MCQOPTIONS
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| 1. |
The chart below shows an expression evaluated for four different values of x. x x2+x+5 1 7 2 11 6 47 7 61 Josiah concluded that for all positive values of x, x2+x+5 produces a prime number. Which value of x serves as a counter example to prove Josiah’s conclusion false? |
| A. | 16 |
| B. | 21 |
| C. | 5 |
| D. | 11 |
| Answer» D. 11 | |