The "meter" is a larger unit than the "centimeter." Every time you need to convert a larger metric unit to a smaller one, you must multiply to find a greater value.
there are 100 cm in a meter so the fraction would be 8/100 or simplified 2/25
Find the lengths of all sides of the right triangle below if its area is 400.
2x * x : 2 = 400
x = 20 (side x)
20 * 2 = 80 (side 2x)
√80²+20²=
82.46 (side H)
The length of the sides of the triangle are x = 20 units , 2x = 40 units , and H = 44.72 units.
Given data:
Let the triangle be represented as ΔABC
Now, the measure of the sides of the triangle are:
The measure of AB = 2x
The measure of BC = x
And, the measure of hypotenuse H = H
The area of the triangle is 400 units²
So, 400 = ( 1/2 )(x ) (2x )
x² = 400
x = 20 units
So, the measure of AB = 40 units
And, the hypotenuse is H = √ [ ( 2x )² + ( x )² ]
H = √ ( 1600 + 400 )
H = √2000
H = 44.72 units
Hence, the length of the triangle is solved.
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Which of the graphs below would result if you made the leading term of the following function negative?
F(x) = 5x^3 + x - 8
I believe the answer is Graph D
Answer:
Graph D
Step-by-step explanation:
Given is the function
f(x) =[tex]5x^3+x-8[/tex]
When leading term is changed to negative we get new function
g(x) = [tex]-5x^3+x-8[/tex]
To find y intercept:
Put x=0
Y intercept = 5(0)+0-8 =-8
Since only graph D has y intercept -8, we get graph D is the answer.
Can anyone do this?? I need some help over here!
25. 9/20
Steps-
1) Simplify 1/5 and 1/4
2) Find the common denominator
4/20+5/20
3) (4+5)/20
4) 9/20
Answer- 9/20
Try the rest on your own! :)
If X equals 6 then find the matching value for y 4x-3y=9
Answer:
Y = 5
Step-by-step explanation:
Since we know six is the value of X we can go ahead and multiply 4 and 6
4 X 6 = 24
Now there are different ways to find the value of Y
How I find the value is I subtracted 24 from 9
That gives you 15
Next you find what number you need to multiply by 3 to get 15
In this case your answer is 5
Then to be extra sure subtract 24 and 15 and you'll get 9
Hope this helps!
y = 5
substitute x = 6 into the equation and solve for y
(4 × 6 ) - 3y = 9
24 - 3y = 9 ( subtract 24 from both sides )
- 3y = - 15 ( divide both sides by - 3 )
y = 5
Order of operation 7 * (3+4+6)
First add 3+4+6= 13 times 7=91
Lol
91 is the correct answer. I will give you a hint! *You had to used order of operations stands for pemdas: p-parenthesis, e-exponents, m-multiply, d-divide, a-add, and s-subtracting. First you had to calculate with parenthesis first, and it gave us, [tex](3+6+4)=13[/tex]. And then you had to multiply and divide from left to right, and it gave us the answer is 7*13=91. 91 is the correct answer. Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie
complete: __:11= 1/3 :6
[tex]\frac{11}{18}[/tex]
let n represent the number to be found
simplify the ratio on the right by multiplying both parts by 3
we now have
[tex]\frac{n}{11}[/tex] = [tex]\frac{1}{18}[/tex] ( cross-multiply )
18n = 11 ( divide both sides by 18 )
n = [tex]\frac{11}{18}[/tex]
The complete ratio for __:11= 1/3 :6 is [tex]\frac{11}{18} : 11 = \frac{1}{3} : 6[/tex]
The given equivalent ratio expression is:
__:11= 1/3 :6
This can be re-written as:
[tex]x : 11 = \frac{1}{3}:6[/tex]
Rewrite the ratio in fraction form:
[tex]\frac{x}{11} = \frac{1}{3} \div 6[/tex]
Change the division sign on the right to multiplication, and 6 to 1/6
[tex]\frac{x}{11} = \frac{1}{3} \times \frac{1}{6} \\\\\frac{x}{11} = \frac{1}{18}[/tex]
Cross multiply:
18x = 11
Divide both sides bu 18
[tex]\frac{18x}{18} = \frac{11}{18} \\\\x = \frac{11}{18}[/tex]
Therefore, the equivalent ratio is [tex]\frac{11}{18} : 11 = \frac{1}{3} : 6[/tex]
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Write the unknown number for n. 5.28-3.4=n
n = 28
to evaluate the expression, perform the multiplications before subtraction
( 5 × 28 ) - ( 3 × 4 ) = 140 - 12 = 128
Complete the following graphic organizer and then to find the missing information
a) 4
b) 47
c) 225
d) 120/400
Answer:
a. Whole is 4
b. Whole is 225
c. part is 47
d.Part is 120 whole is 400
Step-by-step explanation:
With this problems of basci math you just have to think how much out of how much, the whole is the complete part and the part is what you are taking of or calculating, with fractions is easy because the whole is the number that is below and the part is the number on top of the fraction, and with percentages the number tha comes after teh "of" is the whole, and the number before is the part.
