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Zinaida [17]
3 years ago
9

Write an equation of the circle with center (-4,5) and radius 8.

Mathematics
1 answer:
Verizon [17]3 years ago
6 0

Answer:

(x+4)2+(y-5)2=8

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the NACI cafeteria wants to sell two 25 cm diameter medium size pizzas for the same price as one large pizza. what should the di
Alex777 [14]

Answer:

35.34 centimeters

Step-by-step explanation:

The amount of pizza is same as the area. The pizza is in a shape of a circle. The area of a circle is:

A=\pi r^2

Where

r is the radius (half of diameter)

Area of one medium size pizza is (diameter 25 means radius is 25/2 = 12.5):

A=\pi r^2\\A=\pi (12.5)^2\\A=490.87

So, area of two of these medium size pizzas is:

490.87 * 2 = 981.74

This should be the area of the large pizza. We can find the radius of that by substituting into formula. Shown below:

A=\pi r^2\\981.75=\pi r^2\\r=\sqrt{\frac{981.74}{\pi}} \\r=17.67

Hence, the diameter would be around:

17.67 * 2 = 35.34 centimeters

5 0
3 years ago
Factor the following.
Verizon [17]
The answer is D (y+10)(y-6) 
because 


6 0
3 years ago
Read 2 more answers
If 1 inch represents 65 miles on a map, then how many inches will represent 2210 miles?
Talja [164]

Answer:

34

Step-by-step explanation:

2210 / 65 = 34. There is no further explanation

8 0
2 years ago
Formulating and solving inverse variation functions
andreyandreev [35.5K]

Answer:

See below.

Step-by-step explanation:

A. k = 50 * 3.6 = 180.

B. The equation is y = 180/x.

C. When x = 75, y = 180/75

= 2.4.

D.  Checking C:  2.4 = 180/75 = 2.4. Correct

7 0
3 years ago
Imma keep on saying this I understand some of it but not all againnnn I’m sorryyy
Mariulka [41]

Answer:

6) The answer is 210p - 105

7) The answer is  -124q + 216

Step-by-step explanation:

1. Always Distributive Property first

6) -14 (8 - 15p)           7) -12 ( -18 + 10q)

    -112 +210p                 216 -120q

2. Combine like terms

6) -112  +  7  = -105   your full answer is 210p -105

7) -120q +   -4q  =  -124q  Your full answer is -124q +216.

Hope this helps.

6 0
3 years ago
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