Find the angle between u and v in radians.u = -5i - 4j, v = 3i + 6j + 2k
A. 2.02
B. 2.63
C. 1.59
D. -1.06
Answer: B
Mathematics
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Convert the measure to its alternate U.S. or metric form. Write improper fractions as mixed numbers for U.S. measures and as decimals for metric measures.Convert 34 inches to centimeters.
A. 30.6 centimeters B. 68 centimeters C. 13.6 centimeters D. 85 centimeters
Mathematics
Use a graphing calculator to solve the linear equation.7x + 3(-3x - 3) = -6 - 5x
A. {-1} B. {0} C. {1} D. {2}
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = - 
, ? < ? < 
Find cos 
.
A. - 
B. 
C. - 
D. 
Mathematics
Find the product of the complex number and its conjugate.-1 + 
i
A. -24 B. -4 C. 26 D. 6
Mathematics