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ycow [4]
3 years ago
8

If f(x)= -5 -7x, find f(-2)

Mathematics
1 answer:
swat323 years ago
4 0

Answer:

Given f(-2)

= -5 -7(-2)

= -5+14

= 9

Thus f(-2) of f(x)= 5-7x is 9

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Alexxx [7]

Answer:

<em>26 ft^2</em>

Step-by-step explanation:

Let us imagine a rectangle around this figure, provided a rectangle with dimensions 5 feet by 7 feet. If we were to subtract the non - shaded region in this rectangle from the rectangle's area itself, it would save as some time to solve for the area of the shaded region;

<em>Area of Outer Rectangle ⇒ 5 * 7 = 35 ft^2</em>,

Now this non - shaded region is composed of a triangle and a rectangle, the triangle having dimensions 3 by 2 feet, the rectangle being 2 by 3 feet consecutively;

<em>Area of triangle ⇒ 1/2 * base * height = 1/2 * 3 * 2 = 3 ft^2</em>,

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Thus the area of the shaded region is: 35 - 3 - 6 = 26 ft^2;

<em>Answer: 26 ft^2</em>

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2 years ago
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