Find the determinant.
A. 18
B. -30
C. -18
D. 0
Answer: C
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Find the angle between u and v in radians.u = -3i - 5j, v = 3i + 5j + 3k
A. 1.59 B. -1.10 C. 2.67 D. 2.03
Solve the problem.A rectangular Persian carpet has a perimeter of 188 in. The length of the carpet is 28 inches more than the width. What are the dimensions of the carpet? (P = 2l + 2w)
A. 33 in., 61 in. B. 80 in., 108 in. C. 66 in., 94 in. D. 61 in., 89 in.
If y varies directly as x, write a general formula to describe the variation.y = 7 when x = 
A. y = 
x
B. y = x + 
C. y = 
x
D. y = 56x
Solve.To compute the annual property tax on a house in a certain city, you would multiply the house's assessed value by 0.2982307 and then round to the nearest cent. What is the tax on a house if its assessed value is $600,000?
A. $17,893.84 B. $778,938.42 C. $421,061.58 D. $178,938.42