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levacccp [35]
3 years ago
8

What are the roots of the quadratic function in the graph?

Mathematics
2 answers:
RideAnS [48]3 years ago
7 0

Answer:

D

Step-by-step explanation:

The roots are the points on the x- axis where the function has a value of zero. That is where the graph crosses the x- axis

The graph crosses the x- axis at x = - 3 and x = 4, hence

Roots of the quadratic function are x = -3, 4 → D

qwelly [4]3 years ago
5 0

Answer:

D

Step-by-step explanation:

The roots are where the curve crosses the x-axis.  So that's x=-3 and x=4.

Answer D.

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Soloha48 [4]
Multiply 1.5 times 7. That comes to 10.5 cups per week. Now convert it to quarts. There are 4 cups in one quart, so divide 10.5 by 4. That comes to 2.625 quarts per week. Now convert it to gallons. There are 4 quarts in a gallon, so divide 2.625 by 4. That comes to about 0.7 gallons a week, or 7/10.
8 0
3 years ago
A line has a slope of -4 and passes through the point (0,5). Write the equation of this line in standard form. Be sure to expres
emmainna [20.7K]

Answer:

Final answer in standard form of the line is 4x+y=5.

Step-by-step explanation:

Given that slope of the lime m = -4

Now we need to find the equation of a line that has a slope of -4 and passes through the point (0,5). Write the equation of this line in standard form.

So plug the given slope m=-4 and the point (0,5) into point slope formula:

y-y_1=m\left(x-x_1\right)

y-5=-4\left(x-0\right)

y-5=-4\left(x\right)

y-5=-4x

y=-4x+5

4x+y=5

Hence final answer in standard form of the line is 4x+y=5.

5 0
3 years ago
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Find the remaining volume of the cube with the cone removed.
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Step-by-Step explanation:
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3 years ago
Is this proportional
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What is proportional?
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6 0
4 years ago
poll finds that 54% of the 600 people polled favor the incumbent. Shortly after the poll is taken, it is disclosed that he had a
Paha777 [63]

Answer: A. z = -2.57

Step-by-step explanation:

Let p be the population proportion of people polled favor the incumbent.

As per given , we have

H_0: p=0.54\\\ H_a: p

Sample size : n= 1030

sample proportion :  \hat{p}=0.50

Test statistic for proportion : z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

z=\dfrac{0.50-0.54}{\sqrt{\dfrac{0.54(1-0.54)}{1030}}}\\\\= \dfrac{-0.04}{\sqrt{\dfrac{0.2484}{1030}}}\\\\=\dfrac{-0.04}{0.015529488}\approx-2.57

Hence, the  test statistic is z = -2.57 .

Thus , the correct answer is A. z = -2.57 .

7 0
3 years ago
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