Solve the problem.Barry originally had 12
yards of canvas awning fabric. After making awnings for the Jackson family, he had 5
yards remaining. How many yards of fabric did he use on the Jackson's awnings?
A. 5
yd
B. 8
yd
C. 7
yd
D. 6
yd
Answer: D
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Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 6 
- 9
+ 4 
+ 4
A. 10 
- 5
B. 10 
- 5
C. 10 
- 5
D. 5
Verify that the equation is an identity.cos(x - y) - cos(x + y) = 2 sin x sin y
What will be an ideal response?
Solve the problem.The annual population density of a species of insect after n years is modeled by a sequence. Suppose that the initial density of insects is 692 with r = 1.9. Write a recursive sequence that describes this data, where an denotes the insect density during year n.Find the terms a1 , a2 , a3 , ...... until you are able to interpret the results.
A. The population density decreases by 10% per year. B. The population density decreases by 90% per year. C. The population density increases by 90% per year. D. The population density increases by 10% per year.
Solve the problem.The sum of the squares of two numbers is 10. The sum of the two numbers is 4. Find the two numbers.
A. 1 and 3 or -3 and -1 B. -3 and -1 C. -1 and 3 or -3 and 1 D. 1 and 3