Melissa needs to memorize words on a vocabulary list for Russian class. She has memorized 30 of the words, which is five-sixths of the list. How many words are on the list?

Answers

Answer 1
We know that 30 is 5/6 of the list. So we can find out how many words are on the list with the following equation:

[tex] \frac{5}{6} x=30[/tex]

Solve for x by isolating it. First we multiply both sides by 6 to cancel out the one-sixth.

[tex]5x = 180[/tex]

Next divide both sides by 5 to cancel out the 5 being multiplied to the x.

[tex]x = 36[/tex]

The answer is 36 words.


Answer 2
Answer:
The list has 36 words

Explanation:
Assume that the number of words on the list is x.
We are given that:
5/6 of the number of words on the list is equal to 30 words.
This means that:
(5/6)*x = 30
Solve for x as follows:
(5/6)*x = 30

5x = 6*30
5x = 180
x = 180/5
x = 36

Hope this helps :)

Related Questions

PLS PLS HELP, WILL GIVE BRAINLIEST-Kenard takes a square piece of cardboard and cuts 4 in. by 4 in. squares out of each corner. He folds the sides up to make a box without a top.

What equation can Kenard use to determine the volume of the box, where x is the side length of the original piece of cardboard?


Express the equation in standard form.

Enter your answer in the box.

Answers

4x² - 64x + 256 And That Your Equation In Standard Form

1.) Four teachers bought an old boat for $60.
The first teacher paid one-half of the sum of the amounts paid by the other teachers.
The second teacher paid one-third of the sum of the amounts paid by the other teachers.
The third teacher paid one-fourth of the sum of the amounts paid by the other teachers.
How much did the fourth teacher pay?

2.) What is the smallest number of coins that you need so that you can give exact change for any amount from 1 cent to 99 cents?

Show your work please. Any improper answers will be reported and removed- thanks!
:) Have fun!

Answers

For problem number 1:-
1)Let's assume the payment which each one of them paid are A,B,C, and D, for the 1st, 2nd, 3rd and 4th respectively.
so the total payment is the sum of all of them  
A+B+C+D= 60 ----->(eq 1)
The 1st paid 0.5 of the sum of the  other teachers payments
A= 0.5 (B+C+D) ---->(eq 2)

The 2nd paid 1/3 of the others payment
[tex] B= \frac{A+C+D}{3}[/tex] ------>(eq 3) 

The 3rd paid 1/4 of the others payment
[tex] C = \frac{A+B+D}{4} [/tex] ---->(eq 4)
we have now 4 equations in 4 unknowns.

From equation 1 and 2 :-
----------------------------------
By multiplying (eq 2) by 2 and substitute in (eq 1)
2 A = B+C+D (sub in eq 1)
A+ 2A =60
then 3A= 60
then A =$20 (The first teacher's payment)

From equations 1 and 3 :-
------------------------------------
By multiplying (eq 3) by 3
3B = A+C+D (sub in eq 1)
B+3B=60
4B=60
B= $15 (The second teacher's payment)

From equations 1 and 4:-
------------------------------------
By multiplying (eq 4) by 4
then 4 C=A+B+D (sub in eq 1)
4C+ C = 60
5C=60
C= $6 (The third teacher's payment)

By substituting the values of A,B and C in (eq 1).
20 + 15 + 6 + D=60
41+ D =60 (By subtracting both sides by 41)
D = $19.(The forth teacher's payment)

------------------------------------------------------------------------------------------------------------
2)unfortunately i don't your coins cuz im not american :D

Factor by grouping m^2 +8mn -3mn-24n^2
20 POINTS

Answers

Group and factor the GCF, then combine (m+8n) (m-3n)
To factor this is expression, one simple way to do this is to place brackets surrounding each set of 2 terms. Do brackets around m^2 and 8mn and brackets around -3mn - 24n^2.

Then solve for the common factor in each bracket group.

m(m + 8n) - 3n(m + 8n)

(m-3n)(m + 8n) is the answer.

Part 1.] In two or more complete sentences, describe the difference between an infinite series and a finite series.

Part 2.] In two or more complete sentences, explain why the following sequence is an example of a finite series.
2 + 4 + 8 + 16 + ... 256

Part 3.] In two or more complete sentences describe why the following series is an example of an infinite series.
1 + 2 + 3 + 4 + 5 + ...

