linda3025
17.12.2020 •
Mathematics
(PLEASE HELP!!)
A cars miles per gallon (mpg) said to have a linear relationship with the weight of the car.
The regression equation is given below:
MPG 48.78 -0.0082(weight)
What is the predicted value a car that weighs 2608 lbs?
A) 27.35
B) 35.27
C) 23.35
D) 24.28
Solved
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Ответ:
134.4 centimeters
Step-by-step explanation:
This question is asking us for a missing leg on the triangle, lets call it x. Using the Pythagorean theorem (a²+b²=c²), we can figure out what value is missing (either a or b, they are interchangeable).
replace the values in the equation.
83²+x²=158²
get rid of the exponents.
6,889+ x² = 24,964.
subtract 6,889 from 24,964.
x²=18,075.
find the square root on both sides of the equation.
x=134.4432966.
I am assuming you want this rounded to the nearest tenth.
134.4 is your answer.
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