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3 years ago

What is the correct classification of x2 + 15x?

Mathematics

2 answers:

Vesnalui [34]3 years ago

7 0

Isnt is 17x????
its easy

shusha [124]3 years ago

3 0

binomial

because it is a 2term equation, bi means 2.

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What is the measure of x?<br> a.144°<br> b.18°<br> c.72°<br> d.36°

otez555 [7]

The question is not completed
there is some numbers mising

7 0

3 years ago

3x+ (-5y)= 12 what are the values of a,b,& c?

IRISSAK [1]

Answer:

a=3

b=(-5)

c=12

........................

6 0

3 years ago

SOMEONE HELP?!! ASAP !! I’ll give brainliest!! Please and ty !!

dsp73

Answer:

$(\pi 4^2 (9))-(\pi 2^2 (9))$

and

$339.292 cm^3$

Step-by-step explanation:

This question is simple once you break it down.

Let's concentrate on the outer cylinder.

First, find the volume of the outer cylinder.

The volume of a cylinder is expressed as: $V = \pi r^2 h$

Gathering information from the diagram..

d = 8 cm

h = 9 cm

You can get the radius from the diameter by just dividing the diameter by 2.

$r = \frac{8}{2}=4$

r = 4

Plug everything into the volume equation.

$V = \pi 4^2 (9)$

Don't solve just yet!

Now, find the volume of the inner cylinder.

Do the exact same thing as you did for the outer cylinder.

d = 4 cm

h = 9 cm

$r = \frac{4}{2}=2$

r = 2

Plug everything into the volume equation..

$V = \pi 2^2 (9)$

The question asks for an expression to represent the volume of the large cylinder after the cylindrical hole is removed. This means you need to subtract the volume of the cylindrical hole from the volume for the large cylinder.

Again, the volume for the large cylinder is $V = \pi 4^2 (9)$ and the volume for the cylindrical hole is $V = \pi 2^2 (9)$

This means..

$(\pi 4^2 (9))-(\pi 2^2 (9))$

That is your answer to the first part of the question.

For the second part, just solve.

$(\pi 4^2 (9))-(\pi 2^2 (9))$

$(\pi*16*9)-(\pi*4*9)$

$(\pi*144)-(\pi*36)$

$144\pi-36\pi$

$108\pi$

$339.292$

Don't forget the units.

$339.292 cm^3$

Hope this helped you!

3 0

3 years ago

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14 - 2xy when x = -6 and y = 2.

Paraphin [41]

Answer:

$38$

Step-by-step explanation:

14 - 2xy when x = -6 and y = 2.

$14 - 2( - 6)(2) \\ 14 - 2 \times ( - 12) \\ 14 + 24 = 38$

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3 years ago

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Jarrett counted the number of times people sharpened their pencils in class for a week. He counted 13,8,8,11 and 7. Determine th

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Answer:

Step-by-step explanation:

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3 years ago

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