Part 4.] The first picture

Part 5.] Express the series in summation notation.
2 + 4 + 6 + 8 + 10 + 12

Part 6.] Suppose you start an annuity where you invest $2,000 at the beginning of each year and 4% interest is paid at the end of the year. What is the value of the annuity at the end of 5 years, rounded to the nearest dollar? It is $____

Part 7.] Find the sum picture

Answers

1) A series is called finite, if there is a finite number of factors that need to be added. If there are infinitely many factors (after any finite number of additions, there are still factors to add), then it is called infinite.
2) We have that this is the sup of powers of 2; but it does not take all powers of 2, only until the 8th power of 2. Hence, there are 8 summants, a finite number.
3) We have that this series involves all the natural numbers; "..." means that we should continue adding the next term, meaning that there is no end.
4) In order to find the first term of the series, we need to substitute n=1. Hence the first term is 1/(2*1+1)=1/3. Similarly, the next term is equal to 2/(2*2+1)=2/5
5) We notice that the first term is 2 and then that all the terms are 2 higher than their previous one. Hence we have that if we start summation from 1, we need to double it to get the term. This works for all and hence we have that the series is equal to: [tex]\sum_{n=1 \ n=6} 2n[/tex].
6) We have that after one, year, he gains 4%*2000, hence the final amount is 1.04*2000 after one year. Next year, this becomes the capital and we have to multiply again by 1.04. Hence, after 5 years, the total annuity value is: (1.04)^5*2000=2433$.
7) We have that the sum is 4+7+... up until 3*12+1=37. The sum of those is 246 or else we can have that it is equal to 3* n(n+1)/2+12 where n=12 (The sum of all numbers from 1 to n is given by n*(n+1)/2 )

Answer:for oddysey the answer to number 6 is 10833

Step-by-step explanation:

What is the common ratio of the sequence. -2,6,-18,54

Answers

The common ratio of this sequence is -3. This is evident because the 6/-2 is -3, and we know it is a sequence so the rule consistently applies.

Answer:  The required common ratio of the given geometric sequence is -3.

Step-by-step explanation:  We are given to find the common ratio of the following geometric sequence :

-2,   6,   -18,   54,   .    .    .

We know that

if a(n) denotes the nth term of a geometric sequence, then the common ratio is given by

[tex]r=\dfrac{a_{n+1}}{a_{n}}.[/tex]

For the given sequence, we see that

[tex]\dfrac{a(2)}{a(1)}=\dfrac{6}{-2}=-3,\\\\\\\dfrac{a(3)}{a(2)}=\dfrac{-18}{6}=-3,\\\\\\\dfrac{a(4)}{a(3)}=\dfrac{54}{-18}=-3,\\\\\vdots[/tex]

Therefore, the common ratio is given by

r = -3.

Thus, the required common ratio of the given geometric sequence is -3.

help me please ASAP !!!!!

Answers

You want k such that
.. (10 +k)/2 = 7
Multiplying by 2, we have
.. 10 +k = 14
Then
.. k = 14 -10
.. k = 4

Describe the end behavior of the function f(x) = 3 − 4x + 6x2 − 5x3.

Answers

we are given

[tex]f(x)=3-4x+6x^2-5x^3[/tex]

we can see that this is polynomial

so, firstly we will find degree and leading coefficients

Degree:

It is the highest exponent of the polynomial

highest exponent is 3

so, degree=3

which is odd

Leading coefficient:

It is the constant term multiplied to highest exponent term

we can see that

constant term is -5

so, leading coefficient is -5

which is negative

End behavior:

degree is odd and leading coefficient is negative

so, it rises to left and falls to right

or we can also write as

[tex]x-->-\infty, y-->\infty[/tex]

[tex]x-->\infty, y-->-\infty[/tex]


Answer:

Ends up in Quadrants II and IV

Step-by-step explanation:

Since the leading coefficient is −5 and the degree is 3, the function has the behavior described.

Answer Check!! Which domain restrictions apply to the rational expression.

Answers

You are correct. 

x^2+2x-3 = 0
(x-1)(x+3) = 0
x-1=0 or x+3 = 0
x = 1 or  x = -3
If x = 1 or x = -3, then the denominator is zero.
To avoid division by zero errors, we kick x = 1 and x = -3 out of the domain

Enya is building a storage cupboard in the shape of a rectangular prism. The rectangular prism has a square base with side lengths of 2.3 feet and a height of 3.6 feet. Use percentage to compare the amount of paint she would use to paint all but the bottom surface of the prism to the amount she would use to paint the entire prism. Round your final answer to the nearest tenth.
Enya will paint
________% of the surface area of the storage cupboard.
PLEASE HELP!!!

