Which expression is equivalent to StartFraction b Superscript negative 2 Baseline Over a b Superscript negative 3 Baseline EndFraction? Assume a not-equals 0, b not-equals 0.

Which Expression Is Equivalent To StartFraction B Superscript Negative 2 Baseline Over A B Superscript

Answers

Answer 1

Given:

The given expression is [tex]\frac{b^{-2}}{a b^{-3}}[/tex]

Let us assume that [tex]a \neq 0, b \neq 0[/tex]

We need to determine an expression that is equivalent to the expression [tex]\frac{b^{-2}}{a b^{-3}}[/tex]

Equivalent expression:

The equivalent expression can be determined by solving the given expression.

Hence, applying the exponent rule, [tex]\frac{x^{a}}{x^{b}}=x^{a-b}[/tex]

Thus, we get;

[tex]\frac{b^{-2}}{a b^{-3}}=\frac{b^{-2-(-3)}}{a}[/tex]

Subtracting the numbers, we get;

[tex]\frac{b^{-2}}{a b^{-3}}=\frac{b}{a}[/tex]

Thus, the equivalent expression is [tex]\frac{b}{a}[/tex]

Hence, Option D is the correct answer.

Answer 2

Answer:

d

Step-by-step explanation:


Related Questions

There are 16 baseball games per day at Lansing's annual baseball tournament, which lasts 10 days. Estimate the number of baseball games during the tournament by rounding the larger number to the nearest ten.

Answers

To estimate the total number of games during the baseball tournament, round the daily games (16) to the nearest ten (20) and multiply by the number of days (10), resulting in an estimated 200 games.

To estimate the number of baseball games during Lansing's annual baseball tournament, we can round the larger number to the nearest ten and then multiply it by the number of days in the tournament. The larger number, representing the number of games per day, is 16. Rounding 16 to the nearest ten gives us 20. As the tournament lasts 10 days, we calculate the total by multiplying these two numbers.

Estimated total number of games = Rounded number of games per day x Number of days in the tournament
Estimated total number of games = 20 x 10
Estimated total number of games = 200 games.

please help with this

Answers

Answer:

A = Quartile 1 = 74.725

B = Median (quartile 2) = 80.25

C = Quartile 3 = 82.125

D = Minimum = 74.1

E = Maximum = 82.7

Step-by-step explanation:

The values for the data for the average life expectancy are as follows;

North Carolina                    79.6  

Oregon                                82  

District of Columbia           77.9

Nevada                               81.3  

New York                           82.5  

Colorado                            80.9  

Alaska                                74.9  

Connecticut                       82.7  

Montana                            74.1  

Mississippi                         74.2  

Sorting the data we have;

74.1

74.2

74.9

77.9

79.6

80.9

81.3

82

82.5

82.7

The minimum value is 74.1

The maximum value is 82.7

The 1st quartile is the [tex]\frac{10 + 1}{4} th[/tex] term or 74.725

The median 2nd quartile is the [tex]\frac{10 + 1}{2} th[/tex] term and the value is 80.25

Third quartile value is the[tex]\frac{3\times (10 + 1)}{4} th[/tex] term or 82.125.

If you were to plot the point (4,-12) what would be the correct method?

Answers

Answer: it is the last one

Step-by-step explanation:

If you were to plot the point (4,-12), the correct method is to plot the point 4 units right, then 12 units down

Option D is correct

If a point is expressed in the form (x, y), the coordinate x represents the location of the point on the horizontal axis while the coordinate y represents the location of the point on the vertical axis

If x is positive, it means that the point is plotted on the right hand side of the horizontal axis. If x is negative, it means that the point is plotted on the left hand side of the horizontal axis

If y is positive, it means that the point is plotted on the  top region of the vertical axis. If y is negative, it means that the point is plotted on the bottom region of the vertical axis

For the point (4, -12)

x = 4, and y = -12

Since x = 4 is positive, the graph is plotted 4 units to the right

Since y = -12 is negative, the graph is plotted 12 units down

Therefore, If you were to plot the point (4,-12), the correct method is to plot the point 4 units right, then 12 units down

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At barlow school 4/9 of the 873 students are boys at willow school 2/3 of the 630 students are girls which school has the greater number of boys and by how many

Answers

Answer:

There are 178 more boys in Barlow school as compared to Willow school.

