Solve the problem.For the function f(x) = 4x + 
, solve f(x) = 24.
A. x = -5 or x = -1
B. x = 
C. x = 5 or x = 1
D. x = 5 or x = -1
Answer: C
Mathematics
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Solve the problem.Mardi received an inheritance of $50,000. She invested part at 8% and deposited the remainder in tax-free bonds at 9%. Her total annual income from the investments was $4100. Find the amount invested at 8%.
A. $40,000 B. $45,900 C. $20,000 D. $39,000
Mathematics
Use the graph to find a ? > 0 such that for all x, 0 < 
< ? ? 
< ?.
A. 0.25 B. -1 C. 0.5 D. 0.44
Mathematics
Find the product. Write the product in rectangular form, using exact values.[4(cos 150° + i sin 150°)] [6(cos 330° + i sin 330°)]
A. 12
+ 12i
B. 24i
C. 24
D. -12 + 12
i
Mathematics
Use the order of operations to simplify the expression.2 +
2- 
A. - 
B. 2
C. 
D. 
Mathematics