Answers

To answer this question you would need to find the surface area of this rectangular prism. In order to find the surface area you would find the areas of all six faces. The top and bottom faces would both be square with an area of 5.29 (2.3x 2.3)ft.². All for lateral faces would have areas of 8.28 (2.3x3.6)ft.². Adding these for faces along with the other two faces would give you a total surface area of 43.7 ft.². If you take away the bottom face which is not painted you will have a surface area that is going to be painted of 38.41 ft.². To determine the percentage of this rectangle or prism that is going to be painted, create a ratio of the amount painted to the total amount surface area. Divide these to create a decimal and then converted to a percent. 38.41/43.7=0.879 (87.9%).
Final answer:

To compare the amount of paint Enya would use to paint all but the bottom surface of the storage cupboard to the amount she would use to paint the entire prism, calculate the surface area of the prism and the surface area of all but the bottom surface of the prism. Then, divide the surface area of all but the bottom surface by the surface area of the entire prism and multiply by 100. Round the final answer to the nearest tenth.

Explanation:

To compare the amount of paint Enya would use to paint all but the bottom surface of the storage cupboard to the amount she would use to paint the entire prism, we need to calculate the surface area of the prism and the surface area of all but the bottom surface of the prism.

Step 1: Calculate the surface area of the prism by adding the areas of all its faces. The prism has two rectangular faces with dimensions 2.3 ft by 3.6 ft, two rectangular faces with dimensions 2.3 ft by 2.3 ft, and one rectangular face with dimensions 3.6 ft by 2.3 ft.

Step 2: Calculate the surface area of all but the bottom surface of the prism by subtracting the area of the bottom surface from the total surface area of the prism. The bottom surface has dimensions 2.3 ft by 2.3 ft.

Step 3: Calculate the percentage by dividing the surface area of all but the bottom surface of the prism by the surface area of the entire prism and multiplying by 100. Round the final answer to the nearest tenth.

does the function y=4^-2x represent an exponential growth or decay? what is the percent rate of change?

Answers

Since it has a negative exponent, the equation [tex]y=4^-^2^x[/tex] is showing exponential decay.  The graph will decrease.  
In order to find the percent of change, we need to review our exponent properties.  The product property tells us that when we raise a power to a power, we multiply the exponents.  This means we can view our exponent of -2x as the product of two exponents, -2 and x.  This would look like
[tex]y=(4^-^2)^x[/tex].  We know that negative number exponents tell us to "flip" sides of the fraction, so that tells us that 4⁻² = 1/4² = 1/16.  We can then rewrite our equation as
[tex]y=(\frac{1}{16})^x[/tex]
Exponential decay is in the form y = a(1-b)ˣ.  From our equation, a = 1.  We know that 1-b = 1/16; this means that b must be 15/16.  Thus our percent of decrease would be 15/16 = 0.9375 = 93.75%.
Final answer:

The function y=4^-2x represents exponential decay. The percent rate of change is 6.25%.

Explanation:

The function y=4-2x represents exponential decay. In an exponential decay function, as the value of x increases, the value of y decreases. On the other hand, in exponential growth, as the value of x increases, the value of y increases.

The percent rate of change can be found by determining the decay factor, which is equal to 1 divided by the base of the exponential function raised to the power of the exponent.

In this case, the decay factor would be 4-2 = 1/16. To find the percent rate of change, we can convert the decay factor to a percentage by multiplying it by 100%, so the percent rate of change would be 1/16 * 100% = 6.25%.

Simplify: (8x4)(4x3)/7x2
A. 32x5/7
B. 1/28x
C. 1/3x
D. 7/9x4

Answers

The Answer is A: 

Simplify the following:
(8×4 x^4 x^3)/(7 x^2)

Combine powers. (4 x^3×8 x^4)/(7 x^2) = (4 x^(4 + 3 - 2) 8)/7:
(4×8 x^(4 + 3 - 2))/7

4 + 3 - 2 = 5:
(4×8 x^5)/7

4×8 = 32:
Answer:  (32 x^5)/7

Step-by-step explanation:

The answer is A: (32 × ^5)/7

which of these equations represent functions where x is the input and y is the output? Select each correct answer.
A- x=5
B- y=4
C- y=3x
D- x=3y
E- x+y=5

Answers

The first equation is a constant.  There is no input necessary, and the output remains 5.
The second equation is also a constant.  The output is 4.
In the third equation, y depends on what value of x you use.  x is the input and y is the output.
In the fourth equation, x depends on what value of y you use.  The way it is written, y is the input and x is the output.
In the last equation, either x or y could be the input.  The other variable would change depending on which variable you replace with a number.

