Use the discriminant to determine whether the equation has two rational solutions, one rational solution, two irrational solutions, or two nonreal complex solutions. Do not actually solve.1 + 7z2 = 2z
A. Two irrational solutions
B. One rational solution
C. Two nonreal complex solutions
D. Two rational solutions
Answer: C
Mathematics
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The following figure has volume as indicated. Find the value of x.V = 128
h = 6Base is a rectangle.(a pyramid)
A. 
B. 8
C. 5
D. 4
Mathematics
Perform the indicated operation. Write the answer in scientific notation.(4.4 × 10-5)(1.3 × 10-7)
A. 5.7 × 1012 B. 5.72 × 10-12 C. 5.72 × 1012 D. 5.72 × 10-2
Mathematics
Translate the sentence to an algebraic inequality.The score on a test was less than 82 and greater than 71.
A. 82 < x < 71 B. x > 71 C. x < 82 D. 71 < x < 82
Mathematics
Find the exact value of the expression.
A. -2
B. - 
C. -
D. - 
Mathematics