Factor the expression completely, if possible.100z2 - 49z4
A. (10z + 7z2)(10z - 7z2)
B. z2(10z + 7z2)(10z - 7z2)
C. z2(10 + 7z2)(10 - 7z2)
D. z2(10 + 7z)(10 - 7z)
Answer: D
Mathematics
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Evaluate the expression.(-7)2
A. -14 B. -49 C. 14 D. 49
Mathematics
Provide an appropriate response. Because calculators provide a tool that can accurately determine computations, discuss why you need to be able to do basic arithmetic operations without using one.
What will be an ideal response?
Mathematics
Perform the indicated operation. 
- 
A. 
B. - 
C. - 
D. 
Mathematics
Add. Write the answer in lowest terms as a mixed number.
A. 13
B. 12
C. 11
D. 12
Mathematics