Simplify the expression.
A. - 
B. 
C. 
D. 
Answer: D
You might also like to view...
Solve the problem. Unless stated otherwise, assume that the projectile flight is ideal, that the launch angle is measured from the horizontal, and that the projectile is launched from the origin over a horizontal surfaceAn ideal projectile is launched from the origin at an angle of ? radians to the horizontal and an initial speed of 
Find the position function r(t) for this projectile.
A. r(t) = (100t sin ?)i + (100t cos ? - 16t2)j B. r(t) = (100t cos ?)i + (100t sin ? - 16t2)j C. r(t) = (100t sin ? - 16t2)i + (100t cos ?)j D. r(t) = (100t cos ? - 32t2)i + (100t sin ?)j
Refer to the following normal curve, with mean ? and standard deviation ?.
The standard deviation ? =
A. 12 B. 24 C. 3 D. 6 E. none of these
Solve the problem.A weather forecaster predicts that the temperature will drop 3 degrees each hour for the next 4 hours. If the temperature is 7 degrees before the temperature starts falling, what is the temperature after the drop?
A. -12° B. -5° C. 12° D. 0°
Use substitution to determine whether the given ordered pair is a solution of the given equation.(2.7, 4.8); x2 + y2 = 25
A. Yes B. No