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9.1.3 Review & Preview

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Last updated 3 months ago
12 questions
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In the diagram at right, DE is a midsegment of ΔABC. Homework Help ✎
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Question 3
3.

A regular hexagonal prism has a volume of 2546.13 cm^3and the base has an edge length of 14 cm. Find the height and surface area of the prism. Round to the nearest hundredth.  Homework Help ✎

Question 4
4.

Are ΔEHF and ΔFGE congruent? If so, explain how you know. If not, explain why not.  Homework Help ✎

Question 5
5.

A sandwich shop delivers lunches by bicycle to nearby office buildings. Unfortunately, sometimes the delivery is made later than promised. A delay can occur either because food preparation took too long, or because the bicycle rider got lost. Last month the food preparation took too long or the rider got lost, 7% of the time. During the same month, the food preparation took longer than expected 11 times and the bicycle rider got lost 4 times. There were 200 deliveries made during the month. For a randomly selected delivery last month, find the probability that both the food preparation took too long and the rider got lost.  Homework Help ✎

Remember that the absolute value of a number is its positive value. For example, |−5|=5 and |5|=5. Use this understanding to solve the equations below, if possible. If there is no solution, explain how you know.  Homework Help ✎
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Question 9
9.

Cindy’s cylindrical paint bucket has a diameter of 12 inches and a height of 14.5 inches. If 1gallon≈231in.^3, how many gallons does her paint bucket hold?  Homework Help ✎

Question 10
10.

Write the equation of an exponential function that passes through the points (0,32) and (3,4). 9-39 HW eTool (Desmos)  Homework Help ✎

A cork in the shape of a cylinder has a radius of 2 cm, a height of 5 cm, and weighs 2.5 grams.  Homework Help ✎
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Question 12
12.

Question 1
1.

If the area of ΔABC is 96 square units, what is the area of ΔADE?

Question 2
2.

Explain how you know.

Question 6
6.

\left|x\right|=6

Question 7
7.

\left|x\right|=-2

Question 8
8.

\left|x+7\right|=10

Question 11
11.

What is the volume of the cork?

What is the cork’s density in grams per cubic centimeter? That is, how many grams of cork are there per cubic centimeter?