Simplify the expression. Assume that all variables are positive when they appear.
A. 1
B. 
C. 
D. 
Answer: C
Mathematics
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Provide an appropriate response.Consider the arrangements of the letters in the word ALGEBRA. Is this a combination, a permutation, or neither?
A. Permutation B. Combination C. Neither
Mathematics
Solve the equation.16 + 17 + x = 10 + 4
A. x = 15 B. x = -27 C. x = 47 D. x = -19
Mathematics
Solve the problem.The rear wheel of a lawn tractor has a 13-inch radius. Find the angle (in radians) through which a wheel rotates in 21 seconds if the tractor is traveling at a speed of 14 miles per hour? Round your answer to one decimal place when necessary.
A. 398 radians B. 22.6 radians C. 1,432,910.8 radians D. 152.5 radians
Mathematics
Find the sum, if it exists, of the terms of the infinite geometric sequence.a1 = 5, r = - 
A. 
B. 
C. 
D. Does not exist
Mathematics