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3 years ago

Y-int for 2n^2+5n-25=0

1 answer:

5 0

The intercept is -25 because for a quadratic equation in the form
$ax {}^{2} + bx + c$
the c value or the number without a variable attached is the y intercept

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butalik [34]

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3 years ago

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Please help I will mark Brainly

Bas_tet [7]

okay so you would go down to -8, then the slope would be 4/1 which means to go up four and then over one. then you have the line.

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3 years ago

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11Alexandr11 [23.1K]

Answer:

15 ways

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2 years ago

If the length of a rectangle is 4.3 feet and its width is 2.7 feet what is its are and its perimeter

Dvinal [7]

The area is 11.61 square feet and the perimeter is 14 feet. i hope this helps :)

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3 years ago

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Your boss tells you that she knows the length of the widgets your company makes is normally distributed with a mean of 25 inches

sp2606 [1]

Answer:

Mean of sampling distribution = 25 inches

Standard deviation of sampling distribution = 4 inches

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 25 inches

Standard Deviation, σ = 12 inches

Sample size, n = 9

We are given that the distribution of length of the widgets is a bell shaped distribution that is a normal distribution.

a) Mean of the sampling distribution

The best approximator for the mean of the sampling distribution is the population mean itself.

Thus, we can write:

$\bar{x} = \mu = 25\text{ inches}$

b) Standard deviation of the sampling distribution

$s = \dfrac{\sigma}{\sqrt{n}} = \dfrac{12}{\sqrt{9}} = 4\text{ inches}$

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3 years ago