Find v ? u.v = 6i - 9j and u = -7
i + 2j
A. -18 - 42
B. (6 - 7
)i - 7j
C. -18
+ 42
D. -18
i - 42j
Answer: A
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The life expectancy of a star is a power function of its mass. The value of the power in this function is 
. If the mass is increased by 43%, how is the life expectancy affected? Round your answer to two decimal places if necessary.
?
A. Life expectancy is increased by 40.89% B. Life expectancy is decreased by 40.89% C. Life expectancy is decreased by 59.11%. D. Life expectancy is increased by 59.11%.
Express the number in scientific notation.0.000315
A. 3.15 × 10-3 B. 3.15 × 104 C. 3.15 × 10-4 D. 3.15 × 10-5
Manufacturing equipment and financial capital are examples of
A. tangible resources that are difficult to see and quantify B. tangible resources that are easy to see and quantify C. intangible resources that are difficult to see and quantify D. intangible resources that are easy to see and quantity
Solve the compound inequality. Other than ?, use interval notation to express the solution set and graph the solution set on a number line.-4 ? -4x - 12 < 4
A. (-4, -2]
B. (-?, -4) or [-2, ?)
C. [-4, -2)
D. (-?, -4]