You can use the discriminant to solve this problem.
where a=6, b=-2, c=7
Plug it in
4-168=-164
Since it is negative there are no real solutions.
Answer: m = 2b/v
Step-by-step explanation:
158/4 as a mixed number in the simplest term is
<h3>Converting improper fractions to mixed number</h3>
The given fraction is 158/4
The number of times that 158 can be divided by 4 = 39
4 x 39 = 156
The remainder = 159 - 156
The remainder = 3
The mixed number is of the form:
Therefore, the mixed number is
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Answer:
Step-by-step explanation:
let us suppose that each call out of the 20 is indepent from each other. We have that the probability of having a fax message is 0.25. Let X the number of calls among the 20 that involve a fax message.
Then, the random variable X is distributed as a binomial random variable.
Recall the following for binomial random variables
and that the standar deviation is the square root of the variance. Then,
a)
b)
c) We want
We have that
Then, the desired probabilty is 0.041.
Answer: 5.14 cu in
Step-by-step explanation:
1/2 (π × d) + d, where d is the diameter of the semi
Perimeter = 1/2 (3.14 x 2) + 2
= 1/2 * 6.28 + 2
= 3.14 + 2