PLZ HELP GEOMETRY BELOW
The answer is C because AO and BO are equal. And with AO being three times the length of CO, BO should be the length of DO
Select the locations on the number line to plot the points 9/2 and −7/2 .
9/2 would be on the right -7/2 will be on the left hope i helped
Answer:
The easiest way to plot the fraction in the number line is to change the fraction into the decimal then plot it, as decimal is easily detected in the number line as compare to the fraction.
The Fraction [tex]\frac{9}{2} = 4.5[/tex]
and value 4.5 lies exact between 4 and 5.
The Fraction [tex]\frac{-7}{2} = -3.5[/tex]
and value 4.5 lies exact between -4 and -3.
It is shown below.
......
Help Please.....
It is 6561 because 3^12 is 531441 and 3^4 is 81 so when you divide you get 6561.
Sandy has 8 markers. Alex has 6 fewer markers than sandy. Jill has 2 markers. How many markers do they have in all? Show your work. Then explain how you found the answer.
so alex would have 2 markers plus jills 2 markers plus 8 markers is 12 markers all together, feel free to comment if you don't understand fully, and i will try to better my explanation
At most, Keith can spend $90 on sandwiches and chips for a company lunch. He already bought chips for $15 and will buy sandwiches that cost $6 each. The inequality 15 + 6s ≤ 90 represents the described cost, where s is the maximum number of sandwiches that could be bought. What is the maximum number of sandwiches Keith can buy? A) 12 sandwiches B) 13 sandwiches C) 17 sandwiches D) 18 sandwiches
A. 12 sandwiches. He can buy 12 because 6*12=72. He already has the chips at 15.00. So 72+15=87. Close to the amount of $90.00
If f(x)=4x^3 - 6x^2 + 2x - 5, then f(-2) = ___________
f(x)=4x^3 - 6x^2 + 2x - 5
f(-2)
Replace X with -2:
4(-2)^3 - 6(-2)^2 + 2(-2) - 5 =
Calulate the powers:
4(-8) - 6(4) +(-4) -5=
Multiply:
-32 - 24 -4 -5=
Subtract
-65
What is the perimeter of triangle ABC round each step by the nearest 10th see image. Thanks so much
Perimeter of the triangle ABC is 18.7 units.
Coordinate of the point A is (4, -1), B is (-1, 4) and C is (0, -3).
Length of the side AB = [tex]\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]
AB = [tex]\sqrt{(-1-4)^{2}+(4+1)^{2}} =\sqrt{50}[/tex]
AB = 7.07 units = 7.1 units ( rounded to the nearest 10th)
Length of the side BC = [tex]\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]
BC = [tex]\sqrt{(0+1)^{2}+(-3-4)^{2}}[/tex]
BC = [tex]\sqrt{50}[/tex]
BC = 7.07 units = 7.1 units ( rounded to the nearest 10th)
Length of the side CA =[tex]\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]
CA = [tex]\sqrt{(4-0)^{2}+(-1+3)^{2}}[/tex]
CA = [tex]\sqrt{20}[/tex]
CA = 4.47 units = 4.5 ( rounded to the nearest 10th)
Perimeter of the triangle ABC = sum of all three sides = (7.1 + 7.1 + 4.5) units = 18.7 units
please please help me and fast
A college student realized that he was spending too much money on music. For the remaining 5 months of the year his goal is to spend a mean of $50 a month towards music. How much can he spend in December, taking into consideration that in the other 4 months he spent $20 , $75 , $20 , and $90 , respectively? Round your answer to two decimal places, if necessary.
the expression for mean in this case is
[tex]50 = \frac{1}{5}(d + 20 + 75 + 20 + 90) = \frac{1}{5}(d+205)[/tex]
with d standing for expenditure in December. Now solve for d:
[tex]250 = d + 205\\d = 45[/tex]
The student has to spend $45 to meet his goal.