Anne had 28 pens, but 23 of them ran out of ink. How many of Anne's pens still have ink?

___of Anne's pens still have ink.

Answers

5 of Anne’s pens still have ink. Since 23 of the 28 pens ran out, 5 pens are still good to write with.

Hope this helped!

Trevor is going to Debra's Steakhouse and really wants filet for dinner and creme brulee for dessert. He knows that the probability of getting a filet at Debra's is 0.9 and the probability of creme brulee being a desert is 0.77. If he knows the two events are independent of one another, show the calculation for P(getting a steak and getting a creme brulee)

Answers

the answer is
B (0.9)(0.77)

Answer:

(0.9)(0.77)  

Step-by-step explanation:

(0.9)(0.77)  

Since the two events are independent you can use the multiplication rule

How would you solve for side a? Pythagorean theorem, cause if that's the case wouldn't
a=?
b=15
c=7
But we know that 2 sides of a triangle can't be greater than the third (or am I getting that rule wrong?)

Answers

The angle is 127°, so the Pythagorean theorem does not apply.

Generally, you would use the Law of Cosines to solve for the third side when given two sides and the angle between them.

EF^2 = 7^2 +15^2 -2*7*15*cos(127°)
EF ≈ √(400.3812) ≈ 20.00953

My guess is that you're expected to use 20 for the length of the 3rd side.

By Heron's formula, s = (7 +15 +20)/2 = 21

Area = √(21*(21 -7)*(21 -15)*(21 -20)) = √(21*14*6*1) = √1764 = 42 . . . . yd^2

_____
More directly,
.. Area = (1/2)*7*15*sin(127°) ≈ 41.928 . . . . yd^2

Help with this Geometry problem please

Answers

The answer would be “C” because 4 goes into 8 twice and 12 3 time Than 5 goes into 10 twice and 15 3 times

Mon wants to make 5 lbs of the sugar syrup. How much water and how much sugar does he need…
to make 1.5% of syrup

Answers

whatever% of anything, is just (whatever/100) * anything.

the syrup is going to be 5lbs total, that includes the sugar in it as well as the water mix.

keeping in mind that the syrup will be a 1.5% syrup, namely 1.5% of it will be sugar, the rest just water then, how much is 1.5% of 5?

well, is just(1.5/100) * 5 or 0.075, namely lbs.

so, 0.075 lbs will be sugar and the rest water, the rest will be 5 - 0.075, or 4.925 lbs.

Solve for x.

3x2−6x+2=0



x=3±23√3
x=6±23√3
x=3±3√3
x=6±43√3

Answers

Answer:

[tex]\frac{3\±\sqrt{3}}{3}[/tex]

Step-by-step explanation:

Whe have the function [tex]3x^2-6x+2=0[/tex]

To solve this equation we must factor.

To factor, we need to find the points where the function is equal to zero. So we use the quadratic formula

[tex]\frac{-b\±\sqrt{b^2-4ac}}{2a}[/tex]

Where:

a = 3

b = -6

c = 2

Then

[tex]\frac{-(-6) + \sqrt{(-6)^2-4(3)(2)}}{2(3)} = \frac{3+\sqrt{3}}{3}\\\\and\\\\\frac{-(-6) - \sqrt{(-6)^2-4(3)(2)}}{2(3)}= \frac{3-\sqrt{3}}{3}[/tex]

finally the correct answer is  [tex]\frac{3\±\sqrt{3}}{3}[/tex]

Final answer:

To solve the quadratic equation 3x² - 6x + 2 = 0, apply the quadratic formula with a=3, b=-6, and c=2, ultimately finding the solutions x = 1 + √(3) / 3 and x = 1 - √(3) / 3.

