Find the perimeter. Use 3.14 for ? when needed.
A. 9.14 in.
B. 11.14 in.
C. 14.28 in.
D. 12.28 in.
Answer: A
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Solve the problem.Hooke's law is applicable to idealized (linear) springs that are not stretched or compressed too far. Consider a nonlinear spring whose restoring force is given by F(x) = 15x - 0.3x3, for |x| ? 8. How much work is done in compressing the spring from its equilibrium position (x = 0) to x = -1.5? Round to two decimal places when appropriate.
A. 16.5 J B. 32.23 J C. 345.6 J D. 172.8 J
Factor out the greatest common factor.7y + 21
A. 7y B. 21 C. 7(y + 3) D. no common factor (except 1)
Solve the problem.A set of chairs costs $444. The sales tax is $26.64. What is the sales tax rate and what is the total price paid?
A. 7%, $470.64 B. 0.6%, $470.64 C. 6%, $470.64 D. 8%, $470.64
Graph the equation.2x + 3y - 10 = 0
A. 
B. 
C. 
D. 