Find the amplitude.y = -4 cos(3?x - 3)
A. 3?
B. ?
C. 4
D. -12
Answer: C
Mathematics
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Perform the indicated operation and simplify.
- 
A. 
B. 
C. 
D. 
Mathematics
Multiply, and then simplify if possible. Assume all variables represent positive real numbers.
(
+ 
)
A. 
+ 
B. 
C. 8
D. 7
+ 7
Mathematics
Approximate the number using a calculator. Round your answer to three decimal places.e-2.1
A. 0.122 B. -0.122 C. 0.422 D. -5.708
Mathematics
Provide an appropriate response.Can you set up a proportion to solve this problem? Alice is 10 years old. Her hair is 8 inches long. How long will her hair be when she is 20 years old?
What will be an ideal response?
Mathematics