By calculating the total money spent in the past 4 months and subtracting it from the mean spending goal for 5 months, the college student can spend $45 on music in December.
Explanation:The student's goal is to spend a mean of $50 a month towards music for the remaining 5 months of the year. Considering for the other 4 months his spending amounted to $20 , $75 , $20 , and $90, respectively, we add these amounts together, which results in $205. The total spending for 5 months should be $50 * 5 = $250 because of the mean spending goal. Therefore, the amount he can spend in December is $250 - $205 = $45.
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The city of Harmonville created a scatter plot to illustrate the number of robberies that have been reported there over the past several years.
Use linear regression to predict the number of reported robberies that occurred during 2006.
A.
1,000
B.
1,200
C.
1,400
D.
1,600
It looks like B (1,200) to me.
As can be clearly seen from the graph provided, the line of the linear regression passes through the point (2006, 1200). Thus, we can easily say, using linear regression, to predict the number of reported robberies that occurred during 2006 will be 1200.
Therefore, out of the given options, Option B is the correct option.
________________________________________________________
Linear Regression - Line of Best Fit Quick Check
---------------------------------------------------------------------------------------------------------
1. The city of Harmonville created a scatter plot to illustrate the number of robberies that have been reported there over the past several years. Use linear regression to predict the number of reported robberies that occurred during 2006.
Answer:
B. 1,200
----------------------------------------------------------------------------------------------------------
2. Find the equation of the line of best fit for the points (−4, 10), (−1, 5), (2, −1), (3, −6), and (5, −7).
Answer:
A. y = -2x + 2
----------------------------------------------------------------------------------------------------------
3. What is the significance of a correlation coefficient of -0.97?
Answer:
A. The points all lie very close to the line of best fir, and the line is decreasing.
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These are all 100% correct. You're Welcome!
________________________________________________________
Simplify the expression. 12−3 ∙ 1210 ∙ 120
To simplify the expression 12 - 3 * 12 * 10 * 120, follow the order of operations: Multiply 3 * 12, then 36 * 10, then 360 * 120, and finally subtract 12 from the result to get 43,188.
To simplify the expression 12 - 3 * 12 * 10 * 120, you need to follow the order of operations, which is Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right).
Multiply 3 * 12 = 36
Multiply 36 * 10 = 360
Multiply 360 * 120 = 43,200
Finally, subtract 12 from 43,200 to get 43,188.
Given a right triangle, if `tan θ = (3)/(4)`, what is the length of the side adjacent to `/_ theta` ?
SOH CAH TOA tells you ...
... Tan(θ) = Opposite/Adjacent
You have ...
... Tan(θ) = (3)/(4)
Matching parts of the two expressions, we see ...
... Adjacent = (4)
_____
In the context of this problem we might reasonably assume that the adjacent side length is 4 units. In any other context, the best we might say is that it is 4/3 times the length of the opposite side.
Point B ∈ AC . Find the length of segments ABand BC if AC = 20 cm and AB:BC = 3:2
AB:BC = 3:2
so AB=3/2BC
AB+BC=AC=20
substitute 3/2BC+BC=20
5/2BC=20
BC=2*20/5=8
AB=3/2*8=12
Apply a:b=c:d as a/b=c/d
AB:BC = 3:2 is AB/BC=3/2
AB=3/2*BC
AC=20=AB+BC
So 20=3/2*BC+BC
1 3/2BC=20
BC=8cm
AB=20-8=12cm
Use cofunctions of complementary angles to evaluate.
csc(19°) = sec
The value of csc(19°) evaluated using cofunctions of complementary angles is equal to sec(71°), since 19° and 71° are complementary angles, and the sine of one angle is equal to the cosine of its complement.
To evaluate csc(19°) using cofunctions of complementary angles, we recall that cosecant (csc) is the reciprocal of the sine function and that the secant (sec) function is the reciprocal of cosine. We also use the fact that complementary angles add up to 90 degrees. Thus, since 19° and 71° are complementary (19° + 71° = 90°), we have:
csc(19°) = 1/sin(19°)
Since sin(19°) is equal to cos(71°) (because sine of an angle is equal to the cosine of its complement), we can write this as:
csc(19°) = 1/cos(71°)
And since sec() = 1/cos(), we can conclude:
csc(19°) = sec(71°)
What is the simplified form of the expression? 12[5^2 ÷ (5^2 - 4^2) +4]
A. 96
B. 16
C. 148
D. 48
Answer:
81 1/3 . . . . . (none of the offered choices is appropriate)
Step-by-step explanation:
According to the order of operations, expressions inside parentheses are evaluated first.
