Write a positive or negative integer that describes the situation.Mr. Voss increased his speed by 12 miles per hour.
A. 12
B. -12
Answer: A
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Find the intersection.x + y + z = 8, x + y = 14
A. x = t, y = 14 - t, z = -6 B. x = -1, y = 1 + 14t, z = -6t C. x = -t, y = 14 + t, z = 6 D. x = -t, y = 14 + t, z = -6
Factor the expression by grouping terms. : 2x³ + x² - 6x - 3
What will be an ideal response?
Write the augmented matrix for the system. Do not solve the system. 6x + 2z = 10 4y + 7z = 26 9x + 3y + 7z = 32
A. 
B. 
C. 
D. 
A hemisphere-shaped dome of radius 40 ft is to be coated with a layer of rust-proofer before painting. Use differentials to estimate the amount of rust-proofer needed if the coat is to be 0.04 in. thick.
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Round the result to the nearest hundredth, if necessary.
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Hint: The volume of a hemisphere of radius r is 
.
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__________ ft3
Fill in the blank(s) with the appropriate word(s).