Answer:
a² - 5a - 36
Step-by-step explanation:
(a - 9)(a + 4)
each term in the second factor is multiplied by each term in the first factor, that is
a(a + 4) - 9(a + 4) ← distribute parenthesis
= a² + 4a - 9a - 36 ← collect like terms
= a² - 5a - 36
Answer:
Option B
176
Step-by-step explanation:
take 11 to the next side of the equation making the division multiplication getting us 16×11=176
3(4x-6)=2y
distribute
12x-18=2y
divide both sides by 2
6x-8=y
y=6x-8
Line1: y = -x + 2
Line2: y = 2x - 1
Solution: (1,1)
If we divide 15 by 42:
15 / 42 = 0.3571 or 35.71%
Since the level of significance is 0.05, an accuracy of 35.71%, based on the data, the results of the polygraph suggest that the polygraphs are not effective in distinguishing between truths and lies.