The lengths of sides for a regular pentagon are 6 inches each. To the nearest tenth of an inch, find the length of the radius of the pentagon.
A. 4.1 in
B. 4.7 in
C. 4.9 in
D. 5.1 in
Answer: D
Mathematics
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Express as a single logarithm.(logaq - logar) + 4logap
A. loga
B. loga
C. logaqp4r
D. loga
Mathematics
Use graphing to factor f(x).f(x) = 
x3 + 
x2 + 
x - 
A. (x + 1)(x - 2)(x - 4)
B. (x - 1)(x + 2)(x + 4)
C. 
(x + 1)(x - 2)(x - 4)
D. 
(x - 1)(x + 2)(x + 4)
Mathematics
Solve by the substitution method.-7x + 99 = 6y3x - 2y = 15
A. {(8, 7)} B. {(9, 6)} C. {(x, y)|3x - 2y = 15} D. ?
Mathematics
Determine whether the sequence is arithmetic. If the sequence is arithmetic, determine the first term a and common difference d.5, -15, 45, -135, 405, . . .
A. Arithmetic; a = 5, d = -10 B. Not arithmetic
Mathematics