test week 7 math 110 76%docx.docx - Part 1 of 25 4.0 4.0...

Part 1 of 25 - 4.0/ 4.0 Points
Question 1 of 25
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Determine the number of x-intercepts of the function f(x) = - x
2
- 3x - 8.

A. Two x-intercepts

B. One x-intercept

C. No x-intercept
Part 2 of 25 - 4.0/ 4.0 Points
Question 2 of 25
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A 26-foot ladder is leaning against a house with the base of the ladder 10 feet from the house.
How high up the house does the ladder reach? Round to the nearest tenth of a foot.

Part 3 of 25 - 4.0/ 4.0 Points
Question 3 of 25
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The length of one leg of a right triangle is 5 feet and the hypotenuse is 13 feet. Find the length of
the other leg.

Part 4 of 25 - 4.0/ 4.0 Points
Question 4 of 25
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The lengths of the two legs of a right triangle are 12 feet and 35 feet. Find the length of the
hypotenuse.
The length of the hypotenuse is 37 feet.
Part 5 of 25 - 4.0/ 4.0 Points
Question 5 of 25
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Carrie and Brent leave home at the same time. Carrie drives due east at a rate of 40 mph, while
Brent drives due south at a rate of 60 mph. How far apart are they (to the nearest mile) after 2
hours.
They are 144 miles apart.
Part 6 of 25 - 0.0/ 4.0 Points
Question 6 of 25
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A 20 foot pole is supported by two wires that extend from the top of the pole to points that are

each 8 feet from the base of the pole. Find the total length of the two wires. Round to the nearest
tenth, if necessary.
The two wires, together, measure 43 feet.
Part 7 of 25 - 4.0/ 4.0 Points