Write an expression that illustrates the quantity described.The actual speed of a boat that goes 15 miles per hour against a current of 2.5 miles per hour
A. 15 miles per hour
B. 17.5 miles per hour
C. 12.5 miles per hour
D. 2.5 miles per hour
Answer: C
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State the end behavior of the graph of f.f(x) = x2 + x3 + 4
A. Up on left side, down on right side B. Up on both sides C. Down on left side, up on right side D. Down on both sides
The two triangles below are similar. Find the missing lengths.
A. x = 28 B. x = 26 C. x = 20 D. x = 35
Solve the problem.A projectile is fired from a cliff 100 feet above the water at an inclination of 45° to the horizontal, with a muzzle velocity of 100 feet per second. The height h of the projectile above the water is given by 
where x is the horizontal distance of the projectile from the base of the cliff. How far from the base of the cliff is the height of the projectile a maximum?
A. 334.38 ft B. 156.25 ft C. 78.13 ft D. 178.13 ft
Solve the problem.A cup of coffee with temperature 103°F is placed in a freezer with temperature 0°F. After 5 minutes, the temperature of the coffee is 68.4°F. What will its temperature be 15 minutes after it is placed in the freezer? Round your answer to the nearest degree.
A. 28°F B. 23°F C. 25°F D. 30°F