Ask question

Ask question

All categories

2 years ago

14

Find the surface area of the cylinder and round to the nearest tenth. (It is recommended that you use the π button on your calcu

lator) (Note: Remember the radius is half of the diameter.)
If you are using a screen-reader, please consult your instructor for assistance.

1 answer:

elena-s [515]2 years ago

4 0

The surface area of the cylinder is 18.84 square feet

<h3>How to determine the surface area?</h3>

The given parameters are

Height, h = 2 ft

Diameter, d = 2 ft

The radius (r) is half of the diameter (d)

This is calculated as:

Radius = Diameter/2

So, we have:

r = d/2

Substitute 2 for d

r = 2/2

Evaluate the quotient i.e. divide 2 by 1

r = 1

The surface area is then calculated using the following formula

A = 2πr² + 2πrh

Substitute the given values in the above equation

So, we have:

A = 2 * 3.14 * 1^2 + 2 * 3.14 * 1 * 2

Evaluate the exponents

A = 2 * 3.14 * 1 + 2 * 3.14 * 1 * 2

Evaluate the products

A = 6.28 + 12.56

Evaluate the sum

A = 18.84

Hence, the surface area of the cylinder with the given height and radius is 18.84 square feet

Read more about surface area at:

brainly.com/question/2835293

#SPJ1

You might be interested in

A report states that the mean yearly salary offer for students graduating with a degree in accounting is $48,734. Suppose that a

DENIUS [597]

Solution :

To claim to be tested is whether "the mean salary is higher than 48,734".

i.e. μ > 48,734

Therefore the null and the alternative hypothesis are

$H_0 : \mu = 48,734$

and $H_1 : \mu > 48,734$

Here, n = 50

$\bar x = 49,830$

s = 3600

We take , α = 0.05

The test statistics t is given by

$t=\frac{\bar x - \mu}{\frac{s}{\sqrt n}}$

$t=\frac{49,830 - 48,734}{\frac{3600}{\sqrt 50}}$

t = 2.15

Now the ">" sign in the $H_1$ sign indicates that the right tailed test

Now degree of freedom, df = n - 1

= 50 - 1

= 49

Therefore, the p value = 0.02

The observed p value is less than α = 0.05, therefore we reject $H_0$ . Hence the mean salary that the accounting graduates are offered from the university is more than the average salary of 48,734 dollar.

3 0

3 years ago

Help me anyone someone dora diego spongbob AnYoNe just plz helppppppppppppp

alexira [117]

Answer:

30%

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

3y-4x=20 a linear function

Nadusha1986 [10]

If you are trying to get y by itself I shown my work.

8 0

3 years ago

The pen is 2 cm shorter than the scale. if the scale is 7 inches long. how long is the pen?

Makovka662 [10]

The pen is $15.78$ centimeters long when scale is $7$ inches long and pen is $2cm$ shorter then the scale.

How to find the how much long is the pen ?

Scale is $7 inches$ long and

We know that

$7inches=17.78cm$

And pen is $2cm$ shorten then the scale

So the length of the pen is

$=17.78-2\\=15.78cm$

$=6.21 inches$

Learn more about the length of the pen here :

brainly.com/question/28048541

#SPJ4

7 0

2 years ago

Can someone please help me with this again? 5-7<br><br>Thank you so much!

SIZIF [17.4K]

Hi there!

5.

Use the property:

$\frac{x^a}{x^b} = x^{a - b}$
Now, solve by variable.

$\frac{x^2}{x} = x^{2 - 1} = x\\\\\frac{y^5}{y^4} = y^{5 - 4} = y$

Rewrite:
$= x * y * z^3 = \boxed{\text{ D. } xyz^3}}$

6.

Solve the inside of the parenthesis, and each term separately.

Use the property:
$x^0 = 1$

$(7 + 3^2)^0 = 1 \\\\(8^0 + 3)^2 = (1 + 3)^2 = 4^2 = 16\\\\1 + 16 = \boxed{ \text{ C. } 17}$

7.

Solve like above:
$(4 + 2^2)^0 = 1\\\\(7^0 + 4)^{-3} = (1 + 4)^{-3} = 5^{-3}$

The negative exponent indicates taking the reciprocal. Using the property:
$x^{-a} = \frac{1}{x^a}$

Therefore:
$5^{-3} = \frac{1}{5^3} = \boxed{ \text{ D. }\frac{1}{125}}$

4 0

2 years ago