Perform the indicated operations and simplify the result. Leave the answer in factored form.
+ 
A. 
B. 1
C. 
D. 
Answer: D
Mathematics
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Insert parentheses, if needed, to make the expression on the left equal to the number on the right.200 ÷ 10 - 3 + 2 = 15
A. 200 ÷ 10 - (3 + 2) = 15 B. 200 ÷ (10 - 3) + 2 = 15 C. 200 ÷ 10 - 3 + 2 = 15 D. (200 ÷ 10) - 3 + 2 = 15
Mathematics
Calculate the work done by the force F along the path C.F = xyi + 4j + 8xk; C: r(t) = cos 7ti + sin 7tj + tk, 0 ? t ? 
A. W = 
B. W = 
C. W = 0
D. W = 
Mathematics
Solve.Let f(x) = 3x2 + 5x - 5. Find x so that f(x) = 0.
A. 
B. 
C. 
D. 
Mathematics
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
During which two hour period did the temperature increase the most?
A. 10 a.m. to 11 a.m. B. 10 a.m. to 12 p.m. C. 12 p.m. to 2 p.m. D. 9 a.m. to 11 a.m.
Mathematics