Write the expression in standard form.(7 + 3i) - (-9 + i)
A. 16 - 2i
B. -16 + 4i
C. 16 + 2i
D. -16 - 2i
Answer: C
Mathematics
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Perform the indicated operation. Write your result in a + bi form.
A. 
+ 
i
B. - 
- 
i
C. - 
- 
i
D. 
+ 
i
Mathematics
Rationalize the denominator.
A. 
B. 
C. 
D. 
Mathematics
Find the integral. 
A. 18 ln 
+ C
B. 
ln 
+ C
C. 
ln 
+ C
D. 19 ln 
+ C
Mathematics
Solve the problem.During the first seconds, the height h in feet of a baseball after t seconds is given by h = -16t2 + 125t + 3.0. Use the graph below to estimate the height of the ball after 4 seconds.
A. 503 feet B. 247 feet C. 203 feet D. 347 feet
Mathematics