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3 years ago

|x+5| =3 plz help show steps

Mathematics

2 answers:

ELEN [110]3 years ago

5 0

Lx+5l=3
x+5=-3
-5 -5
x=-2

x+5=-3
-5 -5
x=-8

So the answer can be x=-2 or x=-8

tia_tia [17]3 years ago

4 0

Answer:

x=-2

Step-by-step explanation:

|x+5|=3

-2+5=3

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Answer:

x=4, y=-2

Step-by-step explanation:

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What is greater than 100 inches or 3 yards and one of the

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3 years ago

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Nataly_w [17]

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Step-by-step explanation:

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3 years ago

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With Obesity on the rise, a Doctor wants to see if there is a linear relationship between the Age and Weight and estimating a pe

Romashka [77]

Answer:

112.569 ( D )

Step-by-step explanation:

Applying the estimated Regression Equation

y = b1X1 + b2X2 + a

b1 = ((SPX1Y)*(SSX2)-(SPX1X2)*(SPX2Y)) / ((SSX1)*(SSX2)-(SPX1X2)*(SPX1X2)) = 596494.5/635355.88 = 0.93884

b2 = ((SPX2Y)*(SSX1)-(SPX1X2)*(SPX1Y)) / ((SSX1)*(SSX2)-(SPX1X2)*(SPX1X2)) = 196481.5/635355.88 = 0.30925

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y = 0.939X1 + 0.309X2 + 31.733

For x1 ( age ) =39, and x2(weight) =143

y = (0.93884*39) + (0.30925*143) + 31.73252= 112.569

where

Sum of X1 = 981

Sum of X2 = 3102

Sum of Y = 2388

Mean X1 = 61.3125

Mean X2 = 193.875

Mean Y = 149.25

attached is the Tabular calculation of the required values needed for estimated regression equation

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