this is the equation of a line in slope intercept form with a slope of 1/4 and a y intercept of -5
Answer:
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Step-by-step explanation:
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Answer:
Step-by-step explanation:
<u>System Of Equations
</u>
We know the scale shows a false reading for the weights by a constant value. Let's call e the weight it adds or subtracts from the real weight it measures.
When the box is put on the scale, the real weight is b, but the scale shows
When the bag is weighted, the real value is g, but the scale shows
Finally, when both are measures, the real weight is b+g and the scale shows
We have formed a system of equations. It's easy to find the value of b, we just need to subtract the last two equations
We can divide the shape into a rectangle and a triangle:
(1) Area of rectangle = length*width
From the graph we can see that the length of the rectangle is 7 units and the width is 5 units
Area = 7*5 = 35 units^2
(2) Area of triangle = 1/2*bh
From the graph we can see that the base of the triangle is 4 units and its height is 5 units
Area = 1/2*4*5 = 10 units^2
(3) Total area = area of triangle + area of rectangle
= 10 + 35
= 45 units^2
