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3 years ago

6

A ladder leans against the side of a house. The angle of elevation of the ladder is 70 when the bottom of the ladder is 14ft fro

m the side of the house. Find the length of the ladder. Round your answer to the nearest tenth.

1 answer:

s2008m [1.1K]3 years ago

8 0

Check the picture below.

make sure your calculator is in Degree mode.

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We know that the diameter of a circle is 2 times the radius.

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Which quadratic function in vertex form can be represented by the graph that has a vertex at (3, -7) and passes through the poin

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1 year ago

I need an answer fast!! Somebody please help me??

Savatey [412]

The answer is 20x^18 which is the last option.

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3 years ago

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In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency gives data on 1170 vehicles. There are a

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Answer:

a. 19.68 miles per gallon.

b. 26.32 miles per gallon.

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Standard deviation (σ) = 4.9 mpg

In a normal distribution, for any length X, the z-score is determined by the following expression:

$z=\frac{X-\mu}{\sigma}$

In a normal distribution, the 25th percentile (first quartile) of a normal distribution has a corresponding z-score of z = -0.677 and the 75th percentile has a corresponding z-score of z = 0.677

a. The first quartile of the distribution of gas mileage is

$-0.677=\frac{X_{25}-23}{4.9}\\X_{25}=19.68\ mpg$

19.68 miles per gallon.

b. The third quartile of the distribution of gas mileage is

$0.677=\frac{X_{25}-23}{4.9}\\X_{25}=26.32\ mpg$

26.32 miles per gallon.

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3 years ago

The function f(x)=-10(x)(x-4) represents the approximate height of a projectile launch on the ground into the air as a function

ELEN [110]

Answer:

4 seconds.

Step-by-step explanation:

The function f(x)=-10(x)(x-4) ........ (1), represents the approximate height of a projectile launch on the ground into the air as a function of time in seconds x.

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Hence, 10x(x - 4) = 0

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3 years ago

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