Write the expression in standard form.4i + (-3 - i)
A. 3 - 3i
B. 3 - 5i
C. -3 + 5i
D. -3 + 3i
Answer: D
Mathematics
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Find the product.(3a)(7a2)
A. 3a + 7a2 B. 21a3 C. 10a3 D. 21a4
Mathematics
Evaluate.5121/3
A. 8 B. 24 C. 12,288 D. 4096
Mathematics
Graph the hyperbola.36y2 = 4x2 + 144
A. 
B. 
C. 
D. 
Mathematics
Suppose the lowest temperature recorded in Indianapolis, Indiana, was 
If x is the wind speed in miles per hour and 
, then the wind chill (in degrees Fahrenheit) for an air temperature of 
style="vertical-align:middle;" /> can be approximated by the function 
. At what rate is the wind chill changing when the wind speed is 50 mph? Round your answer to two decimal places.
A. 
B. 
C. 
D. 
E. 
Mathematics