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3 years ago

I don’t need to show work but it would help :)

Mathematics

1 answer:

Citrus2011 [14]3 years ago

3 0

Answer:

d. (73.9 in^2)

Step-by-step explanation:

I suppose that 9.7 in is the diameter.

R=D/2=9.7/2=4.8in

A=π*(R^2)=3.14*(4.8)^2=73.9 in^2

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A certain type of car has room for 4 passengers.

USPshnik [31]

The equation relating the number of cars to the number of passengers is p = 4n

Solution:

Given that certain type of car has room for 4 passengers

To find: write an equation relating the number of cars to the number of passengers

Let "n" be the number of cars

Let "p" be the number of passengers

From given information,

Car has room for 4 passengers. Therefore, we can frame,

number of passengers = 4 ( number of cars )

p = 4 (n)

p = 4n

Thus the equation relating the number of cars to the number of passengers is p = 4n

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3 years ago

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A computer store has 75 printers of which 35 are laser printers and 40 are ink jet printers. if a group of 10 printers is chosen

JulijaS [17]

Your mean for this problem would be 4.7 and you variance would be 2.5

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3 years ago

In a study to determine the relationship between self esteem and eating, subjects had been randomly divided into two groups. One

Musya8 [376]

ANSWER:

The correct answer is

-This study is blind.

-This study is an experimental study.

STEP-BY-STEP EXPLANATION:

This study includes a controlled treatment (in this manner it is an investigation) and subjects didn't have a clue about the idea of the treatment so it is visually impaired.

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3 years ago

Leons older brother is 4 and 3/4 feet tall. Leon is 1/3 foot shorter than his brother .how tall is leon

Mandarinka [93]

Let

x------> height of Leon's older brother

y------> height of Leon

Convert mixed number to an improper fraction

$4\frac{3}{4}\ ft=\frac{4*4+3}{4}= \frac{19}{4}\ ft$

we know that

$x=\frac{19}{4}\ ft$ -----> equation A

$y=x-\frac{1}{3}$ -----> equation B

substitute equation A in equation B

$y=\frac{19}{4}-\frac{1}{3}=\frac{53}{12}\ ft$

Convert to mixed number

$\frac{53}{12}=\frac{48}{12}+\frac{5}{12}=4\frac{5}{12}\ ft$

therefore

the answer is

$4\frac{5}{12}\ ft$

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3 years ago

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A farmer wants to increase the size of one of his square pens. The pen measures 10 feet on each side. The farmer plans to increa

Oxana [17]

Answer:

156 feet larger

Step-by-step explanation:

Alright so 160% of 10 is 16 , now we do 16x16 = 256

Now we do 10x10 to find the old square feet which is 100

256-100=156

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2 years ago