Answer:
y intercept = -2
x intercepts = -2,-1,1
Step-by-step explanation:
f(x) = x^3 + 2x^2 -x-2
Set this equation equal to zero to find the x intercepts.
Factoring by grouping
0 =x^3 -x +2x^2 -2
= x( x^2-1) +2(x^2-1)
Factoring out the (x^2-1)
0= (x^2-1) (x+2)
Factoring the first term using the difference of squares (a^2-b^2) = (a-b)(a+b)
0 = (x-1) (x+1) (x+2)
Using the zero product property
x-1 = 0 x+1 = 0 x+2 =0
x=1, x=-1 x=-2
The x intercepts are -2, -1, 1
To find the y intercepts, set x=0
y = x^3 + 2x^2 -x-2
y = 0 -2
y = -2
Answer:
your answer is +18
Step-by-step explanation:
In conducting a goodness of fit test, a requirement is that the expected frequency must be at least ten for each category.
<h3>What is a
goodness of fit test?</h3>
In relation to the statistical model, the test tells how well it fits a set of observations.
The measures of the goodness of fit summarize the discrepancy between observed values and the values expected under the model in question.
Also, when conducting a goodness of fit test, a requirement is that the expected frequency must be at least ten for each category.
Therefore, the Option B is correct,
Read more about goodness of fit test
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Just pay attention to the amount of stripes
The angles with one like equals the one with one, the angle with 2 equals , and so does the one with three
so, ABC will be equal to : MNP
hope this helps
Madison is in charge of buying the hamburger meat for her company's annual picnic. She needs to but enough meat to make 1,000 hamburgers. Each hamburger<span>will weigh 0.25 pound. How many pounds of hamburger meat should Madison buy?
250=answer</span>
