Solve the problem.A formula used to determine the velocity v in feet per second of an object (neglecting air resistance) after it has fallen a certain height is 
where g is the acceleration due to gravity and h is the height the object has fallen. If the acceleration g due to gravity on Earth is approximately 32 feet per second, find the velocity of a bowling ball after it has fallen 20 feet. (Round to the nearest tenth.)
A. 1280 ft per sec
B. 35.8 ft per sec
C. 25.3 ft per sec
D. 6.3 ft per sec
Answer: B
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Simplify the expression using the order of operations.(5 - 42)2
A. -121 B. -6 C. 121 D. 9
Sketch by hand the graph of the function. Give the coordinates for the vertex.y = x2 + 5x + 6 
A. vertex: 
B. vertex: 
C. vertex: 
D. vertex: 
Solve the problem.Suppose f(x) = 29.4 + 1.2log (x + 1) models salinity of ocean water to depths of 
at a certain latitude. x is the depth in meters and f(x) is in grams of salt per kilogram of seawater. Approximate the salinity (to the nearest hundredth) when the depth is 77 meters.
A. 54.43 g/kg B. -27.13 g/kg C. 31.67 g/kg D. 56.83 g/kg
Determine whether the expression is a polynomial. If it is, state how many terms and variables the polynomial contains. Then state its degree.-6b - 4a - my
A. Yes; 3; 3; 2 B. Yes; 3; 4; 2 C. Yes; 3; 3; 1 D. No