Write the equation in its equivalent exponential form.log381 = x
A. x3 = 81
B. 81x = 3
C. 813 = x
D. 3x = 81
Answer: D
Mathematics
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Find the sum of the series.x5 - x7+ x8 - x4 + ...
A. 
B. 
C. 
D. 
Mathematics
Find the probability.A digit is chosen randomly from the digits 0 through 9 and then 7 is added to the digit and the sum recorded. Find the probability that the sum is less than 9.
A. 
B. 
C. 
D. 
Mathematics
Identify the degree of the polynomial and list its coefficients.8x5 - 5x3 - 2x2 + 5
A. degree: 8 coefficients: -5, -2, 5 B. degree: 5 coefficients: 8, 5, 2, 5 C. degree: 11 coefficients: 8, -5, -2, 5 D. degree: 5 coefficients: 8, -5, -2, 5
Mathematics
Simplify.-13 + (5 ? 2 + 30) ÷ 5
A. 3 B. 5 C. 1 D. -5
Mathematics