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2 years ago

What is the y intercept The graph X Y -2 3 -1 5 0 7 1 9 2 11

Mathematics

1 answer:

Bad White [126]2 years ago

4 0

Answer:

0 7

Step-by-step explanation:

at the Y- intercept the value of x is zero

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Fred spent half of his allowance going to the movies. He washed the family car and earns 7 dollars. What is his weekly allowance

KiRa [710]

15=0.5x+7
0.5x=12
X=24
His weekly allowance is $24

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3 years ago

Quick question: is this correct?

blsea [12.9K]

Answer:

aha

you know what I mean

mean I guess your correct

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2 years ago

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As a manager for an advertising company, you must plan a campaign designed to increase Twitter usage. A recent survey suggests t

kolbaska11 [484]

Given:
Sample proportion = 85% = 0.85.
Confidence level (CL) = 90%.
Confidence interval (CI) $\hat{p} \pm z^{*} \sqrt{ \frac{\hat{p}(1-\hat{p})}{n} } \\ where \\ n=sample\, size \\ z^{*}=1.645 \, at \, 90\% \, CL$

We want the confidence interval to be 5% or 0.05. Therefore
$0.85 - 1.645 \sqrt{ \frac{0.85(1-0.85)}{n} }=0.05 \\ 0.85 - \frac{0.5874}{ \sqrt{n} } =0.05 \\ \frac{0.5874}{ \sqrt{n} }=0.8 \\ \sqrt{n} = .7342 \\ n=0.54$

Because this number is less than 1, a default sample size of 30 (for the normal distribution) is recommended.

Answer: 30

3 0

3 years ago

Can anyone answer these questions?

sdas [7]

Answer:

g^2=49

7^2=49

g=7

hope it is helpful to you

6 0

3 years ago

Find an equation of each line given one point and the slope : (4, 8); slope 8

Fudgin [204]

Step-by-step explanation:

in such a case the easiest approach might be using the point-slope form of a line equation :

y - y1 = m(x - x1)

with m being the slope, and (x1, y1) being a point on the line.

so, in our case that would be

y - 8 = 8(x - 4)

simplified this would be

y - 8 = 8x - 32

y = 8x - 24

FYI - this would be then the slope-intercept form (-24 would be the intercept point on the y-axis).

3 0

1 year ago