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3 years ago

8

Frazer is training for a marathon. Last week he ran a total of 19.5 miles. This week he ran a total of 24.3 miles. What is the p

ercentage increase in distance?

1 answer:

Komok [63]3 years ago

7 0

Answer:

19.75%

Step-by-step explanation:

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Hellllllllllllllp. this scale drawing of a desktop

Kruka [31]

So the since the length of the longer side is 45inches we know that the longer table is 5 times as larger than the small desktop. And we know 6 x 5 = 30.
So 45x30= 1,350 so the answer is 1,350 square inches! :)

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3 years ago

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Help im being timed!!!!! What is the area of the shaded region?

Goshia [24]

Answer:

5.86cm^2

Step-by-step explanation:

area of square - area of circle

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9 - 3.1416

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4 years ago

A random sample of 500 army recruits has a mean height of 68 inches with a standard deviation of 2.5 inches. if a 95% confidence

Komok [63]

Answer:

c) 0.22

Step-by-step explanation:

<u>Explanation</u>:-

A random sample of 500 army recruits has a mean height of 68 inches with a standard deviation of 2.5 inches.

The sample size 'n' = 500

Given the mean of the sample = 68 inches

Given standard deviation = 2.5 inches

$Margin error = \frac{Z_{\alpha } S.D}{\sqrt{n} }$

The 95% of confidence interval ∝ = 1.96

$M.E = \frac{1.96 X 2.5}{\sqrt{500} }$

Margin of error = 0.2191 ≅0.22

<u>Conclusion</u>:-

The Margin of error at 95% of confidence intervals = 0.22

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3 years ago

Find the area of △DEF with vertices D(−4, −2), E(−1, −8), and F(−7, −8). The AREA of △DEF is ______ square units. *

prohojiy [21]

Answer:

If you plot these points you will see that the base is 6 (distance from E to F, count the squares).

The height will be 6 ( distance from line EF to D, again count the squares).

Using the Area formula you get A = 1/2 (6) (6) = 18

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3 years ago

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leonid [27]

Answer:

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Step-by-step explanation:

We have to choose a number between 0 ad 10 and has to be odd to be base say 3

And even number between 0 ad 10 to be exponent say 4.

So the exponential expression will be : $e\frac{4}{3}$

According to the information given above expression is the required expression.

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3 years ago