Graph the function using its vertex, axis of symmetry, and intercepts.f(x) = -x2 - 2x + 8
A. vertex (-1, -9)
intercepts (2, 0), (- 4, 0), (0, -8)
B. vertex (1, 9)
intercepts (-2, 0), (4, 0), (0, 8)
C. vertex (-1, 9)
intercepts (2, 0), (- 4, 0), (0, 8)
D. vertex (1, -9)
intercepts (-2, 0), (4, 0), (0, -8)
Answer: C
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Solve the problem.Assume it costs 25 cents to mail a letter weighing one ounce or less, and then 20 cents for each additional ounce or fraction of an ounce. Let L(x) be the cost of mailing a letter weighing x ounces. Graph y = L(x).
A. 
B. 
C. 
D. 
Solve the exponential equation. Leave the answer in exact form. Do not approximate.75x - 2 = 12
A. x = 
- log 2
B. x = log 12 - 5 log 7 + log 2
C. x = 
D. x = 
Simplify the expression. Round your answer to two decimal places, if necessary.
?
?
A. 7.72 B. 9.00 C. 6.00 D. 6.69 E. 81.00
Use the circle graph to solve the problem.The circle graph below gives the inventory of the men's department of a store.
What is the total inventory?
A. $66,000 B. $96,000 C. $94,200 D. $92,400