Step-by-step explanation:

We are given the following in the question:

Barlow school:

Total number of students = 873

Number of boys =

[tex]=\dfrac{4}{9}\times 873 = 388[/tex]

Willow school:

Total number of students = 630

Number of girls =

[tex]=\dfrac{2}{3}\times 630 = 420[/tex]

Number of boys =

Total number of students - total number of girls

[tex]=630-420 = 210[/tex]

Thus, Barlow school has greater number of boys than Willow school.

Difference between the number of boys =

[tex]=388-210\\=178[/tex]

Thus, there are 178 more boys in Barlow school as compared to Willow school.

Help asap please due tomorrow

Answers

Answer:

The first one is 15.75 lbs or 15 3/4. The second one is 28 years old. The third one is$9.90 each t-shirt

Step-by-step explanation:

For the first one you multiply 18 by 14 and you get 252. Then there is 16 ounces in a pound so you divide by 16. Then you get 15.75. So that is your answer. The 2nd one you take 84 and multiply it by 1/6 then since she is twice the age of her sister you multiply by 2. so it would look like: 84 times 1/6= 14

14 times 2 = 28. So she is 28 years old. The third one you take 32 and subtract it by 12.20. You will be left with 19.8. Then both t-shirts cost the same so you would divide 19.8 by 2. You are left with 9.9. So the answer is $9.90. Sorry this took 10 minutes.

Answer:

15.75lb of hotdogs

Amy is 28 years old

she paid $9.90 for each shirt.

Step-by-step explanation:

1) we multiply the number of packages by how much each package weighs. which gives us 252ounces we can then convert ounces to pounds by multiplying by 0.0625pounds/1ounce which gives us 15.75lb

2) amy's age is her fathers age devided by 6 which gives us fourteen. we know Hannah's age is twice Amy's age, so we multiply 14 by two, 14X2=28

3) we subtract the money Rose spent on the poster from the overall amount rose spent. $32.00-$12.20=$19.80. so we know Rose spent $19.80 on t-shirts, since we also know she bought two equaly priced t-shirts we can devide $19.80 by 2, $19.80/2=$9.90, therfore, she spent $9.90 on each shirt.

Please help me solve just for the answer anything helps M varies inversely as the square of P. If M is 9 when P is 2, then find M when P is 3.

Answers

Answer:

4

Step-by-step explanation:

When M varies inversely P squared rhen this is represented as

[tex]M=\frac {k}{P^{2}}[/tex]

Here, k is a constant of proportionality

Now when M is 9 and P is 2, P squared will be 4. Now substituting the value of P squared and M into the equation we can find the xonstant of proportionality as

K=9*4=36

Now that we have k, when P is 3 then we substitute the value of P as 3 and k as 36 into the first equation hence

[tex]M=\frac {36}{3^{2}}=4[/tex]

Therefore, M=4

A _____________________________ has a constant change in the x values and a constant ratio in the y values.

Answers

Hamburgerrrrrrrrrrrrrrrrrr

A 'directly proportional' has a constant change in the x values and a constant ratio in the y values' is filled by the term .

A directly proportional relationship between two variables means that there is a constant change in the x values and a constant ratio in the y values. In mathematical terms, we say that y is directly proportional to x if y = kx, where k is known as the proportionality constant. This implies that for any constant increment in x, there will be a proportional constant change in y.

If we plot a graph of two variables that are directly proportional, the result is a straight line that passes through the origin (0, 0). This is because the ratio y/x remains constant at the value of k. The slope of this line represents the constant rate of change between y and x, and the slope is equal to the proportionality constant k.

