Solve the equation by the method of your choice. Simplify irrational solutions, if possible.3x2 - 5x - 8 = 0
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Assume that variables represent positive real numbers. Replace the radical with rational exponents.
A. (x + y)6/5 B. (x + y)5/6 C. (x5 + y5)1/6 D. (x6 + y6)1/5
Mathematics
Evaluate the logarithm.log8
A. -64 B. 3 C. -3 D. 64
Mathematics
Graph the rational function and find the intercepts.f(x) = 
A. x-intercept: 0. y-intercept: 0.
B. x-intercept: 4. y-intercept: 0.
C. x-intercept: 0. y-intercept: 1.
D. x-intercept: 0. y-intercept: 0.
Mathematics
Write the phrase as an algebraic expression and simplify if possible. Let x represent the unknown number.Ten times the sum of a number and -15.
A. 10x - (-15) B. 10+ x + (-15) C. 10x + (-15) D. 10(x + (-15))
Mathematics