Solve the problem.A sign is in the shape of an isosceles triangle. The third side is 7 inches less than the length of each equal side. Find the length of one equal side if the perimeter is 41 inches.
A. 19 in.
B. 13 in.
C. 9 in.
D. 16 in.
Answer: D
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Solve. Answer with a complete sentence.A spider covered a distance of 25.37 meters in 5.9 minutes. What was the spider's average rate of speed?
A. The spider's average rate of speed was 4.3 meters per minute. B. The spider's average rate of speed was 43 meters per minute. C. The spider's average rate of speed was 0.43 meters per minute. D. The spider's average rate of speed was 5.3 meters per minute.
Provide an appropriate response.Arrange the polynomial in descending order: x6 + 5x4 - 3x2
A. x6 + 5x4 - 3x2 B. x6 - 3x2 + 5x4 C. 5x4 + x6 - 3x2 D. 5x4 - 3x2 + x6
Solve the problem.On a Touch Tone phone, each button produces a unique sound. The sound produced is the sum of two tones and is given by 
and y = sin (2?ht), where l and h are the low and high frequencies (in hertz = Hz) associated with that button. 
The tone produced is thus given by y = sin (2?lt) + sin (2?ht). Write an expression that models the tone by pressing the "5" button as a product of sines and cosines.
A. y = 2 sin (2247?t) cos (707?t) B. y = 2 sin (707?t) cos (2247?t) C. y = 2 sin (566?t) cos (2106?t) D. y = 2 sin (2106?t) cos (566?t)
Solve.Madison, Lionel, and Steven enter a 51.4-mile bicycle team relay race. They complete the course in 2.27 hours. What was their average speed on the course? (Round to the nearest tenth.)
A. 2.3 mi/hr B. 0.0 mi/hr C. 22.6 mi/hr D. 0.4 mi/hr