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stellarik [79]
2 years ago
7

In need of help!!!! Please

Mathematics
1 answer:
otez555 [7]2 years ago
3 0

Answer:

a. 36 b. 217.1

Step-by-step explanation:

l x w= 6 x 6 = 36

14x21=294

Area of a circle = pi r squared

7x7=49

49/2=24.5

24.5 x 3.14=76.93

294-76.9=217.1

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A circle has the center of (1,-5) and a radius of 5 determine the location of the point (4,-1)
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"determine the location" or namely, is it inside the circle, outside the circle, or right ON the circle?

well, we know the center is at (1,-5) and it has a radius of 5, so the distance from the center to any point on the circle will just be 5, now if (4,-1) is less than that away, is inside, if more than that is outiside and if it's exactly 5 is right ON the circle.

well, we can check by simply getting the distance from the center to the point (4,-1).

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3 years ago
What does it mean to square a negative number​
Andrej [43]

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This is because to square a number just means to multiply it by itself. For example, (-2) squared is (-2)(-2) = 4. Note that this is positive because when you multiply two negative numbers you get a positive result.

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Semmy [17]
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sasho [114]

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To plot  

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