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miskamm [114]
3 years ago
6

Jack knows the surface area of a cylinder and its radius. He wants to find the cylinder's height. He needs to rewrite the formul

a to find the cylinder's height (h) in terms of the cylinder’s surface area (A) and its radius (r). Which is the correct formula?
Mathematics
2 answers:
Sindrei [870]3 years ago
4 0
This formula should help you.

bagirrra123 [75]3 years ago
3 0

Answer:

h=\frac{A}{2\pi r} -r

Step-by-step explanation:

We know the formula for the surface area of a cylinder is:

A=2\pi r(r+h)

where;

A is the surface area of the cylinder

r is the radius of the cylinder

h is the height of the cylinder

Now, we have to rewrite the formula to find the cylinder's height (h)

So, we will isolate the variable 'h'

Dividing both sides by 2\pi r , we get

h=\frac{A}{2\pi r} -r

Thus, the formula for 'h' with respect to A and 'r' is h=\frac{A}{2\pi r} -r

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Answer:

P(x)=0.025x+100

Step-by-step explanation:

The 0.025 is 2.5% as a decimal. Then, the +100 is for the base pay amount Hailey receives.

8 0
3 years ago
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Which ordered pairs make the open sentence true? 3x+y<14 Select all the correct answers. (7, −7) (−1, 6) (3, 6) (4, −1) (6, 0
Jet001 [13]

Answer:

(4, - 1)

(-1, 6)

Step-by-step explanation:

Given the expression :

3x+y<14

Test the opprions to find out the true statement.

(7, - 7)

3(7) + (-7) < 14

21 - 7 < 14

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(-1, 6)

3(-1) + 6 < 14

3 + 6 < 14

9 < 14 ( true)

(3, 6)

3(3) + 6 < 14

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(4, - 1)

3(4) - 1 < 14

12 - 1 < 14 ( true)

(6,0)

3(6) + 0 < 14

18 < 14 ( not true)

4 0
3 years ago
In the past, the average age of employees of a large corporation has been 40 years. Recently, the company has been hiring older
earnstyle [38]

Answer:

Step-by-step explanation:

In the past, mean of age of employees

i.e. \mu = 40

Recently sample was taken

n = sample size = 60

Mean of sample = 45

Std dev of sample s = 16

H_0: \bar x = 40\\H_a: \bar x >40

(Right tailed test)

Since only population std deviation is known we can use t test only

Std error = \frac{s}{\sqrt{n} } \\=\frac{16}{\sqrt{61} } \\=2.049

Mean difference = 45-40 =5

Test statistic t=\frac{5}{2.049} \\=2.441

df = 60

p value =0.008739

Since p < 0.05 we reject null hypothesis

The mean age has increased.

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I need help plz.
viva [34]

Answer:

slope = \frac{1}{2}

Step-by-step explanation:

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m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 8, 0) and (x₂, y₂ ) = (4, 6) ← 2 points on the line

m = \frac{6-0}{4+8} = \frac{6}{12} = \frac{1}{2}

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If 4 clicks equals an inch in 300 feet,
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Answer: don’t know the answer but use this link I hope I can helps u

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Step-by-step explanation:

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