Write a quadratic equation in the form ax2 + bx + c = 0 that has the given numbers as solutions.-2, 9
A. x2 - 18x + 7 = 0
B. x2 + 7x - 18 = 0
C. x2 - 7x - 18 = 0
D. x2 - 18x - 7 = 0
Answer: C
Mathematics
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Find the indicated root and express the answer in standard form.Cube roots of 8i
A. 2i, - i, -
- i
B. -2i, - - i,
- i
C. 2i, + i, -
+ i
D. -2i, + i, -
+ i
Mathematics
Express the sum using summation notation. Use a lower limit of summation not necessarily 1 and k for the index of summation.11 + 14 + 17 + 20 + . . . + 35
A.
B.
C.
D.
Mathematics
Solve the equation.4-x =
A.
B. {-2}
C.
D. {2}
Mathematics
Write the expression in lowest terms.
A. 3k2 B. 10 C. 10k2 D. 3k
Mathematics