Identify the numerator and the denominator of the fraction.
A.
| numerator: | 1 |
| denominator: | 1 |
B.
| numerator: | 18 |
| denominator: | 18 |
C.
| numerator: | 18 |
| denominator: | 1 |
D.
| numerator: | 1 |
| denominator: | 18 |
Answer: B
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Multiply.(x + 11)2
A. x + 121 B. x2 + 22x + 121 C. x2 + 121 D. 121x2 + 22x + 121
Express the number in decimal notation.7 × 10-7
A. 0.0000007 B. -700,000 C. 0.00000007 D. 0.000007
If possible, solve each system by an algebraic method (substitution or addition method). Otherwise, state that the problem has no solution or an infinite number of solutions.x = -yy + x = 6
A. (1, 1) B. Infinite number of solutions C. No solution D. (1, 5)
Solve. Round your answer to the nearest tenth, if necessary.An object is thrown upward from the top of a 
building with an initial velocity of 48 feet per second. The height, h, of the object after t seconds is given by the quadratic equation 
When will the object hit the ground?
A. In 5 seconds B. In 160 seconds C. In 2 seconds D. In 7 seconds