Solve.The weight W of an object on the Moon varies directly as the weight E on earth. A person who weighs 174 lb on earth weighs 34.8 lb on the Moon. How much would a 115-lb person weigh on the Moon?
A. 0.2 lb
B. 323.8 lb
C. 575 lb
D. 23 lb
Answer: D
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Solve the problem.A share of stock loses 21% in value and then gains 21% . How does its ending value compare with its initial value?
A. More B. The same C. Less
Complete the identity.sec4 x + sec2 x tan2 x - 2 tan4 x = ?
A. tan2 x - 1 B. 3 sec4 x - 2 C. 4 sec4 x D. sec4 x + 2
List the symmetries of the given function, if there are any. Otherwise, state "No symmetry".f(x) = 7x4 + 5x - 3
A. x-axis B. x-axis, origin C. Origin D. No symmetry
Write an equation using the variable x to represent any unknown quantity. Do not solve the equation.A weatherman reports that since 6:00 am this morning the temperature has dropped by 
to the current temperature of 
Write an equation for which the solution is the temperature at 6:00 am.
A. x + 12 = 40 B. x - 12 = 40 C. x + 40 = 12 D. x - 40 = 12