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4vir4ik [10]
3 years ago
9

Find the distance between the points 3,7 and 15, 12 on the coordinate plane?

Mathematics
1 answer:
lana [24]3 years ago
8 0
\text{Distance } = \sqrt{ (x_2 -x_1)^2 + (y_2 - y_1)^2}

\sqrt{ \left( 15 -  3\right)^2 +  \left( 12 -  7\right)^2}\\\\\sqrt{\left( 12\right)^2  + \left( 5\right)^2}\\\\\sqrt{    144  +   25 }\\\\\\ \sqrt{   169 } = \boxed{\bf{ 13}}
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andreev551 [17]

Answer:

Step-by-step explanation:

1)

O = center of circle (origin)

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118° = ∠x

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62° is the interior angle to  arc QR , so

arc QR is also 62°

3)

b/c the intercepted arc YZ = 2* 68=136

then 136+125+? = 360

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5)

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we are given the two arcs  120 and 70 for both of these we know that the

interior angles will be the same.  ∠JOX  has a central angle of 120 , then

b/c triangle JOX is an isosceles,  we know that the two angles J and X of

the triangle JOX will be 1/2 of  60 , or 30 each

also for    

also ∠XOY has an interior angle of 70 so the two angle at X and Y will be 1/2 of 110 , or 55°

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5 0
3 years ago
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Answer:

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3 years ago
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Arturiano [62]

Answer:

A person who watches 8.5 hours of TV can do 30.4 sit ups.

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The regression equation is used to predict or estimate the value of the response (or dependent) variables using the information about the explanatory (or predictor) variables.

The general form of a regression equation is:

y=ax+b

Here,

<em>y</em> = dependent variable

<em>x</em> = independent variable

<em>a</em> = intercept

<em>b</em> = slope

The regression equation representing the relationship between hours of TV watched per day (<em>x</em>) and number of sit ups a person can do (<em>y</em>) is:

y=-0.74x+36.359

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y=-0.74x+36.359

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Thus, a person who watches 8.5 hours of TV can do 30.4 sit ups.

6 0
3 years ago
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