¿Cuántas personas encuestadas se comunican más de 77 minutos?
AYUDA POR FAVOR ES DE APRENDO EN CASA

Answers

Respuesta:

se comunican 27 personas 9 +14+4=27 personas

Explicación paso a paso:

para resolver vean los datos en la tabla de frecuencia que van a desarrollar

observamos el intervalo [77; 81[ a partir de el determinamos la cantidad de personas que se comunican 77 minutos o mas minutos

The difference of a number and 8

Answers

Answer:8

Step-by-step explanation:

A square root of paper 150 millimeters on a side is folded in half along a diagonal. The result is a 45° -45° -90° triangle. What is the length of the hypotenuse of this triangle in millimeters? Write your answer in simplified radical form, if necessary.

Answers

Answer:

The length of the hypotenuse of this triangle is 150√2 mm.

Step-by-step explanation:

Consider the square ABCD shown in the image below.

The sides are 150 mm each.

All the angles of a square are 90°.

Now The square is folded in half along the diagonal BD.

The angles A, B and D are:  45°, 45° and 90°.

The hypotenuse of the right angled triangle is BD.

Compute the length of BD using the pythagoras theorem as follows:

[tex]BD^{2}=AB^{2}+AD^{2}\\=150^{2}+150^{2}\\=2\times 150^{2}\\BD=\sqrt{2\times 150^{2}}\\=150\sqrt{2}[/tex]

Thus, the length of the hypotenuse of this triangle is 150√2 mm.

In order to answer the following question, please use the following image down below:

Find the value of x.

X=(Blank)

What is the value of X? Please show all the work on how you got your answer.

(If you can't explain your work, then it's fine. The only thing that I'm asking for is for you to show the work alongside your answer)

Answers

Answer:

23

Step-by-step explanation:

(x-3)(9) = (10)(18)

9x - 27 = 180

9x = 207

x = 23

Mars has m moons. The number of moons of Pluto is one more than twice the number of moons of Mars. The number of moons of Neptune is one less than 3 times the number of moons of Pluto. Write and interpret a simplified expression that represents the number of moons of Neptune

Answers

Final answer:

The simplified expression for the number of moons of Neptune, based on the variable for Mars' moons m, is 6m + 2, meaning Neptune has twice as many moons as Mars plus two more.

Explanation:

The student has asked to write and interpret a simplified expression that represents the number of moons of Neptune, based on the information that Mars has m moons, Pluto has one more than twice the number of moons of Mars, and Neptune has one less than three times the number of moons of Pluto.

Let's denote the number of moons of Mars as m. According to the information, Pluto has 2m + 1 moons. Therefore, Neptune would have 3(2m + 1) - 1 moons. Simplifying this expression:

Neptune's moons = 3(2m + 1) - 1

= 6m + 3 - 1

= 6m + 2

The simplified expression 6m + 2 represents the number of moons of Neptune, which means that Neptune has twice as many moons as Mars plus an additional two moons.

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Which function has an initial value of 0.2?
Group of answer choices

Function Three

Function Four

Function Two

Function One


PICTURE IS BELOW

Answers

Answer:

  Function Four

Step-by-step explanation:

Put x=0 into each of the functions and see what you get.

  1. 3

  2. 2

  3. 1

  4. 0.2 . . . . function 4 is the one you want

  5. 0

_____

Anything with an exponent of 0 has a value of 1. (except 0^0 is indeterminate)

A cylindrical drinking glass can hold 56.52 cubic inches of
water. The diameter of the glass is 3 in. How tall is the glass?
Use 3.14 for T.
A. 4 inches
B. 6 inches
CC. 7 inches
D. 8 inches

Answers

Answer:

The answer is

D. 8 inches

Step-by-step explanation:

This problem bothers on the mensuration of solid shapes, a cylinder this time.

