Write the phrase as an algebraic expression. Let x represent the unknown number.Ten subtracted from a number
A. 10 - x
B. x + 10
C. 
D. x - 10
Answer: D
Mathematics
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Mathematics
Evaluate.Find (g - f)(-2) given f(x) = x2 + 9x - 10 and g(x) = 100 - x2.
A. 120 B. 128 C. 92 D. -120
Mathematics
Write a system of equations to describe the problem situation. Use guess and check to solve the problem.
A boat travels 12 miles upstream to a fishing spot. The trip takes 1.2 hours. The return trip, downstream, takes 0.8 hour. Find the speed of the current, c. A) c = 2.0 mph B) c = 2.5 mph C) c = 2.8 mph D) c = 3.0 mph E) c = 3.5 mph
Mathematics
Prove the formula for all natural numbers n.
?
?
List the steps involved.
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Mathematics