The distributive property shows that you need to multiply the separately by each term in the parentheses. This means you multiply
and
, then add them together to get
, or in the terms of your answer choices,
.
A department store is having a sale.All jeans are on sale for 15% off.if a pair of jeans originally cost $115.00,what is the sal
1 answer:
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Answer:
The approximate probability is 0.1921.
Step-by-step explanation:
The <em>p</em>-value is defined as the probability, [under the null-hypothesis (H₀)], of attaining a result equivalent to or greater than what was the truly observed value of the test statistic.
The hypothesis to test whether the proportion of consumers that plan to buy a new TV screen within the next year is 0.22, is defined as:
<em>H₀</em>: The proportion of consumers that plan to buy a new TV screen within the next year is 0.22, i.e. <em>p</em> = 0.22.
<em>Hₐ</em>: The proportion of consumers that plan to buy a new TV screen within the next year is 0.22, i.e. <em>p</em> > 0.22.
The information provided is:
<em>n</em> = 230
<em>X</em> = 56
Compute the value of sample proportion as follows:
Compute the test statistic as follows:
The test statistic value is, 0.87.
Compute the <em>p</em>-value as follows:
*Use a <em>z</em>-table for the probability.
The <em>p-</em>value of the test is 0.1921.
Thus, the approximate probability of obtaining a sample proportion equal to or larger than the one obtained here is 0.1921.
Answer:
Dear User
Answer to your query is provided below
X = 2/7 or X = -3/2
Step-by-step explanation:
Explanation for the same is attached in image
Answer: (2,2) and (-5,16)
Step-by-step explanation:
Here we have both Line (Linear Function) and Parabola (Quadratic Function)
So I am gonna write these equations here,
The first equation has Parabola graph (Since it's second degree.)
and the second equation has line graph.
To find the intersection, you have to substitute either -2x+6 in first equation (Quadratic) or x^2+x-4 in second equation (Linear)
For me, I am going to substitute x^2+x-4 in y=-2x+6.
Now solve the equation and find the value of x.
Since it's Quadratic Equation (Because there's x^2) I'd move -2x+6 to the left side.
Finish things here (Subtract and Addition)
What two numbers multiply to 10? Find the factors of 10, that are [1 and 10] and [2 and 5]
Now think about it, do you think that if 1 and 10 subtract or even addition, do you think that it'd be 3? No, of course not.
So 2 and 5 is right.
(5-2 = 3) and (5*(-2) = -10)
Then we get both x,
However, this is not it. You have to substitute both x in Linear Equation.
Substitute x = 2 in y=-2x+6
Order =
Then substitute x = -5 in y=-2x+6
Order =
So the intersections are both (2,2) and (-5,16) as shown in graph below.