Given data

Volume of cylindrical shape v=

56.52 inch³

Diameter of cylindrical glass d= 3

inch

But raduis r =diameter/2=3/2= 1.5

inch

We know that the the expression for the volume of a cylinder is given as

v= πr²h

Substituting our given data to solve for the height h

56.52= 3.14*(1.5)²*h

56.52= 7.065h

h= 56.52/7.065

h= 8 inches

Final answer:

To calculate the height of the cylindrical glass, use the volume formula with the radius from the diameter, and solve for the height. The final calculation shows that the glass is 8 inches tall, corresponding to option D.

Explanation:

To find the height of a cylindrical drinking glass given its volume and diameter, we can use the formula for the volume of a cylinder: V = πr²h, where V is the volume, π (pi) is a constant approximated as 3.14, r is the radius of the cylinder, and h is the height of the cylinder.

Since the diameter is given as 3 inches, the radius r is half of that, which is 1.5 inches. By substituting the values into the formula and solving for h, we get:

V = πr²h

56.52 = 3.14 × (1.5)² × h

56.52 = 3.14 × 2.25 × h

56.52 = 7.065 × h

h = 56.52 / 7.065

h = 8 inches

Therefore, the height of the drinking glass is 8 inches, which corresponds to choice D.

whats the slope of y=5x-1

Answers

slope= 5
y-intercept= -1
Short Answer: 5
X is your slope

What is the slope of (2,4) and (6,7) ?

Answers

Answer:

(7-4)/(6-2)= 3/4

Step-by-step explanation:

Answer:

3/4

Step-by-step explanation:

Rise/ Run = (7-4)/(6-2) = 3/4

which expressions are equivalent to the one below? 21x/7x

Answers

Step-by-step explanation:

21x/7x = 21/7    (The x cancel out)

          = 3

A spinner travels around a circle. The radius is 3 inches. Mike spins the spinner and it travels completely around the circle 5 times. About how far did the tip of the spinner travel?

Answers

Answer:

The spinner travelled 94.2 inches.

Step-by-step explanation:

In order to solve this question we first need to calculate the length of the circle, that is given by the following formula:

length = 2*pi*r

length = 2*3.14*3 = 18.84 inches

Since the spinner revolved around the circle 5 times, the distance travelled by the tip is the length of the circle multiplied by 5, as shown below:

distance = length*5

distance = 18.84*5 = 94.2 inches

The spinner travelled 94.2 inches.

Answer:

94.2 inches.

Step-by-step explanation:

The length of the circle can be determined by

length 'l'= 2πr

l = 2 x 3.14 x 3 = 18.84 inches

As the spinner and it travels completely around the circle 5 times, therefore, we'll have the distance of

distance = l x 5

distance = 18.84 x 5 => 94.2 inches

Thus, the tip of the spinner traveled 94.2 inches.


The common ratio in a geometric series is 4 and the first term is 3.
Find the sum of the first 8 terms in the series.
Show Calculator

Answers

Answer:

The sum of the first 8 terms in the series is 65535.

Step-by-step explanation:

We have,

The common ratio in a geometric series, r = 4

First term of GP is, a = 3

It is required to find the sum of the first 8 terms in the series. The sum of first n terms of a GP is given by :

[tex]S_n=\dfrac{a(r^n-1)}{r-1}, r>1[/tex]

Here, n = 8

[tex]S_8=\dfrac{3\times ((4)^8-1)}{4-1}\\\\S_8=65535[/tex]

So, the sum of the first 8 terms in the series is 65535.

subtract 7/9 from 4 / 9​

Answers

The Answer is 3/9

7-4=3

Answer:

3/9

Step-by-step explanation:

You just substract the numerator :) So, 7-4= 3

Use technology or a z-score table to answer the question.

The number of baby carrots in a bag is normally distributed with a mean of 94 carrots and a standard deviation of 8.2 carrots.

Approximately what percent of the bags of baby carrots have between 90 and 100 carrots?

Answers

Answer: 46%

Step-by-step explanation:

Since the number of baby carrots in a bag is normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = the number of baby carrots in the bag.

