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3 years ago

Pleaaaaaaaaaase help please please please

Mathematics

1 answer:

gizmo_the_mogwai [7]3 years ago

5 0

Answer:

y = x - 2

Step-by-step explanation:

Using any two points to find the slope. I will using (3, 1) and (7, 5)

Slope = (change in the y values)/(change in the x values)

Slope = (5 - 1)/(7 - 3) = 4/4 = 1

Next find the y -intercept "b", using the table to find the value of y when x is zero. That point is (0, -2) . So the y-intercept ("b") is -2

or use one of the point (7, 5) and substitute into the slope- intercept formula and solve for "b'

y = mx + b

5 = 1(7) + b

5 = 7 + b

-2 = b

Write the equation in the slope-intercept form y = x - 2

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Which of these four sets of side lengths will form a right triangle?

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Set 3

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If you square 3 mm and 4 mm then add them together you get 25 mm, then you get the square root of 25, which is 5.

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3 years ago

Read 2 more answers

Ignoring those who said they weren't sure, there were 297 men asked, and 183 said yes, they had driven a car when they probably

USPshnik [31]

Answer:

$z=\frac{0.616-0.5}{\sqrt{\frac{0.5(1-0.5)}{297}}}=3.998$

$p_v =2*P(z>3.998)=0.0000639$

With the most common significance levels used $\alpha= 0.1, 0.05, 0.01$ we see that the p value is lower than the significance level so then we have enough evidence to reject the null hypothesis and we can say that the true proportion is significantly higher than 0.5

Step-by-step explanation:

Information given

n=297 represent the random sample of male taken

X=183 represent the men who said yes, they had driven a car when they probably had too much alcohol

$\hat p=\frac{183}{297}=0.616$ estimated proportion of men who said yes, they had driven a car when they probably had too much alcohol

$p_o=0.5$ is the value that we want to test

z would represent the statistic (variable of interest)

$p_v$ represent the p value (variable of interest)

Hypothesis to test

We need to conduct a hypothesis in order to test the claim that the majority of men in the population (that is, more than half) would say that they had driven a car when they probably had too much alcohol, and the system of hypothesis are:

Null hypothesis: $p\leq 0.5$

Alternative hypothesis: $p > 0.5$

The statistic is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

After replace we got:

Since we have all the info requires we can replace in formula (1) like this:

$z=\frac{0.616-0.5}{\sqrt{\frac{0.5(1-0.5)}{297}}}=3.998$

Decision

We have a right tailed test so then the p value would be:

$p_v =2*P(z>3.998)=0.0000639$

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3 years ago

Montoya Construction needs to borrow $375,000 to build a road to install utilities in a small subdivision. It borrows the funds

MissTica

Step 1

Given;

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Required; To find the difference in interest between the two periods.

Step 2

State the formula for simple interest