Solve the equation.1 = 3x + 7
A. 6
B. -9
C. -5
D. -2
Answer: D
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Find the average value of the function f over the given region.f(x, y) = 
; R = {(x, y): 1 ? x ? 5, 1 ? y ? 5}
A. 
B. 
C. 
D. 
Solve the problem.In the town of Chesapeake, the temperature during the month of February was always within 16 degrees of the average temperature which was 43 degrees Fahrenheit. Write an absolute value inequality that describes the possible values of T, a temperature in Chesapeake during the month of February. Solve the inequality.
A. 
? 43
Temperatures range from -27° F to 59° F.
B. 
? 43
Temperatures range from 27° F to 59° F.
C. 
? 16
Temperatures range from 27° F to 59° F.
D. 
? 16
Temperatures range from 43° F to 59° F.
Solve the problem.A company manufactures three types of cable. Cable A requires 3 black wires, 3 white wires, and 2 red wires. Cable B requires 1 black, 2 white, and 1 red. Cable C requires 2 black, 1 white, and 2 red. If 100 black wires, 110 white wires, and 90 red wires are required to complete an order, how many of each type of cable are in the order?
A. 10 cable A, 30 cable B, 93 cable C B. 10 cable A, 30 cable B, 20 cable C C. 20 cable A, 30 cable B, 10 cable C D. 10 cable A, 103 cable B, 20 cable C
Divide and express the result in standard form.
A. 
- 
i
B. 
- 
i
C. 
- 
i
D. 
+ 
i