µ = mean

σ = standard deviation

From the information given,

µ = 94 carrots

σ = 8.2 carrots

The probability that a bag of baby carrots have between 90 and 100 carrots is expressed as

P(90 ≤ x ≤ 100)

For x = 90,

z = (90 - 94)/8.2 = - 0.49

Looking at the normal distribution table, the probability corresponding to the z score is 0.31

For x = 100,

z = (100 - 94)/8.2 = 0.73

Looking at the normal distribution table, the probability corresponding to the z score is 0.77

Therefore,

P(90 ≤ x ≤ 100) = 0.77 - 0.31 = 0.46

The percent of the bags of baby carrots that have between 90 and 100 carrots is

0.46 × 100 = 46%

What is the first step in solving the equation
x^2-16/25=0
What is the second step in solving the equation?

Answers

Answer:

First Step: separate x^2 from -16

Second Step: add -16/25 to the other side.

Step-by-step explanation:

x^2 - 16/25 = 0

^^ this might be easier if you separate x^2 and -16

First Step-

so rewrite the problem as x^2/25  -16/25 = 0

then...

Second Step-

add -16/25 to the other side. This makes it: x^2/25 = 16/25

Continuation-

Now, you can multiply 25 on both sides to cancel it out.

so you have x^2 = -16

Message me if you want to solve for x.

Grace and her dad are planning to attend the state fair. An adult ticket is $15.00. The price of an adult ticket is one half the price of a student ticket plus $8.00. Write an equation to determine how much Grace will pay for a student ticket.

Answers

Answer:

(1/2)x + 8 = 15

Step-by-step explanation:

3. Given that (5,12, 13) is a Pythagorean triple, which of the following isn't a Pythagorcan
triple?
(1) (10, 24, 26)
(3) (50,120,130)
(2) (10, 17, 18)
(4) (15, 36, 39)

Answers

Answer:

(2) (10,17,18)

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Well, let’s use a cancelling technique.

We know that 10, 24, 26 is just 5, 12, 13 multiplied by 2. So that works! And 50, 120, 130 is just 5, 12, 13 multiplied by 10. So that also works! And 15, 36, 39 is just 5, 12, 14 multiplied by 3. Therefore 2 is our answer...

What is the greatest common factor of 2e^2+12e+22

Answers

Answer:

2(e^2+6e+11) is the GCF

Evaluate the following:

ln ex + 1

A) x-2
B) y+1
C) x+1

Pls help, I don't understand this :(

Answers

Answer:

I believe the answer is C, x+1 :)

what is circumference of a circle with a radius of 25 feet?

Answers

Answer:

C≈157.08ft

Solution

C=2πr=2·π·25≈157.07963ft

Answer:

157.0796327 is my answer

Which statements about square roots are true? Check all that apply.
The square root of a positive number cannot be negative.
All positive numbers have two square roots.
18 = 9 because 9(2) = 18.
149 = 7 because 7(7) = 49.
25 = 5 because 52= 25.

Answers

Final answer:

The square root of a positive number cannot be negative, all positive numbers have two square roots, and 25 = 5 because 52 = 25.

Explanation:

The statements that are true about square roots are:

The square root of a positive number cannot be negative.All positive numbers have two square roots.25 = 5 because 52 = 25.

These statements are correct because the square root of a positive number will always be positive, every positive number has two square roots (one positive and one negative), and the square root of 25 is 5 because 5 multiplied by itself is equal to 25.

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Simplify -3xy 3 + 7xy 3 + (-xy 3) + (-3xy 3

Answers

(−3x)(y3)+7xy3+(−x)(y3)+(−3x)(y3) = 0

What does V= If V/13 =14

Answers

Answer:

182

Step-by-step explanation:

Reverse the problem,

13 x 14 = ?

13 x 14 is 182

182/13=14

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Wendy was able to evaluate the bands used for her braces using ____________ qualities. She evaluates the doctor's expertise and service based on _____________ qualities. a. experience; credence b. search; experience c. credence; search d. credence; experience e. search; credence can someone please help I dont get it and I just want answers I have been trying to solve this for 1 hour now