Explanation:

To solve the quadratic equation 3x² - 6x + 2 = 0, we can use the quadratic formula, which is x = (-b ± √(b² - 4ac)) / (2a) where a, b, and c are coefficients from the equation ax² + bx + c = 0. In this equation, it is given a = 3, b = -6, and c = 2. Substituting these values into the formula gives us:

x = (6 ± √((-6)² - 4 · 3 · 2)) / (2 · 3)

x = (6 ± √(36 - 24)) / 6

x = (6 ± √(12)) / 6

x = (6 ± 2 √(3)) / 6

x = 1 ± √(3) / 3

The two possible solutions for x are then x = 1 + √(3) / 3 and x = 1 - √(3) / 3.

Does the point ( 3 , 3 ) lie on the circle that is centered at the origin and contains the point (3, 0)? Why?
A) Yes, because ( 3 )2 + ( 3 )2 = 9
B) Yes, because you can create always create a circle through two given points. C) No, because ( 3 , 3 ) is less than 3 units away from the origin.
D) No, because ( 3 , 3 ) is greater than 3 units away from the origin.

Answers

D is correct.  Look at the picture of the graph I made.  The point (3,3) is in the upper right corner, not on the circle.  This is because for a circle,
x²+y²=r² where r is the radius.  If we have the point (3,0) then the equation of the circle says
[tex]3^2+0^2=r^2 \\ r=3[/tex]

Then for r=3 we can't get the point (3,3) because
[tex]3^2+3^2 \ \neq 3^2[/tex]

Answer:

Its actually C his whole explanation is wrong

Step-by-step explanation:

Team tool Bella gathered 15 pounds of wood in 1/3 of an hour. What was their speed in pounds per hour.

Answers

Team tool Bella gathered 15 pounds of wood in 1/3 of an hour.

1/3 of an hour is equal to 1/3 of 60 mins = 1/3 * 60 mins = 20 mins

We have to find their speed in pounds per hour( 60 mins).

Pounds of woods gathered in 1 hour or 60 mins = 15/20*60

= 15 * 3

= 45 pounds

Therefore, their speed in pounds per hour is 45 pounds / hour

Hope this helps ..!!

Thank you :)


The diameter of the circle above is 98 cm. What is the circumference of the circle?

Answers


C= 307.88 cm is the answer i hope this helps you

Can someone tell me if the answer is correct?

Answers

Your answer is not correct
3 / ((3√5) + 4)
3 x ((3√5) - 4) / ((3√5) + 4) x ((3√5) - 4)
((9√5) - 12) / (45 - 16)
((9√5) - 12) / 29 is the correct answer

The three sides of a triangle are in the ratio 2:3:5. If the longest side of the triangle is 45m, find the perimenter of the triangle

Answers

longest side = 45 m

5/10 = 45m
1/10 = 9m
10/10 = 90 m.

the perimeter is 90m
2:3:5
x:y:45

5 is multiplied by 9, so you multiply the other 2 numbers by 9 too.
 
x = 2×9 = 18
y = 3×9 = 27

The expression 146 ÷ 144 is equal to _____. 142 2 1410 1

Answers

1.01388888888888888888

The correct answer is 1.

To solve this problem, we need to evaluate the expression [tex]146 \div 144[/tex]and determine which of the given options it is equal to.

The calculation can be represented as:

[tex]146 \div 144 = \frac{146}{144}[/tex]

We can simplify this fraction by finding the common factor between the numerator and denominator and dividing both by that factor.

[tex]\frac{146}{144} = \frac{73 \times 2}{72 \times 2} = \frac{73}{72}[/tex]

Now, we can divide the numerator by the denominator to find the final value.

[tex]\frac{73}{72} = 1.0138\overline{8}[/tex]

Therefore, the expression [tex]146 \div 144[/tex] is approximately equal to 1.

Complete question:

The expression [tex]146 \div 144[/tex] is equal to _____.

A) [tex]142[/tex]

B) [tex]2[/tex]

C) [tex]14^{10}[/tex]

D) [tex]1[/tex]

Scott signed a two-year lease for a monthly rent of $505. How much will
he pay in rent over the term of his lease?
a. $13,130
b. $1,212
c. $6,060
d. $12,120


AGAIN WILL GIVE BRAINEST TO FIRST PERSON WHO ANSWERS

Answers

There are 12 months in a year. The rental term is for 2 years, that's a total of 24 months.

They pay $505 every month

24 months × $505 = $12,120 paid over the lease term.
answer is D.
D is your answer!
There are 12 months in a year so since there were two years then you would ad  12+12. This would equal 24 then you would multiply that number by 505. You would then get the answer of 12,120$. 
Hope this helps. 

