Find the direction angles of the vector. Round to the nearest degree, if necessary.v = 6i - 4j + 12k
A. ? = 88°, ? = 91°, ? = 86°
B. ? = 62°, ? = 108°, ? = 19°
C. ? = 65°, ? = 107°, ? = 31°
D. ? = 63°, ? = 108°, ? = 23°
Answer: C
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Find the y-intercepts for the parabola whose equation is given. If the y-intercepts are irrational, round your answers to the nearest tenth.y = 2x2 - 19x + 42
A. y-intercept (06) B. y-intercept (0, 3.5) C. y-intercept (0, -42) D. y-intercept (0, 42)
Decide if the sets are equivalent to one another.{0} and {775}
A. Equivalent B. Not equivalent
Use Fundamental Identities and/or the Complementary Angle Theorem to find the exact value of the expression. Do not use a calculator.tan 55° - 
A. 1 B. 0 C. 55 D. undefined
Find the measure of the missing angle(s).
A. x = 100° y = 80° B. x = 110°y = 70° C. x = 10° y = 170° D. x = 80° y = 100°