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3 years ago

WILL GIVE BRAINLIEST

Mathematics

1 answer:

svlad2 [7]3 years ago

7 0

Answer:

816.8

Step-by-step explanation:

For each rotation of the tire, the wheel axle moves forward by a distance equal to the circumference of the tire.

Here, that circumference is C = pi*d, where d is the wheel diameter:

C = pi(26 in) = 26 pi inches.

The distance covered in 10 rotations of the wheel is thus 10(26 pi inches) = 260 pi inches. To the nearest tenth, that's 816.8 inches.

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jonny [76]

Answer:11%

Step-by-step explanation:

Percentage decrease is gotten with thus formula.

Actual price - Old Price= New price

New price/Old Price * 100/1

From the above question.. $18= Old price , $20= New price

So 20-18 = 2(New Price)

2/18 *100 = 0.11 * 100 = 11%

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4 years ago

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2 years ago

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Answer:

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3 years ago

A researcher believes that 12% of a simple random sample of adults will be able to identify a Toyota Scion by brand and model na

DochEvi [55]

Answer: 650

Step-by-step explanation:

When prior estimate of population proportion is known , then the formula to find the required sample size is given by :-

$n=p(1-p)(\dfrac{z^*}{E})^2$

, where p= population proportion

E= margin of error

z* = Critical value.

Let p be the proportion of adults able to identify a Toyota Scion by brand and model name.

As per given , we have

p = 12%= 0.12

E= 2.5%=0.025

Critical value for 95% confidence interval : z* = 1.960 [By z-table ]

Then, the required sample size = $n=(0.12)(1-(0.12))(\dfrac{1.96}{0.025})^2$

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$n=(0.1056)(6146.56)$

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Thus , the required sample size = 650

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3 years ago

The equation of a line is 4x−3y=−24.<br><br> What is the x-intercept of the line?

Korolek [52]

x-intercept → y = 0

substitute to 4x - 3y = -24:

4x - 3(0) = -24

4x - 0 = -24

4x = -24 |divide both sides by 4

x = -6

8 0

3 years ago