3 years ago

Enter the equation of the circle described below. Center (3, -2), radius = 5

Mathematics

1 answer:

VMariaS [17]3 years ago

8 0

Equation of a circle:
(x - h)^2 + (y - k)^2 = r^2

where (h,k) is the center and r = radius

(x - 3)^2 + (y + 2)^2 = 25

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Karolina [17]

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3 years ago

Aiden measures a book with paper strips. It is actually 10 paper strips long, but he gets an answer of 8. What is his mistake ?

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2 years ago

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1/43 is the probability of drawing an orange marble.

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2 years ago

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sladkih [1.3K]

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3 years ago

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The ratio of boys to girls in a group is 7:1. If there are 66 more boys than girls, work out how many girls there are

nevsk [136]

Answer:11

Step-by-step explanation:

Boys : girls=7:1

Sum of ratio=7+1=8

Let them number of girls be y

Then they number of boys=y+66

Total number of pupils=y+y+66

Total number of pupils=2y+66

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y=1/8 x (2y+66)

Cross multiply

y x 8=2y + 66

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Collect like terms

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2 years ago