If s represents the displacement and t represents the time for an object moving with rectilinear motion according to the given function, find the instantaneous velocity for the given time.s = 3.1 + 0.2t + 1.5t2; t = 0.7
A. 1.6
B. 2.2
C. 3.2
D. 2.3
Answer: D
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Solve the problem. Use 3.14 for ?. Round your answer to the nearest hundredth.The discus is thrown from a circular region 8 feet 3 inches in diameter. What is the area of the circle (in square inches)?
A. 7693.8 in.2 B. 310.9 in.2 C. 3846.9 in.2 D. 30,775.1 in.2
Provide an appropriate response.The horizontal line that separates the numerator and the denominator is called the dividend.
A. True B. False
Find the values that make the equation true.
= 
A. x = 6; y = 4; z = 8 B. x = -8; y = 4; z = 6 C. x = 8; y = 6; z = 4 D. x = -8; y = -6; z = -4
State the name of the property illustrated.(x + 7) + [-(x + 7)] = 0
A. Commutative property of addition B. Identity property of multiplication C. Inverse property of addition D. Inverse property of multiplication