Solve the problem.A spring on a horizontal surface can be stretched and held 0.5 m from its equilibrium position with a force of 40 N. How much work is done in stretching the spring 2 m from its equilibrium position?
A. 40 J
B. 160 J
C. 80 J
D. 320 J
Answer: B
Mathematics
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Solve the equation.
= 
for 0° ? ? ? 90°
A. {20°} B. {150°} C. {90°} D. {10°}
Mathematics
Solve the problem.Larry Thompson buys a $80,000 T-bill at a 5% discount for 13 weeks. Find the effective interest rate. (Assume 52 weeks per year.)
A. 1.91% B. 5.06% C. 1.27% D. 6.25%
Mathematics
Write the fraction or mixed number as a percent. Write the percent using decimals.
A. 5% B. 500% C. 0.5% D. 50%
Mathematics
Factor. Check by multiplying.5x - 20y
A. 5(x - 4y) B. 5(x - 20y) C. 4(5x - 5y) D. 5(x - y)
Mathematics