...A right angle congruent sides congruent angles parallel sides
Answer:
Probability that at least 490 do not result in birth defects = 0.1076
Step-by-step explanation:
Given - The proportion of U.S. births that result in a birth defect is approximately 1/33 according to the Centers for Disease Control and Prevention (CDC). A local hospital randomly selects five births and lets the random variable X count the number not resulting in a defect. Assume the births are independent.
To find - If 500 births were observed rather than only 5, what is the approximate probability that at least 490 do not result in birth defects
Proof -
Given that,
P(birth that result in a birth defect) = 1/33
P(birth that not result in a birth defect) = 1 - 1/33 = 32/33
Now,
Given that, n = 500
X = Number of birth that does not result in birth defects
Now,
P(X ≥ 490) =
= + .......+
= 0.04541 + ......+0.0000002079
= 0.1076
⇒Probability that at least 490 do not result in birth defects = 0.1076
(x-7)² = 36
The square root of both is √(x-7)² =√6²
x-7 = + or - 6
x-7 = 6 , then x = 13
x-7 = -6, then x = 1
So the values of x are 13 or 1
D because 2.5 times 4 is 10 and 2.5 times 8.5 is 21.25
Answer:
19.2 in. or 48000 feet (based on the scale)
Step-by-step explanation:
divide 6 by 2 and multiply by 100 (because that's the scale). You should get 300. Then, divide 3.2 by 2 and multiply by 100. You should get 160. Then, because the area would be 300*160, your answer is 48000