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4 years ago

10

A singing competition is auditioning 31 contestants each hour for the next h hours. which equation can be used to find the total

number of contestants, c, that audition in h hours?

1 answer:

Pie4 years ago

6 0

The equation is 31h=c

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RIGHT ANSWER WILL BE BRAINLIEST!!

Juli2301 [7.4K]

Answer:

D. –20x + 48

Step-by-step explanation:

–4(5x – 12)

= (-4) (5x) - (-4)(12)

= -20x - (-48)

= -20x + 48

4 0

3 years ago

Read 2 more answers

What are the vertical and horizontal asymptotes for the function f (x) =<img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%5E%7B2%7D%

yaroslaw [1]

Answer:

B. vertical asymptote: x = 1

horizontal asymptote: y = 0

Step-by-step explanation:

1) Vertical asymptotes of a function are determined by what input of x makes the denominator equal 0. So, let's set the denominator, $x^3-1$ , equal to 0 and solve for x:

$x^3-1= 0\\x^3 = 1\\\sqrt[3]{x^3} = \sqrt[3]{1} \\x = 1$

Thus, the vertical asymptote is x = 1.

2) If the degree of the polynomial in the denominator is greater than the one on the top, the horizontal asymptote is automatically y = 0. Thus, the horizontal asymptote is y = 0.

8 0

3 years ago

Read 2 more answers

Write down a multiple of 4 between 29 and 37 ?<br><br>

Sauron [17]

Answer:

8 or 9

Step-by-step explanation:

4 times 8 equals 32, and 4 times 9 equals 36

8 0

3 years ago

Perform the following operations and write the answers in radical form.

strojnjashka [21]

Given:

Part A: $\sqrt{7}+\sqrt{3}+\sqrt{98}-\sqrt{18}$

Part B: $3 \sqrt{5}-3 \sqrt{11}+2 \sqrt{121}-3 \sqrt{90}$

To find:

The simplified radical form.

Solution:

Part A: $\sqrt{7}+\sqrt{3}+\sqrt{98}-\sqrt{18}$

$\sqrt{98}=\sqrt{7^2 \times 2} =7 \sqrt{2}$

$\sqrt{18}=\sqrt{3^2 \times 2} =3 \sqrt{2}$

Substitute these in the given expression.

$\sqrt{7}+\sqrt{3}+\sqrt{98}-\sqrt{18}=\sqrt{7}+\sqrt{3}+7\sqrt{ 2}-3\sqrt{ 2}$

Add or subtract the coefficient of same radical.

$=\sqrt{7}+\sqrt{3}+(7-3)\sqrt{ 2}$

$=\sqrt{7}+\sqrt{3}+4\sqrt{ 2}$

Part B: $3 \sqrt{5}-3 \sqrt{11}+2 \sqrt{121}-3 \sqrt{90}$

$2 \sqrt{121}=2\sqrt{11^2}$

$=2\times 11$

= 22

$3 \sqrt{90}=3\sqrt{3^2 \times 10}$

$=3\times 3 \sqrt{10}$

$=9 \sqrt{10}$

Substitute these in the given expression.

$3 \sqrt{5}-3 \sqrt{11}+2 \sqrt{121}-3 \sqrt{90}=3 \sqrt{5}-3 \sqrt{11}+22-9 \sqrt{10}$

8 0

3 years ago

A textbook search committee is considering 19 books for possible adoption. The committee has decided to select 7 of the 19 for f

spin [16.1K]

It can be done in 50388 ways

Step-by-step explanation:

When the selection has to be made without order, combinations are used.

The formula for combination is:

$C(n,r) =\frac{n!}{r!(n-r)!}$

Here

Total books = n =19

Books to be chosen = r = 7

Putting the values

$C(19,7) = \frac{19!}{7!(19-7)!}\\\\=\frac{19!}{7!12!}\\\\=50388\ ways$

It can be done in 50388 ways

Keywords: Combination, selection

Learn more about combinations at:

#LearnwithBrainly

8 0

3 years ago