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bearhunter [10]

3 years ago

6

write and equation in slope intercept form for the following scenario. andy’s rental car charges an initial fee of $20 plus an a

dditional $30 per day to rent a car

1 answer:

Elza [17]3 years ago

8 0

Answer:

y = 30x + 20

Step-by-step explanation:

y = mx + b

find b

b=20

find m

m=30

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Express the confidence interval

marissa [1.9K]

Answer:

$\hat p = \frac{0.244+0.326}{2}=0.285$

$ME = \frac{0.326-0.244}{2}=0.041$

$0.285 \pm 0.041$

Step-by-step explanation:

For this case we have a confidence interval given as a percent:

$24.4\% \leq p \leq 32.6\%$

If we express this in terms of fraction we have this:

$0.244 \leq p \leq 0.326$

We know that the confidence interval for the true proportion is given by:

$\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}$

And thats equivalent to:

$\hat p \pm ME$

We can estimate the estimated proportion like this:

$\hat p = \frac{0.244+0.326}{2}=0.285$

And the margin of error can be estimaed using the fact that the confidence interval is symmetrical

$ME = \frac{0.326-0.244}{2}=0.041$

And then the confidence interval in the form desired is:

$0.285 \pm 0.041$

7 0

3 years ago

Determine the slope of the line that contains the given points.

nydimaria [60]

Answer:

slope = 2/3

Step-by-step explanation:

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3 years ago

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How many minutes does it take a man to walk a mile if he walks at a rate of 4 feet per second

Serjik [45]

Answer:

1,320 seconds or 22 minutes to walk 1 mile

Step-by-step explanation:

5280 feet (1 mile) ÷ 4 feet per second = 1,320 seconds or 22 minutes

3 0

3 years ago

What is the equation of the line in slope-intercept form that is perpendicular to the line y = x – 2 and passes through the poin

Ostrovityanka [42]

Y= 3/4x - 2 (-2,10)= (x1,y1)
The slope is -4/3 of the perpendicular line:
Then:
y-y1=m(x-x1)
y-10=(-4/3)(x+2)
y=-(4/3)x -8/3 +10
y= -(4/3)x +22/3 (That's the answer)

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3 years ago

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stealth61 [152]

222222222222-22111111111111111
= - 2.2111 × 10^16

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3 years ago