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kirza4 [7]
3 years ago
8

Determine f(3)=?????

Mathematics
1 answer:
krok68 [10]3 years ago
5 0

Answer:

f(3) = -4

Step-by-step explanation:

Draw a line parallel to the y-axis and cross point 3 on the x-axis. This line cuts the parabola at a point whose coordinates on the y-axis are f (3). This is -4.

Hope you understand.

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Side note: the dashed line says "points on this boundary do not count as solutions". So any point with an x coordinate of -1/2 does not count.  

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laiz [17]

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Step-by-step explanation:

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3 years ago
An art project has an area of 63.6 square inches. What is the width, in inches, of the project?
miss Akunina [59]

Answer:

Option C . 5.3 in

Step-by-step explanation:

<u><em>The complete question is</em></u>

An art project has an area of 63.6 square inches. What is the width, in inches, of the project?

A rectangle is shown divided into 4 smaller rectangles that are related to the size of the edges. The top edge is labeled 10 inches and 2 inches, above the top two rectangles. The top two rectangles are much larger than the bottom two rectangles

Let

x ----> the length of the art project in inches

y ----> the width of the art project in inches

we know that

The area of the rectangular art project is equal to

A=xy

we have

A=63.6\ in^2

so

63.6=xy ----> equation A

x=10+2=12\ in

substitute the value of x in the equation A

63.6=(12)y

solve for y

y=63.6/12\\y=5.3\ in

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