A storage box without a top is 18 inches long , 15 inches wide ,and 10 inches high , The outside of the box is painted yellow .
1 answer:
Answer:
The total area that is painted yellow is
Step-by-step explanation:
we know that
The area of the outside of the box is equal to the surface area of the box minus the area of the top
The area of the outside is
where
B is the area of the base
P is the perimeter of the base
H is the height of the box
<em>Find the area of the base B</em>
<em>Find the perimeter of the base P</em>
we have
substitute the values
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Answer:
y = - 2
Step-by-step explanation:
Calculate the slope m using the slope formula
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
with (x₁, y₁ ) = (- 1,2) and (x₂, y₂ ) = (4, y)
m = , hence
= -
( cross- multiply )
5(y - 2) = - 20 ( divide both sides by 5 )
y - 2 = - 4 ( add 2 to both sides )
y = - 2
coordinates of point are (4, - 2)