Simplify. Write your answers in the form of a+bi, where a and b are real numbers.
A. 
+ 
i
B. 
- 
i
C. 
+ 
i
D. 
+ 
i
Answer: C
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The speed of sound in air changes with temperature. When the temperature is 39 degrees Fahrenheit, the speed of sound is 1095.2 feet per second. For each degree increase in temperature, the speed of sound increases by 1.1 feet per second.
?
A: Explain why the speed 
, in feet per second, is a linear function of the temperature 
, in degrees Fahrenheit.
?
B: Use a formula to express 
as a linear function of 
.
?
C: What temperature corresponds to a speed of sound of 1143.2 feet per second?
What will be an ideal response?
Express the area of the region bounded by the given line(s) and/or curve(s) as an iterated double integral.The curve 
and the lines 
and 
A. 
B. 
C. 
D. 
Divide.6,417,600 ÷ 200
A. 64,176 B. 96,264 C. 320,880 D. 32,088
If the function is one-to-one, find its inverse. If not, write "not one-to-one."{(19, 5), (10, -1), (-19, 7)}
A. not one-to-one B. {(5, 19), (-19, 10), (7, -1)} C. {(5, 19), (-1, 10), (7, -19)} D. {(19, -1), (19, 10), (7, -19)}