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Archy [21]
3 years ago
15

A line has a slope of -2 and passes throught (8,-9). What is the equation of the line in slope intercept form

Mathematics
2 answers:
grigory [225]3 years ago
7 0
So my answer is y=-2x+7
san4es73 [151]3 years ago
5 0
-2×8 is -16+7 is -9 so it would be y=-2x+7
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Three ratios that are equivalent to 5:25
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Answer:

Incorrect

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Ilya [14]
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2 years ago
A store owner is interested in opening a second shop. She wants to estimate the true average daily revenue of her current shop t
Alex
Every confidence interval has associated z value. As confidence interval increases so do the z value associated with it. 
The confidence interval can be calculated using following formula:
\overline{x} \pm \frac{zs}{\sqrt n}
Where \overline{x} is the mean value, z is the associated z value, s is the standard deviation and n is the number of samples.
We know that standard deviation is simply a square root of variance:
s=\sqrt{315900.20}=\$562.05
The confidence interval of 95% has associated z value of <span>1.960.
</span>Now we can calculate the confidence interval for our income:
3472.00\pm \frac{1.960\cdot 562.05}{\sqrt{60}}\\ \$3472.00\pm142.22


6 0
3 years ago
Also may i have help with this one
mote1985 [20]
The answer should be 11 since adding all the x’s up before 13 equals 11
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