Answer:
The answer to your question is: 1.78 gallons
Step-by-step explanation:
Data
1 gallon = 400 ft²
room = 8 ft x 20 ft x 7 ft
Process find the area of the 6 walls of the room
Area of the floor and ceiling
A = base x width
A = 20 x 8
A = 160 ft² x 2
A = 320 ft²
Area of the walls
Area = base x width
Area = 2(20 x 7) + 2(7 x 8)
Area = 280 + 112
Area = 392 ft²
Total area = 320 + 392 = 712 ft²
1 gallon ------------------- 400 ft²
x ------------------- 712 ft²
x = (712 x 1)/400
x = 1.78 gallons
I consider that Maria will paint both the floor and the ceiling
Sum of interior and exterior angle is 180 so
Interior angle =180−72=108
Now we need to find the no of sides of the polygon= n We know that interior angle of n-sides is given by
(n−2)×180n
We have
(n−2)×180=108n
or
180n−360=108n
or
72n=360
n=5 sides so there are 5 angles each of 108 degrees Sum of the interior angles=108+108+108+108+108=540.....
<span>To find the measure of each exterior angle of a regular polygon, you just divide 360 degrees by the number of sides.
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Answer:
Step-by-step explanation:
3x + 3y = -3 given
3x = -3y - 3 subtract 3y from both sides
x = -y -1 divide everything by 3
hope this helps <3
Answer:
t = 3 seconds
Step-by-step explanation:
Here h(t) = -16t^2 + 144.
When the quarter hits the ground, its height will be 0 feet. Letting h(t) = 0 results in -16t^2 + 144 = 0, or 16t^2 = 144, or
144
t^2 = ------------ = 36/4 = 9 seconds^2
16
Therefore, the time, t, required for the quarter to hit the ground is t = √9, or t = 3 seconds
Answer:
Step-by-step explanation:
Given the regression equation :
y=2+3x
Mean of y values ; y = 5.0
Where y is the predicted variable ; x = predictor variable
The predicted value of y for X = 2
Null: H0 = 5
Alternative H1 : ≠ 5
Sample size (n) = 10 pairs
Degree of freedom = n - 2 = 10 - 2 = 8
