3 years ago

What is the answer

Mathematics

1 answer:

aleksandrvk [35]3 years ago

5 0

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If it costs $75,000 to put on an event and total revenue is $135,000, how much profit did the concert bring in

Nat2105 [25]

$135,000 - $75,000 = $60,000

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3 years ago

A cone with height h and radius r has volume V = 13πr^2h. If the cone has a height of 6 in. and volume V = 8πx^2 + 24πx + 18π, w

torisob [31]

ANSWER

$r = x - \frac{3}{2}$

EXPLANATION

The volume of the cone is

$V=8\pi \: {x}^{2} + 24\pi \: x + 18\pi$

The height of the is 6 inches.

We put the values into the volume of cone to get.

$8\pi \: {x}^{2} + 24\pi \: x + 18\pi = \frac{1}{3} \times \pi \: {r}^{2} \times 6$

$8\pi \: {x}^{2} + 24\pi \: x + 18\pi = 2 \pi \: {r}^{2}$

Divide through by 2π.

$4 {x}^{2} + 12x + 9 = {r}^{2}$

The expression on the LHS is a perfect square trinomial.

$( {x - \frac{3}{2} })^{2} = {r}^{2}$

$r = x - \frac{3}{2}$

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4 years ago

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A $60 sweater is on sale for 25% off. What is the sale price of the sweater?

Damm [24]

Answer:

$45

Step-by-step explanation:

60/4=15 15x3(75%)=45

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3 years ago

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I really need some help I don't understand ;-;

Olenka [21]

im sorry i dont know how to help

4 0

3 years ago

Solve fast please. its related to mathematics...

nataly862011 [7]

Answer:

The answer is 6

Step-by-step explanation:

$\lim_{x \to 4} \frac{x^3 - 64}{x^2 - 16} \\\\= \lim_{x \to 4} \frac{x^3 - 64}{(x + 4)(x - 4)} \\\\=\lim_{x \to 4} \frac{(x^2 + 4x + 16)(x - 4)}{(x + 4)(x - 4)} \\\\= \lim_{x \to 4} \frac{(x^2 + 4x + 16)}{(x + 4)} \\\\= (16 + 16 + 16) / 8\\= 48 / 8\\= 6$

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3 years ago

What is the answer ​

What is the answer