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Mice21 [21]
3 years ago
5

I really need help asap show all work​

Mathematics
1 answer:
Triss [41]3 years ago
8 0

Note: Consider we need to find the factor form of the given expression by taking out the GCF.

Given:

The expression is:

-42k^3+24k^4+12k^5

To find:

The factor form of the given expression.

Solution:

We have,

-42k^3+24k^4+12k^5

It can be written as:

=6k^3(-7)+6k^3(4k)+6k^3(2k^2)

Taking out the greatest common factor (GCF), we get

=6k^3(-7+4k+2k^2)

Therefore, the factor form of the given expression is 6k^3(-7+4k+2k^2).

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Set up a proportion to solve for x in the following similar triangles,
fredd [130]

Answer:

x = 14

Step-by-step explanation:

Since the triangles are similar then corresponding sides are in proportion, that is

\frac{15}{x-4} = \frac{12}{8} ( cross- multiply )

12(x - 4) = 120 ( divide both sides by 12 )

x - 4 = 10 ( add 4 to both sides )

x = 14

6 0
3 years ago
Anyone wanna help me do this because I’m not understanding how this works
Vinil7 [7]

Answer:

its b .

Step-by-step explanation:

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Solve for h: v = pi squared multiplied by h h = V multiplied by pi over r squared h = V over pi r squared h = V plus pi r square
alexandr1967 [171]

Hello from MrBillDoesMath

Answer:

See below for steps.

Discussion:

As I understand the problem statement we have a cylinder of height h and radius r. The volume of the cylinder is given by the formaul:

V = (pi * r^2) h

Divide both sides by (pi * r^2):

V\ (pi * r^2)) =     ( (pi * r^2) * h ) \ ((pi * r^2)   =>

V\ (pi * r^2)  = 1 * h = h  as  (pi * r^2)   \ (pi * r^2))

Therefore, h =  V\ (pi * r^2)



Thank you,

Mr. B


7 0
3 years ago
Read 2 more answers
The following formula gives the area of a circle, A, dependent on its radius, r.
Firdavs [7]

Answer:

sqrt(A/pi), -sqrt(A/pi)

Step-by-step explanation:

A=pi*r^2

r^2=A/pi

r=sqrt(A/pi), -sqrt(A/pi)

5 0
3 years ago
The mean of your test scores is 83.75. Three of your scores are 71, 89, 100. What is your fourth test score
Margaret [11]

Answer:

75

Step-by-step explanation:

(71+89+100+x)/3=83.75

(83.75*4)

335-100-89-71=75

8 0
2 years ago
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