Solve the equation.
+ 9 = 
A. - 
B. 
C. 
D. - 
Answer: D
Mathematics
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Solve the problem.An economist predicts that the buying power B(x) of a dollar x years from now will be given by the formula 
How much will today's dollar be worth in 4 years? Round the answer to the nearest cent.
A. $3.36 B. $3.20 C. $0.93 D. $0.50
Mathematics
Use differentiation to determine whether the integral formula is correct.
dx = - 
+ C
A. No B. Yes
Mathematics
Decide if the situation is a permutation or a combination and then answer the question.How many relay teams of 4 members can be chosen from a 9 member team to run in a relay race?
A. Combination; 504 B. Permutation; 36 C. Combination; 30 D. Permutation; 3024
Mathematics
Determine whether the given number is a solution of the equation.8x -10 = 14; x = 3
A. No B. Yes
Mathematics