3 years ago

The movie theatre is running a special for the

Mathematics

2 answers:

Artyom0805 [142]3 years ago

8 0

Answer:

12$

Step-by-step explanation:

20 - 8 = $12

Darina [25.2K]3 years ago

4 0

Answer:

Step-by-step explanation:

20 - 8 = 12 left over......

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Hey yall sorry that im pretty stupid but can you answer this whats 9x = 7 ( x + 2)

Yuliya22 [10]

Answer:

x=7

Step-by-step explanation:

1. Distribute

2. Subtract 7x from both sides of the equation

3. Simplify

4. Divide both sides of the equation by the same term

5. Simplify

Answer: x=7

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3 years ago

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In order to estimate the mean amount of time computer users spend on the internet each month, how many computer users must be su

prisoha [69]

Answer:

1568

Step-by-step explanation:

The computation of the minimum sample size is shown below:

Given that

Error E = 11

The population standard deviation $\sigma$ =217

Confidence level 1-α = 95%

Now following formula should be used

n > (Zalpha ÷ 2 × sigma ÷ E)^2

As we know that

Zalpha ÷ 2= 1.96

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3 years ago

A circle has a circumference of 42 in.what is the area of the circle

Solnce55 [7]

Answer:

140.37 in²

Step-by-step explanation:

C = 2πr

42 = 2πr

21 = πr

r = 21/π

A = πr²

A = π × (21/π)²

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3 years ago

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What is tje answer 3m - m

Hitman42 [59]

The answer is 2m because it is like if you had 3 mangoes and you eat one you would have 2 mangoes.

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3 years ago

PLEASE HELP MEEEEE!!!!!!!!!!! Solve this quadratic equation. x 2 + 5x + 3 = 0

andreev551 [17]

Answer:

$x1=\frac{-5+\sqrt{13}}{2}\\ \\x2=\frac{-5-\sqrt{13}}{2}$

Step-by-step explanation:

x² + 5x + 3 = 0

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x₁ = (- 5 + √13)/2

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3 years ago