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disa [49]
2 years ago
6

Radius of Cirlce A is 7ft. The radius of Circle B is 2ft greater than the radius of Circle A. The radius of Circle C is 5ft grea

ter than the radius of circle B. The radius of circle D is 3ft less than the radius of Circle C. What is the area of each circle? How many times greater than the area of Circle A is the area of Circle D?
Mathematics
1 answer:
Flauer [41]2 years ago
4 0

Answer:

Given: Radius of circle (r)=

π

7

Area of the circle =π(r)

2

=π×(

π

7

)

2

=π×

π

49

=49cm

Step-by-step explanation:

please mark me as brainlist please

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Answer:

23.9

Step-by-step explanation:

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What is the approximate distance from the origin to the point (3, −4, 5)? Round to the nearest unit. 4 units 7 units 8 units 9 u
Dafna11 [192]

Answer:

Option B is correct.

Step-by-step explanation:

The distance formula used is:

d=\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2+(z_{2}-z_{1})^2}

We need to find distance between origin and other point (3,-4,5)

Origin is: (0,0,0)

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Putting values in the distance formula we get:

d=\sqrt{(3-0)^2+(-4+0)^2+(5-0)^2}\\d=\sqrt{(3)^2+(-4)^2+(5)^2}\\d=\sqrt{9+16+25}\\d=\sqrt{50}\\d=7

The Distance from the origin to the point (3, −4, 5) is 7 units.

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