= 12[5^2 ÷ (25 -16) +4]
= 12[5^2 ÷ 9 + 4]
Exponentials are evaluated before multiplication or division.
= 12[25 ÷ 9 + 4]
Division is performed before addition
= 12[(2 7/9) +4]
= 12[6 7/9]
And finally, the multiplication is performed
= 72 +84/9 = 72 +9 1/3
= 81 1/3
_____
A Google search box can be relied upon to apply the order of operations when evaluating an arithmetic expression.
== == == == ==
If the problem is ...
... 12[6^2 ÷ (25 -16) +4]
then the result is A. 96.
Osama starts with a population of 1,000 amoebas that increases 30% in size every hour for a number of hours, h. The expression 1,000(1+0.3)h finds the number of amoebas after h hours. Which statement about this expression is true?
A. It is the product of the initial population and the growth factor after h hours.
B. It is the sum of the initial population and the percent increase.
C. It is the initial population raised to the growth factor after h hours.
D. It is the sum of the initial population and the growth factor after h hours.
Answer: The correct option is A, itis the product of the initial population and the growth factor after h hours.
Explanation:
From the given information,
Initial population = 1000
Increasing rate or growth rate = 30% every hour.
No of population increase in every hour is,
[tex]1000\times \frac{30}{100} =1000\times 0.3[/tex]
Total population after h hours is,
[tex]1000(1+0.3)^h[/tex]
It is in the form of,
[tex]P(t)=P_0(t)(1+r)^t[/tex]
Where [tex]P_0(t)[/tex] is the initial population, r is increasing rate, t is time and [tex(1+r)^t[/tex] is the growth factor after time t.
In the above equation 1000 is the initial population and [tex](1+0.3)^h[/tex] is the growth factor after h hours. So the equation is product of of the initial population and the growth factor after h hours.
Therefore, the correct option is A, itis the product of the initial population and the growth factor after h hours.
Answer:
the answer should be A
Step-by-step explanation:
please show work
1. y = -2x
y = -4x + 10
2. y = 3 x
y = zx - 7
3. y = 6x + 22
y = -8
(1)
since both equations express y in terms of x, equate the right sides
- 2x = - 4x + 10 ( subtract 4x from both sides )
2x = 10 ( divide both sides by 2 )
x = 5
substitute x = 5 into y = - 2x → y = - 10
solution is : (x, y ) → (5, - 10 )
(2)
equate the right sides of both equations
3x = 2x - 7 ( subtract 2x from both sides )
x = - 7
substitute x = - 7 into y = 3x → y = - 21
solution is : (x, y) → (- 7, - 21)
(3)
substitute y = - 8 into the other equation
- 8 = 6x + 22 ( subtract 22 from both sides )
- 30 = 6x ( divide both sides by 6 )
x = - 5
solution is : (x, y ) → (- 5, - 8 )
*99 POINTS*The science club sponsor is ordering caps and shirts for the boys and girls in the science club.There are 45 science club members.If the caps come in packages of 3 amd the shirts come in packages of 5,what is the least number of packages of caps and shirts that will need to be ordered
for every member to get a shirt you would need to order 9 packages of shirt (because 5 times 9 is 45) and for caps the minimum to order would be 15 packages of caps
explanation
caps=3 per package
shirts=5 per package
divide 45 by and get 15
15 is the total packages of hats needed to order
for shirt 45 divided by 5 is 9
9 is the total packages of shirts needed to order
Answer:
15 pack of caps n 9 pack of shirts
Step-by-step explanation:
There are 45 science club members.
If the caps come in packages of 3, least no. of package of caps is 45/3=15
If the shirts come in packages of 5, least no. of package of caps is 45/5=9
i don't understand this. please help me, much appreciated !!
btw you don't have to do the questions but help me do the table, thank you !!
Apparently, the calculator at the link in your lesson is fully capable of giving you the necessary numbers. My own TI-84 work-alike gives me the account balances, but the rest of the numbers need to be figured.
In 30 years, there are 12×30 = 360 months, or 4×30 = 120 quarters. See the calculator results below. Your table can be filled in using the given information to find the contribution amount. The calculator gives the final balance. The interest amount is found by subtracting the contribution amount from the final balance.
