Express the number in scientific notation.870,000
A. 8.7 × 105
B. 8.7 × 104
C. 8.7 × 10-4
D. 8.7 × 10-5
Answer: A
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Multiply and simplify. Assume that all variables in a radicand represent positive real numbers.
? 
A. 4
B. x
C. 4x
D. 4x2
Solve the equation.
= 
A. x = 32 B. x = 4 C. x = 128 D. x = 16
Solve the problem.The motion of a projectile that is fired at a 30° angle with the horizontal is given by x = v0
t, 
for t in 
Suppose a projectile is fired with an initial velocity of 350 feet per second at an angle of 30° with the horizontal. Find (a) the time when it strikes the ground and (b) the range (horizontal distance covered).
A. (a) 10.9 sec (b) 3315 ft B. (a) 5.5 sec (b) 1658 ft C. (a) 21.9 sec (b) 6631 ft D. (a) 18.9 sec (b) 3315 ft
Find the slope of the line containing the two given points.(-10, -12) and (-14, 18)
A. - 
B. - 
C. - 
D. 