The answer is 15 which is letter D
Answer:
<em>= 4a + 11</em>
Step-by-step explanation:
a+7+3a+4
Combine Like Terms:
= a + 7 + 3a + 4
= (a + 3a) + (7 + 4)
<em>= 4a + 11
</em>
9514 1404 393
Answer:
B. x = -6, x = 4
Step-by-step explanation:
The constant on the left wants to be 1, the square of half the x-coefficient. We can get it to be that value by adding 8 to the equation.
x² +2x +1 = 25
(x +1)² = 25 . . . . . . . rewrite the left side as a square
x +1 = ±√25 = ±5 . . . . take the square root
x = -1 ±5 . . . . . . . . . subtract 1
x = -6 or x = 4
<span>The event definition that corresponds to exactly one outcome of the experiment is that both numbers are 5s.</span>
