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delawdermia27
22.09.2020 •
Mathematics
IM SORRY I PUT MATH INSTEAD OF SCIENCE- Why do rocks on the ocean floor form a pattern of magnetized stripes?
O The rocks contain iron that points in the direction the rocks move away from the ridge.
O The rocks are composed of different materials depending on when they formed.
O The rocks change shapes as a result of the pushing and pulling of seafloor spreading.
O The rocks contain iron that points in different directions depending on Earth's polarity
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Ответ:
1)![y =\±75\\\\x =\±75](/tpl/images/0449/9910/fda28.png)
2)![r= 75\ miles](/tpl/images/0449/9910/2af70.png)
3)![A = 17,671.46\ miles ^2](/tpl/images/0449/9910/ec90b.png)
Step-by-step explanation:
The general equation of a circle has the form:
Where r is the radius of the circumference.
In this problem we have the circle with equation
1) The intercepts with the x-axis we find them doing y = 0 and solving for x:
The intercepts with the y-axis we find them doing x = 0 and solving for y:
The 4 interceptions are:
2) The radius is:
3) The area of a circumference is: