Solve the equation.x(x - 30) = -225

A. {30}
B. {15}
C. {-15}
D. {15, -15}


Answer: B

Mathematics

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Perform the indicated operation.Add (6x + 4 + 5x3) to the sum of (6 + x2 + 2x) and 

A. 6x3 + x2 + 11x + 5 B. 6x3 + x2 + 11x + 10 C. 6x3 + 4x2 + 8x + 5 D. 7x3 + 11x + 5

Mathematics

Find the value of



a. 0
b. –0.7
c. –0.7
d. –0.6
e. 0.16

Mathematics

Solve the system by the substitution method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.

A. no solution; ? B. {(-6, 2)} C. {(-5, 1)} D. {(5, 2)}

Mathematics

Use the properties of logarithms to evaluate the expression.eln x41

A. x B. ln x41 C. ex41 D. x41

Mathematics