Answer:
Step-by-step explanation:
Given that despite a series of quality checks by a company that makes television sets, there is a probability of 0.07% that a newly purchased television set does not work properly.
Mean of X = np = 175
Var = np(1-p) = 174.8775
Std dev = 13.224
X is N(175, 13.224(
With continuity correction required prob
= P(X<200) = P(X<200.5)
= 0.973091
Using binomial
P(X<200) = 0.9659
F(x) =
2x² - 8x + 7=2(x²-4x) + 7
We are going to use formula a²-2ab+b² = (a-b)² to complete the square.
f(x)= 2(x² -2*2x+2²-2²)+7
f(x)=2(x² -2*2x+2²) -2*2² +7
f(x)=2(x-2)²- 1
Answer is D.
We can see that f(x) =
2x² - 8x + 7 and f(x)=
2(x-2)²- 1 are the same on the graph.
Answer:
yes
Step-by-step explanation:
if you distribute the 9 into the parenthesis you get 9y + 45. Therefore, both equations are equivalent seeing that they both equal to 9y + 45.