Determine all values of x, (if any), at which the graph of the function has a horizontal tangent.
?
?
A. 
and 
B. 
C. 
and 
D. 
E. The graph has no horizontal tangents.
Answer: B
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Solve the problem.A building 150 feet tall casts a 70 foot long shadow. If a person stands at the end of the shadow and looks up to the top of the building, what is the angle of the person's eyes to the top of the building (to the nearest hundredth of a degree)? (Assume the person's eyes are 5 feet above ground level.)
A. 61.13° B. 28.87° C. 64.98° D. 64.23°
The diagonals of a parallelogram are 12 meters and 20 meters and intersect at an angle of 60°. Find the length of the longer side. ? __________ m
Fill in the blank(s) with the appropriate word(s).
Perform the indicated operation and express the number in decimal form (without exponents).
A. 9,000,000 B. 0.09 C. 0.009 D. 900,000
Find an equation of the line described. Through (0, -15), perpendicular to the x-axis
A. y = -15 B. y = 0 C. x = 0 D. x + y = -15