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 = -x2 + 19x - 90
A. y-intercept (0, -9)
B. y-intercept (0, 90)
C. y-intercept (0, 9)
D. y-intercept (0, -90)
Answer: D
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Determine whether the pair of lines is parallel, perpendicular, or neither. 3x - 4y = 20 8x + 6y = 20
A. Parallel B. Perpendicular C. Neither
Use percents, percent equations, and/or percent proportions to solve the application.42.5% of undergraduate students at a university are men. If there are 2000 undergraduate students, how many female students are there?
A. 1150 females B. 1000 females C. 1170 females D. 850 females
Arrange in order from smallest to largest.0.051, 0.015, 0.011, 0.055
A. 0.011, 0.051, 0.015, 0.055 B. 0.011, 0.015, 0.051, 0.055 C. 0.055, 0.051, 0.015, 0.011 D. 0.011, 0.055, 0.015, 0.051
Write the vector v in the form ai + bj, given its magnitude 
and the angle ? it makes with the positive x-axis.
= 13, ? = 30°
A. v = 13
B. v = 13
C. v = 13
D. v = 13