3 years ago

PLEASE HELP MEEEEEEE

Mathematics

1 answer:

Marysya12 [62]3 years ago

7 0

Answer:

area of circle=πr²=3.14×5²=78.5unit²

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Two satellites are orbiting Earth. The path of one satellite has the equation x^2 + y^2 = 56250000. The orbit of the other satel

ExtremeBDS [4]

Answer:

1,257 km

Step-by-step explanation:

The path of one satellite has the equation

$x^2 + y^2 = 56,250,000\\ \\x^2+y^2=7,500^2$

This is the equation of the circle with the center at the origin (Eartg) and the radius of 7,500 km.

The orbit of the other satellite is 200 km farther from the centre of Earth, so the radius of this orbit is 7,700 km.

Find the distances travelled by two satellites:

1st satellite:

$D_1=2\pi r_1=2\pi \cdot 7,500=15,000\pi \ km$

2nd satellite:

$D_2=2\pi r_2=2\pi \cdot 7,700=15,400\pi \ km$

Difference:

$D_2-D_1=15,400\pi -15,000\pi =400\pi \approx 1,257\ km$

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4 years ago

Mike and Krista rent a jet ski while on vacation. The rental cost is represented by the function c(h)=50+20h, where the number o

Step2247 [10]

Answer:

130

Step-by-step explanation:

Given the equation of the relation as c(h) =50 +20 h where c(h) is the total cost for h hours and h is the number of hours of use, then to find the cost of jet ski if 4 hours were used will be;

c(h)=50 +20 h

c(4)=50 +20*4

c(4)=50 +80

=130

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3 years ago

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Where is everything?

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3 years ago

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SashulF [63]

The correct answer is A hope this helps

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4 years ago

What is the surface area of the rectangular prism?<br> 2 m<br> 10 m<br> 5 m

Delvig [45]

Answer:

10m

Step-by-step explanation:

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2 years ago

PLEASE HELP MEEEEEEE​

PLEASE HELP MEEEEEEE