Complete this statement: The sum of the measures of the exterior angles of an n-gon, one at each vertex, is _____ degrees.

a) 360
b) (n-2)180
c) [tex]\frac{(n-2)180}{n} [/tex]
d) 180n

Please help ASAP.

Answers

Answer: option a. 360 °.

Explanation:

The exterior angles of simple polygons add up 360°.

That is so because making the route of the exterior angles one by one takes you to make a complete revolution (turn), which as we know is 360 °.

You can see that if you draw any polygon and mark its exterior angles and translate all the segments (keeping the angles) to a common vertex. There you will see the angles cover all the circle, so the sum of the angles is 360°.

Which of the following is equivalent to log7 50 rounded to three decimal places?

2.010
1.772
0.854
0.497

Answers

Log7 50 = [tex] \frac{log 50}{log 7} [/tex] = 2.01038 (Answer A)

Answer:

Option A -  [tex]log_7 50=2.010[/tex]            

Step-by-step explanation:

Given : The expression [tex]log_7 50[/tex]

To find : Which of the following is equivalent and rounded to three decimal places.

Solution :

We solve the given expression  [tex]log_7 50[/tex] using calculator

We get, [tex]log_7 50=2.0103821378[/tex]

Rounded to three decimal places

[tex]log_7 50=2.010[/tex]

Therefore, Option A is correct.

     

[tex]1,\frac{1}{8},\frac{1}{27},\frac{1}{64},...,\frac{1}{n^{3}},...[/tex]
The denominator of the seventh term is
A.] 125
B.] 216
C.] 343
D.] 513

Answers

Answer: option C) 343

Justification:

The sequence of the denominators is:

term         denominator

1               1 = 1^3
2               8 = 2^3
3               27 = 3^3
4               64 = 4^3

5               5^3 = 125
6               6^3 = 216
7               7^3 = 343

And that is the term searched. So, the answer is the option C) 343.

Answer:

the answer is C.] 343

Three weeks ago John bought stock at 49 1/4 ; today the stock is valued at 49 7/8. We could say the stock is preforming at which of the following?

Answers

Solution:

Value of Stock three weeks ago = [tex]49 \frac{1}{4}[/tex]

Current value of stock = [tex]49 \frac{7}{8}[/tex]

Total increase= [tex]49 \frac{7}{8}[/tex]-[tex]49 \frac{1}{4}[/tex]=[tex]\frac{5}{8}[/tex]

So, we can conclude from above two observation, that

The market value of that stock or bond has rose higher the reason being value of the  organization  or product i.e stock is slanting in upward direction.Why value of  organization has increased because company has cordial relationship with it's employees, clients and the people attached with this  organization, means distribution of profit is equally shared between owner and people attached with this organization.  

The gym teacher is told that the average height of the girls in her physical education class is 5’4”, and the heights follow the normal distribution. She is told that 68% of the girls are 5’2” to 5’6” tall. She measures the height of each girl and finds that the heights do follow the normal distribution. Based on her findings, she determines that 95% of the girls will be 5’0” to 5’8” tall. Use your knowledge of normal distribution to select two options that will justify the gym teacher’s belief.

Answers

Hello,
Please, see the attached file.
Thanks.

Final answer:

The gym teacher's belief is justified by using the empirical rule, which describes the distribution of data in a normal distribution. Since 68% of the girls fall within 1 standard deviation of the mean, it's likely that 95% fall within 2 standard deviations, supporting her height range belief.

Explanation:

The gym teacher's belief can be justified by understanding the properties of the normal distribution and the empirical rule. The empirical rule states that for a normal distribution:

Approximately 68% of the data will fall within 1 standard deviation (±1σ) of the mean.

Approximately 95% of the data will fall within 2 standard deviations (±2σ) of the mean.

Approximately 99.7% of the data will fall within 3 standard deviations (±3σ) of the mean.

In the teacher's class, 68% of the girls are between 5'2” and 5'6”, which is within 1 standard deviation of the mean height of 5'4”. Therefore, it's likely that 95% of the girls would fall within 2 standard deviations, which explains her belief that 95% of the girls would be between 5’0” to 5’8”.

