Answer:
Y = -0.3587+0.09118X
92 %
Step-by-step explanation:
Using technology to fit the data between the variables, test score and hours of sleep; we obtain the linear model :
Ŷ = -0.3587+0.09118X
Where, x = test score ; y = hours of sleep
To obtain the test score of a student who sleep foe 8 hours using the model :
Y = 8
Ŷ = -0.3587+0.09118X
8 = -0.3587+0.09118X
8 + 0.3587 =0.09118X
8.3587 = 0.09118X
X = 8.3587 / 0.09118
X = 91.672515
X = 92 ( approximately)
I will convert feet to inches.
4 feet, 6 inches = 54 inches
20 feet = 240 inches
5/x = 54/240
Let x = closest height of tree
54x = 5(240)
54x = 1,200
x = 1200/54
x = 22.2222222222
The tree is about 22 feet tall.
Answer:
-x² + x + 6
Step-by-step explanation:
Hey there!
To solve this, you have to use foil...
( 3 - x ) ( x + 2 )
3 ( x + 2 ) = 3x + 6
-x ( x + 2 ) = -x² - 2x
3x + 6 - 2x - x²
-x² + x + 6
Hope this helps :)
Answer:
ANSWER
Let one number = x
other number = 2x-3
(x+2x−3)+7=37
3x = 33
x = 11
∴ The two number are 11 and 19
