3 years ago

Using and Analyzing Regression Lines

Mathematics

1 answer:

Kryger [21]3 years ago

7 0

Answer:

1. There is a negative correlation between time (in days) and the number of push-ups Juan does.

Step-by-step explanation:

The slope of the regression line (0.631) is positive, so the correlation between days and pushups is positive.

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Anybody know this ? please help

Deffense [45]

Answer:

A.) m ∠ ABD = m ∠ CBD

Step-by-step explanation:

The line segment BD was constructed as an angle bisector, which means that ∠ ABC was split directly in half. This means that the two resulting angles are congruent.

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3 years ago

1)X²+5X-50=0 2)6²+6B-16=0 3)R²+6R+8=0 4)P²+5P+6=0

zubka84 [21]

1) X²+5X-50=0

↠X² + 10X -5X -50 = 0

↠X(X+10)-5(X+10) = 0

↠(X-5)(X+10)=0

↠X = 5, -10

2)B²+6B-16=0

↠B² + 8B - 2B -16 = 0

↠B(B+8) -2(B+8) =0

↠(B-2) (B+8) =0

↠B = 2,-8

3)R²+6R+8=0

↠R²+4R+2R+8=0

↠R(R+4)+2(R+4)=0

↠(R+2)(R+4)=0

↠R=-2,-4

4) P²+5P+6=0

↠P²+3P+2P+6=0

↠P(P+3)+2(P+3)=0

↠(P+2)(P+3)=0

↠P=-2,-3

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2 years ago

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Ms. Donaldson earns $18.80 per hour for the first 40 hours she works in a week. She earns 1 ½ times that amount per hour for eac

juin [17]

You take $18.80 divide by 2 =$9.40 then $18.80+$9.40=$28.20
$28.20 x's 5.5=$$155.10
$18.80 x's 40=$752.00
then add 752.00+155.10=$907.10

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4 years ago

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Solve the equation 1/2(2x+2)-1/4(3x-1)=15

Illusion [34]

Answer:

it is algebraic expression

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3 years ago

Perpendicular lines AB and CD intersect at point E. If m∠AED = x + 20, what is the value of x?

kondor19780726 [428]

I'm pretty sure it's 70 because they have to intersect at right angles, and 70 + 20 = 90.

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3 years ago

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