Round each number to the nearest hundred to estimate the sum or difference.856 + 124
A. 732
B. 700
C. 800
D. 1000
Answer: D
Mathematics
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Find the product. Write the product in rectangular form, using exact values.[4 cis 120°] [5 cis 120°]
A. -10 - 10
i
B. -10
+ 10i
C. 10 + 10
i
D. 10
- 10i
Mathematics
Substitute the value(s) for the variable(s) and then evaluate.
2 ? c2; m = 2, c = 4
A. 2048 B. 1024 C. 80 D. 64
Mathematics
Solve the equation. Express radicals in simplest form.x2 = 0.49
A. {24.5} B. {-0.7, 0.7} C. {-8, 8} D. {0.7}
Mathematics
Perform the division.
A. z - 10
B. z + 10 - 
C. z - 10 + 
D. z + 10
Mathematics