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atroni [7]
3 years ago
8

A submarine is descending to examine the seafloor 2,100 feet below the surface. It takes the submarine 2 hours to make this desc

ent. Write an equation to represent the relationship between the submarine's elevation and time. Use y to represent the elevation and x represents the hour.
Mathematics
1 answer:
Oksanka [162]3 years ago
4 0

Answer:

2,100 times 2

Step-by-step explanation:

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7 0
3 years ago
How do I do 8b(ii) ? Please help me thank you!
Mila [183]
Step One
======
Find the length of FO (see below)

All of the triangles are equilateral triangles. Label the center as O
FO = FE = sqrt(5) + sqrt(2)

Step Two
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Drop a perpendicular bisector from O to the midpoint of FE. Label the midpoint as J. Find OJ

Sure the Pythagorean Theorem. Remember that OJ is a perpendicular bisector.

FO^2 = FJ^2 + OJ^2
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FJ = 1/2 [(sqrt(5) + sqrt(2)]                                           \
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[Sqrt(5) + sqrt(2)]^2 = [1/2(sqrt(5) + sqrt(2) ] ^2 + OJ^2
5 + 2 + 2*sqrt(10) = [1/4 (5 + 2 + 2*sqrt(10) + OJ^2
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OJ = sqrt(21/4 + 3/2 sqrt(10) )

Step three
find h
h = 2 * OJ
h = 2* sqrt(21/4 + 3/2 sqrt(10) ) <<<<<< answer.


7 0
3 years ago
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Akimi4 [234]

Answer:

the probability of the dice is 1/6 and the probability of the spinner is 1/4.

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the probability of the spinner=E/S=E=1 and S=4 because the spinner is divided into 4. so P=1/4

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