Perform the indicated operations and write the result in standard form.(
+ 
)(
- 
)
A. 7 - 3i
B. 7 - 6i
C. -17 - 3i
D. 7 + 6i
Answer: C
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Answer the question(s) based on the following situation: Over the last 80 years records have been kept of the annual rainfall in the Tasmanian desert. The distribution of annual rainfall is approximately normal and has no outliers. The minimum of 4.5 inches of rain occurred in 1952; the maximum of 11.7 inches of rain occurred in 1934.The third quartile of the rainfall distribution is approximately
A. 7.3 inches. B. 8.1 inches. C. 8.9 inches. D. 7 inches. E. none of these
Determine if matrix A is invertible.A = 
A. Invertible B. Not invertible
State whether the function is linear or quadratic.f(x) = 2x
A. Linear B. Quadratic
Find the slopes of the lines that are (a) parallel and (b) perpendicular to the line through the pair of points.(-3, -3) and (-4, -4)
A. 1; -1
B. 
; - 
C. 0; 0
D. -1; 1