[tex]\begin{array}{cccc}\text{Opt}&\text{Contributions}&\text{Int}&\text{Final Bal}\\1&360\cdot 25=9000&6250.50&15250.50\\2&120\cdot 75=9000&8467.04&17467.04\\3&1000&5489.17&6489.17\end{array}[/tex]
what is can someone help 7-3+4÷2×6?
There are no parentheses or exponents, so the Order of Operations tells you to start by performing division and multiplication left to right.
7-3+4÷2×6
= 7-3+2×6
= 7-3+12
After you have done that, you perform addition and subtraction left to right.
= 4 +12
= 16
______
A Google or Bing search box will evaluate expressions such as this according to the order of operations.
The constraints of a problem are listed below. What are the vertices of the feasible region?
x+3y≤6
4x+6y≥9
x≥0
y≥0
A) (-3/2,5/2), (9/4,0), (6,0)
B) (0,0), (0,3/2), (9/4,0)
C) (0,0), (0,2), (6,0)
D) (0,3/2), (0,2), (6,0), (9/4,0)
ANSWER
The correct answer is D
EXPLANATION
To graph the inequality
[tex]x+3y\le 6[/tex]
we first graph the corresponding equation,
[tex]x+3y= 6[/tex]
We then test the origin to determine which half-plane to shade the inequality,
[tex]0+3(0)\le 6[/tex]
[tex]0\le 6[/tex]
The above statement is true so we shade the lower half plane.
Next, we graph
[tex]4x+6y\ge 9[/tex]
By first graphing the corresponding equation,
[tex]4x+6y=9[/tex]
Then we test the origin again,
[tex]4(0)+6(0)\ge 9[/tex]
[tex]0\ge 9[/tex]
This statement is false, so we shade the upper half plane
Next, we graph,
[tex]x\ge 0[/tex]
Draw the vertical line [tex]x=0[/tex] and shade to the right.
Finally, we graph,
[tex]y\ge 0[/tex]
Draw the horizontal line [tex]y=0[/tex] and shade the upper region.
the intersection of all the shaded regions is called the feasible region.
The four vertices of the feasible region are
[tex](0,\frac{3}{2}),(0,2),(6,0),( \frac{9}{4},0)[/tex]
Hence the correct answer is D
Answer:
D)
Step-by-step explanation:
Source: Trust me bro
A projectile is launched upward with a velocity of 288 feet per second from the top of a 65 foot structure . What is the maximum height attained by the projectile ?
The projectile has a maximum height of 1353.991 feet.
How to determine the maximum height of a projectile
In this case we need to determine the maximum height reached by a projectile. Height equation of the projectile is now introduced:
y = y' + v' · t + 0.5 · g · t²
Where:
y' - Initial height, in feet.v' - Initial speed, in feet per second.t - Time, in seconds.g - Gravitational acceleration, in feet per square second.First, determine the height equation of the projectile:
y = 65 + 288 · t - 16.087 · t²
Second, graph the equation and find the maximum height by means of a graphing tool. (The maximum height is the y-coordinate of the vertex)
The maximum height of the projectile is 1353.991 feet.
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The maximum height attained by the projectile is calculated using the formula H = [tex](v^2) / (2g),[/tex] resulting in a height of 644.2 feet above the launch point. Adding the height of the structure, the projectile reaches a total maximum height of 709.2 feet above the ground.
To calculate the maximum height attained by a projectile, we need to consider the initial velocity, the height from which it is projected, and the acceleration due to gravity. The initial velocity is given as 288 feet per second, and the projectile is launched from a structure 65 feet high. The maximum height will be achieved when the projectile momentarily stops moving upwards before accelerating downwards due to gravity, which in the imperial system is approximately 32.2 feet per second squared in the negative direction.
Using the formula for vertical motion [tex]h = v^2 / (2g)[/tex] where h is the maximum height (from the point of launch), v is the initial vertical velocity, and g is the acceleration due to gravity, we can find the maximum height relative to the top of the structure. We then add the height of the structure to get the total maximum height above the ground.
The maximum height (H) from the launch point can be calculated using the formula: H = [tex](v^2) / (2g)[/tex]. Plugging in the values, we get H = (2882) / (2 * 32.2), which gives us H = 41,472 / 64.4 / 644.2 feet. To find the maximum height above the ground, we add the height of the structure: 644.2 feet + 65 feet = 709.2 feet.
Thus, the maximum height attained by the projectile is 709.2 feet above the ground.