Answer:
<h3>6×+4×</h3><h3>10×-23</h3><h3>=9-13</h3><h3>=-4</h3>
The second one
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If you would like to know what is 16% of 25, you can calculate this using the following steps:
16% of 25 = 16% * 25 = 16/100 * 25 = 4
Result: 16% of 25 is 4, so the correct result would be d. 4.
Answer:
(identity has been verified)
Step-by-step explanation:
Verify the following identity:
(sec(A) + tan(A)) (1 - sin(A)) = cos(A)
Write secant as 1/cosine and tangent as sine/cosine:
(1 - sin(A)) (1/cos(A) + sin(A)/cos(A)) = ^?cos(A)
Put 1/cos(A) + sin(A)/cos(A) over the common denominator cos(A): 1/cos(A) + sin(A)/cos(A) = (sin(A) + 1)/cos(A):
(sin(A) + 1)/cos(A) (1 - sin(A)) = ^?cos(A)
Multiply both sides by cos(A):
(1 - sin(A)) (sin(A) + 1) = ^?cos(A)^2
(1 - sin(A)) (sin(A) + 1) = 1 - sin(A)^2:
1 - sin(A)^2 = ^?cos(A)^2
cos(A)^2 = 1 - sin(A)^2:
1 - sin(A)^2 = ^?1 - sin(A)^2
The left hand side and right hand side are identical:
Answer: (identity has been verified)
Answer:
FALSE
Step-by-step explanation:
A binomial distribution is a data distribution where there are only 2 possible outcomes A or B.
If probability p is assigned to outcome A, and probability q is assigned to outcome B, then q = 1 - p.
In a binomial distribution, the mean is np, where n is the size of the sample, and the skewness is
As you can see, if p is different to 0.5 a binomial distribution is always skewed, and the skewness is independent of the sample size. Moreover, the sign of the skew only depends on the sign of 1 -2p
In this problem, we could have named:
<u>Event A</u> : The interviewed answered “YES” to the question “Do you start the day with a cereal breakfast?”
<u>Event B</u>: The interviewed answered “NO” to the question “Do you start the day with a cereal breakfast?”
In this case p = 0.8 and the skewness would be negative, so the distribution would be left skewed.