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3 years ago

HELP ME ASAP!!!!!!!!!!

Mathematics

2 answers:

Genrish500 [490]3 years ago

5 0

Answer:

2x - 9

Step-by-step explanation:

let the number be x then multiplying by 2 is 2x , so

2x - 9 ← algebraic expression

MAXImum [283]3 years ago

4 0

Answer: x(2) -9

I’m pretty sure that it

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Give the digits in the ones place and the hundredths place.<br> 81.23

astra-53 [7]

Answer: 1 is in the ones place and 3 is in the hundredths place

If you want in expanded form

Ones=1.00

Hundredth=3

<h2>Please mark me as brainliest by clicking on the crown at the bottom of my answer after someone else answers.</h2>

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3 years ago

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Carolyn paid a mechanic x dollars per hour for a 5 hour job plus $70 for parts. The total was $320. Which equation can be used t

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70+5x=320
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Item 16 A sphere has a radius of 8 centimeters. A second sphere has a radius of 2 centimeters. What is the difference of the vol

Zigmanuir [339]

Answer:

$672\pi \text{ cm}^3$ .

Step-by-step explanation:

We have been given that a sphere has a radius of 8 centimeters. A second sphere has a radius of 2 centimeters. We are asked to find the difference of the volumes of the spheres.

We will use volume formula of sphere to solve our given problem.

$\text{Volume of sphere}=\frac{4}{3}\pi r^3$ , where r is radius of sphere.

The difference of volumes would be volume of larger sphere minus volume of smaller sphere.

$\text{Difference of volumes}=\frac{4}{3}\pi(\text{8 cm})^3-\frac{4}{3}\pi(\text{2 cm})^3$

$\text{Difference of volumes}=\frac{4}{3}\pi(512)\text{ cm}^3-\frac{4}{3}\pi(8)\text{ cm}^3$

$\text{Difference of volumes}=\frac{4}{3}\pi(512-8)\text{ cm}^3$

$\text{Difference of volumes}=4\pi(168)\text{ cm}^3$

$\text{Difference of volumes}=672\pi\text{ cm}^3$

Therefore, the difference between volumes of the spheres is $672\pi \text{ cm}^3$ .

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4 years ago

Eddie is 7 years older than brian. if brian is x years old, then how old was eddie 11 years ago?

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(X+7)-11 aka Eddie was x-4 years old 11 years ago

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3 years ago

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Is the answer yes or no I give thanks

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Nope.................

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