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xeze [42]
3 years ago
12

Nina can ride her bike 63,360 feet in 3,400 seconds, and Sophia can ride her bike 10 miles in 1 hour. What is Nina's rate in mil

es per hour if there are 5,280 feet in a mile?
Mathematics
1 answer:
avanturin [10]3 years ago
4 0
5,280 feet → 1 mile
63,360 feet → 63,360/5,280 = 12 miles

60 x 60 seconds → 1 hour
3,400 seconds → 3,400/3,600 = 17/18 hours

Nina's rate = 12 miles / (17/18) hours = 12 12/17 miles per hour.
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What is an equation of a circle whose center is at (2,-4) and is
Evgesh-ka [11]

The equation of the circle with center at (2,-4) and tangent to the line x = -2 is given by:

(2) (x - 2)² + (y + 4)² = 16

<h3>What is the equation of a circle?</h3>

The equation of a circle of center (x_0, y_0) and radius r is given by:

(x - x_0)^2 + (y - y_0)^2 = r^2

The circle has center at (2,-4), hence x_0 = 2, y_0 = -4.

The center is tangent to the line x = -2, hence it has a point at x = -2, since |-2 - 2| = 4, r = 4 -> r² = 16.

Hence the equation of the circle is given by:

(2) (x - 2)² + (y + 4)² = 16

More can be learned about the equation of a circle at brainly.com/question/24307696

#SPJ1

6 0
2 years ago
The areas of two square fields are respectively 256 and 625 sq.m. find the ratio of their sides
Arlecino [84]
We know that
area of the square=b²-------> b=√area
where
b is the side length of the square

for the smaller square
area=256 m²
b=√256-------> b=16 m

for the larger square
area=625 m²
b=√625-----> b=25 m

<span>the ratio of their sides is 16/25</span>

4 0
4 years ago
79,81,84,88,100,88,82 what is the median of these numbets
pshichka [43]

84 is the median of the numbers



4 0
3 years ago
Read 2 more answers
Start with k, add 2, multiply by 6, then subtract 8. Please answer its URGENT! needed NOW ​
adelina 88 [10]
The answer is 4 because k+2 would be 2 then times by 6 which is 12 then subtract 8 would be 4
3 0
3 years ago
Any help would be appreciated. (Check the picture)
White raven [17]

the answer would be 0.800375 but when you round it to the nearest tenth it would be 0.8

4 0
3 years ago
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