Answer:
x<−8 or x>−4
Step-by-step explanation:
−x>8 or −x<4
We know either −x>8 or −x<4
−x>8(Possibility 1)
−x
−1
>
8
−1
(Divide both sides by -1)
x<−8
−x<4(Possibility 2)
−x
−1
<
4
−1
(Divide both sides by -1)
x>−4
When Completing the square you take the 'b' term and divide it by 2, then square it.
3/2, (3/2)^2 = 9/4
Letter C
Answer:
32 in^2.
Step-by-step explanation:
Area = area of the triangle + area of rectangle
= 1/2 * 4 * 6 + 4 * 5
= 12 + 20.
Answer:
(B) 0.2843
Step-by-step explanation:
Let d be the difference in proportions from Country X and Country Y who were first married between the ages of 18 and 32.
Then hypotheses are
: d=0.15
: d<0.15
Test statistic can be found using the equation
where
- p1 is the sample proportion of Country X (0.36)
- p2 is the sample proportion of Country Y (0.26)
- p is the pool proportion of p1 and p2 (
)
- n1 is the sample size of adults from Country X (60)
- n2 is the sample size of adults from Country Y (50)
Then
≈ 0.5646
p-value of test statistic is ≈ 0.2843
p-value states the probability that the difference in proportions between a random sample of 60 adults from Country X and a random sample of 50 adults from Country Y who were first married between the ages of 18 and 32 is at least 0.15