Find the indicated matrix.Let B = [-1 3 6 -3]. Find -4B.
A. [4 3 6 -3]
B. [-4 12 24 -12]
C. [-3 1 4 -5]
D. [4 -12 -24 12]
Answer: D
Mathematics
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Solve.What is the compression ratio of a gasoline engine whose expanded cylinder volume is 225 cu in. and whose compressed volume is 18 cu in.?
What will be an ideal response?
Mathematics
Write the number in trigonometric form. Let 0 ? ? < 2?.7i
A. 7(cos 0 + i sin 0)
B. 7(cos 
+ i sin 
)
C. 7(cos ? + i sin ?)
D. 7(cos 
+ i sin 
)
Mathematics
Perform the indicated operation. Write the result in the form a + bi.(2 - 4i)(2 + 6i)
A. 20 - 20i B. 28 + 4i C. 28 - 4i D. -20 - 20i
Mathematics
Find area of figure. Round to the nearest hundredth if necessary.
A. 576 ft2 B. 48 ft2 C. 1152 ft2 D. 96 ft2
Mathematics