Other Questions
Dora has recently started working on a research study that hypothesizes that people who have a defect in a specific gene may have a predisposition to depression. As a second hypothesis in the study, the researcher is studying the impact of a significant lack of social support in triggering the onset of depression in such people. If Doras research successfully validates both hypotheses, which of the following conclusion may be drawn? Read this excerpt from an op-ed in the Daily Times:Light-rail systems have been tried all over the country, and they've failed. Although the people who support them have noble intentions, sadly, the system the city proposes is doomed to fail as well. People simply enjoy their cars too much to endure any inconvenience for the sake of the environment. And I don't blame them. As the owner of Jake's Used Cars and Trucks, I have seen the joy and freedom car ownership brings people. Americans will never abandon that feeling for the sake of being slightly better citizens. I believe it is far more responsible to purchase a high-quality car with good fuel efficiency. Building an entire light-rail system from the ground up, as the city proposes to do, will be more wasteful in the end if nobody uses it not to mention that it will take years to build and cost taxpayers millions of dollars. I encourage all city residents to vote against the light-rail system on May 1.Which statement best describes the author's point of view?A. The author thinks Americans should be more environmentally responsible.B. The author wants citizens to visit his car dealership.C. The author is opposed to the light-rail project.D. The author would like the city to implement its project successfully. I NEED HELP ASAP PLEASEWho painted the image seen below?a.Raphaelb.Michelangeloc.Leonardo da Vincid.Donatello which statemeant is the most reasonable inference about one of the underlying meanings of this excerpt? A. The German invasion caught the Russian army completely by surprise B. Russia wasnt prepared to fight Germany, because its troops were fighting elsewhereC. The Russian army couldnt fight because it hadnt been training for warD. Russia wasnt prepared for a German invasion, but its troops were too far from its frontiers How much heat energy, in kilojoules, is required to convert 76.0 g of ice at 18.0 c to water at 25.0 c ? You are a counselor working at a publicly funded alcohol and drug treatment program. your client, doug, attends one of your counseling groups. although he has a previous conviction and is on probation for possession of an illegal substance, he entered treatment as a voluntary client. doug's probation officer recently learned from another probationer that doug is in treatment, and the officer has sent you a letter requesting that you provide a progress report and an assessment of doug's likelihood of relapse. the probation officer will use this information, if favorable, to petition the court for doug's early release from probation. discuss your options for responding to the probation officer's request and describe what you would do. cite relevant legal issues, including federal confidentiality and privacy regulations in your discussion. identify the specific circumstances under which you would provide the information requested by the probation officer. how would you handle this differently if doug were involuntarily attending the group Sojourner Truth's "Ain't I a Woman?" describes _____.a. her daring escape from a brutal slave masterb. a proposed bill for women to gain the right to votec. what it was like to be an African American woman in the nineteenth centuryd. the similarities between women in the North and African Americans in the South Samir knows that the volume of prism is 40 cubic units . He also knows that the width can of the prism is 2 units and the height is 5 units. What is the length of the prism? The two most important factors affecting almost every aspect of the clotting process are __________. Which of the following best describes the Nisei 442nd Regimental Combat Team? A.) It consisted mostly of Japanese immigrants. B.) It fought in the Pacific near Japan. C.) It was the most integrated army unit in WWII. D.)It consisted mostly of Chinese Americans. Anthony has added a line of best fit to the scatterplot at right. Do you agree with where he put the line? Explain your reasoning Matt Miller, age 28, takes out $50,000 of straight-life insurance. His annual premium is $418.20. Usingthe tables in the Business Math Handbook that accompanies the course textbook, determine the cash valueof his policy at the end of 20 years.A. $13,250B. $26,000C. $30,000D. $26,500 The entity that normally is supposed to determine whether an academic researcher's conflict of interest can be managed is: This is the period of during which an embryo develops in the uterus from conception until birth. Fiona is serving iced tea and lemonade at a picnic. She has only 44 cups in which to serve the drinks. If x represents the number of glasses of iced tea and y represents the number of glasses of lemonade, which equation represents the number of glasses of iced tea she can serve? Phil received a prize of x dollars from a poker tournament. The tournament cost him 100 dollars to enter. What were Phil's net winnings from the tournament? Write your answer as an expression. Es improbable que muchas personas _______ en la medicina tradicional.creecreencreancrea Write a while loop that adjusts uservalue while uservalue is less than 0 or greater than 80. if uservalue is greater than 80, then subtract 5 from uservalue. if uservalue is less than 0, then add 10 to uservalue. Which shows two triangles that are congruent by ASA? One brand of cereal sells for $2.89 for 9 ounces. What is the unit price per pound? a. $.32 b. $4.29 c. $2.15 d. $5.14 ANSWER IS NOT A