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3 years ago

PLEASE ANSWER QUICKLY

Mathematics

1 answer:

TEA [102]3 years ago

3 0

Answer:

Step-by-step explanation:

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For every dollar increase in the price of music CDs sold by a record label, the demand for the CDs drops by 100. However, 4,000

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I think its D, I'm probably wrong.

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4 years ago

Given the position function s(t), s(t) = t2 + 3t + 1, where s is measured in meters and t is in seconds, find the velocity and a

stiks02 [169]

Answer:

11 m/s; 2 m/sec²

Step-by-step explanation:

v(t) = s'(t) = 2t +3

v(4) = 2·4 +3 = 11 . . . m/s

a(t) = v'(t) = 2 . . . . m/s²

Velocity and acceleration are 11 m/s and 2 m/s².

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3 years ago

A rectangle has a a perimeter of 72 ft. The length and width are scaled by a factor 3.5. What is the perimeter of the resulting

madam [21]

Answer:

252

Step-by-step explanation:

When it comes to perimeter, the ratio is the same. So, the scale factor of the perimeters in this problem is simply, 3.5. To find the new perimeter, multiply 3.5 by 72 to get 252. :)

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3 years ago

What is the prime factorization of 40?<br> 2 x 5<br> 2 x 20<br> 2x2x2x5<br> 2x2x4x5

goblinko [34]

Answer: 2*2*2*5

Explanation:

Prime factorization if 40 is 2*2*2*5

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3 years ago

Read 2 more answers

help me find the volume and area of this figure step by step pleasefyi the answer key my teacher gave me says that the surface a

alisha [4.7K]

The volume of the shape

We have a cylinder that is cut into two. Its external radius is 5ft, while its internal radius is 4ft.

External radius = internal radius + thickness

$\begin{gathered} \text{External radius = 4ft + 1ft } \\ =\text{ 5ft} \end{gathered}$

Internal radius = 4ft (given)

Recall that the volume(V) of a full cylinder is:

$V\text{ = }\pi r^2h$

Since the cylinder is cut into two, the volume(V) is:

$V\text{ = }\frac{\pi r^2h}{2}$

height (h) = 12ft (given)

The volume of the shape:

$\begin{gathered} =\text{ Volume of cylinder with a radius of 5ft - Volume of cylinder with a radius of 4ft} \\ =\text{ }\frac{\pi\text{ }\times5^2\text{ }\times\text{ 12}}{2}\text{ - }\frac{\pi\text{ }\times4^2\text{ }\times\text{ 12}}{2} \\ =\text{ 471.239 - }301.593 \\ =169.65ft^3 \end{gathered}$

5 0

1 year ago