Find z1z2. Write your answer in standard polar form with the argument in radians.z1 = 2 + 2i, z2 = 
- i
A. 4
B. 4
C. 4
D. 4
Answer: D
Mathematics
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Use the table of values of f to estimate the limit.Let f(x) = 
, find 
f(x).
A. 
; limit = 1.20
B. 
; limit = ?
C. 
; limit = 4.0
D. 
; limit = 5.10
Mathematics
Verify the identity.cot2 x + csc2 x = 2 csc2 x - 1
What will be an ideal response?
Mathematics
Solve for the base. Round to the nearest cent.Part: $8.94 Rate of increase: 10%
A. $8.13 B. $9.83 C. $108.13 D. $8.94
Mathematics
Write the ratio in three different ways.the ratio of 2.9 to 29
A. 2.9 to 31.9, 2.9:31.9, 
B. 29 to 2.9, 29:2.9, 
C. 2.9 of 29, 2.9:29, 
D. 2.9 to 29, 2.9:29, 
Mathematics