Graph the linear equation. 3x-4y= 24
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Let x = 0, then y = -6
Let y = 0, then x = 8
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Plot (0,-6) and (8,0) and draw a line thru them to get:
<em>apply the distributive law</em>
-xx * 2 - (-x) * 4
<em>apply minus-plus rules </em>
2xx + 4x
<em>apply exponent rule</em>
-2x² + 4x
<em>i hope this helps :)</em>
Answer:
a. 277.3 m²
b. $307.86
Step-by-step explanation:
a. Area of the wall to be painted = area of rectangle - area of triangle
= L × W + ½×a×b×sin θ
L = 17 m
W = 14 m
a = 8.7 m
b = 9.5 m
θ = 72°
Plug in the values into the equation
Area of the wall = (17×14) + (½*8.7×9.5×sin 72)
Area of the wall = 238 + 39.3024105
Area of the wall to paint ≈ 277.3 m²
b. 20 liters of paint of 1 container cost $21.99
If 1 liter of paint covers 1m², therefore,
277.3 m² will need = 277.3 × 1 = 277.3 liters of paint.
20 liters = 1 container of paint
277.3 liters = 277.3/20 = 13.865 ≈ 14 containers
1 container = $21.99
14 containers = 21.99 × 14 = $307.86
Answer:
14
Step-by-step explanation:
Since the volume of a prism is length*width*height, and the width is 3 and the height is 5 and the volume is 210, you get the equation 3x5x length=210. Solving it, you get length=14.
Answer:
2x + 3y - 7
Step-by-step explanation:
3x − 2y − 7 + 5y − x =
2x - 2y - 7 + 5y =
2x + 3y - 7