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3 years ago

Find the circumference of each circle. round to the nearest tenth. use 3.14 for Pi.

Mathematics

1 answer:

alexandr1967 [171]3 years ago

3 0

Answer:

its is 15.7

Step-by-step explanation:

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A parking garage charges a $2.50 daily fee plus an hourly rate of $4.00. If you have $12.50 to pay for parking, how long can you

Vesnalui [34]

Step-by-step explanation:

First we need to set up an equation so

12.50=4x+2.50

Simplify each side by subtracting the initial fee of 2.50

10=4x

divide by 4 to isolate x

2.5=x

You can park for 2.5 hours with your budget

8 0

3 years ago

Yo can someone help me with this? (Links = report)

Troyanec [42]

Answer:

Step-by-step explanation:

12.6 divided by pi= 4.01

sqaure root of 4 is 2

7 0

3 years ago

Yoko will spend more than $29 on gifts. So far, she has spent $14. What are the possible additional amounts she will spend?

Sergeu [11.5K]

<u>Answer:</u>

$15 and above.

6 0

3 years ago

A random sample of n = 8 E-glass fiber test specimens of a certain type yielded a sample mean interfacial shear yield stress of

ANTONII [103]

Answer:

$32.9-2.365\frac{4.9}{\sqrt{8}}=28.80$

$32.9+2.365\frac{4.9}{\sqrt{8}}=37.00$

Step-by-step explanation:

Information given

$\bar X=32.9$ represent the sample mean for the sample

$\mu$ population mean (variable of interest)

s=4.9 represent the sample standard deviation

n=8 represent the sample size

Confidence interval

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

the degrees of freedom are given by:

$df=n-1=8-1=7$

Since the Confidence is 0.95 or 95%, the value of $\alpha=0.05$ and $\alpha/2 =0.025$ , and the critical value for this cae would be $t_{\alpha/2}=2.365$

Now we have everything in order to replace into formula (1):

$32.9-2.365\frac{4.9}{\sqrt{8}}=28.80$

$32.9+2.365\frac{4.9}{\sqrt{8}}=37.00$

6 0

3 years ago

Which of the following is the surface area of the right cylinder below?

Sunny_sXe [5.5K]

surface area of cylinder = 2*pi*r*h + 2*pi*r^2

= 2*8*14*pi = 224pi

+ 2*8^2*pi = 128 pi

224+128 = 352

so answer is 352 pi

4 0

3 years ago

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