Factor completely.x2 + 3xy - 10y2 = (x + 5y)( 
)
A. x + 2y
B. x + y
C. x - 2y
D. x - 2y2
Answer: C
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Find decimal notation for the number(s) in percent notation.
Favorite Sports Among a Group of Students
A. 12.0; 6.0; 1.5; 1.0; 5.7 B. 0.012; 0.006; 0.015; 0.01; 0.057 C. 0.12; 0.06; 0.15; 0.1; 0.57 D. 0.102; 0.006; 0.105; 0.01; 0.507
Solve the equation (x in radians and ? in degrees) for all exact solutions where appropriate. Round approximate answers in radians to four decimal places and approximate answers in degrees to the nearest tenth.cos2 x + 2 cos x = -1
A. {? + 2n?}
B. {2n?}
C. {n?}
D. 
Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.21x3 - 69x2 + 18x
A. x(3x - 3)(7x - 2) B. 3x(x + 3)(7x + 2) C. 3x(x - 3)(7x - 2) D. prime
Use the vertical line test to determine whether y is a function of x.
A. Yes B. No