Perform the addition or subtraction.(9x5 - 9x4) + (3x5 - 4x4 + 4)
A. 12x5 - 13x4 + 4
B. 5x10
C. 4x - 13x5 + 6x4
D. 5x5 + 5x4 + 4x
Answer: A
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Find the LCM.6, 24, and 30
A. 720
B. 120
C.
| 108? |
D. 60
Solve the problem.The percent p of high school students who participate in sports at a public high school can be modeled by 10p - 24x = 196,where x is the number of years after 2010. Interpret the p intercept of the graph of this function.
A. In 2010, 19.6% of the high school students at this school participated in sports. B. In 2010, 28.8% of the high school students at this school participated in sports. C. The percent of high school students who participate in sports at this school is increasing 19.6 percent per year. D. The percent of high school students who participate in sports at this school is increasing 2.4 percent per year.
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Solve the problem.A projectile is fired from a height of 8.9 feet with an initial velocity of 156 ft/sec at an angle of 41° with the horizontal. The parametric equations for the path of the projectile are x = (156 cos 41°)t, and y = 8.9 + (156 sin 41°)t - 16t2,where x and y are in feet and t is in seconds. Find the height of the projectile after 3 seconds. Round your answer to the nearest tenth of a foot.
A. 267.9 ft B. 353.2 ft C. 171.9 ft D. 163 ft