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hjlf
2 years ago
8

Cos(45-150) exact answer

Mathematics
1 answer:
victus00 [196]2 years ago
7 0
The answer is - \frac{ \sqrt{6}- \sqrt{2}}{4}
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The 1.8 s is the time for the signal to reach the ocean floor and return to the ship so the time to reach ocean floor = 1.8 / 2 = 0.90 seconds.
depth of ocean = speed * time

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8 0
3 years ago
How to solve a system of three equations with substitution
zloy xaker [14]

Answer:

Usually there are the variables x y z but it doesn't matter what they are.

Step-by-step explanation:

First choose your first variable to solve. Find x by putting all the numbers and variables to one side.

once you found x substitute the answer for x in all the equations. Next find y and substitute your answer in all the equations again.

Once you have solved 2 variables then you are able to solve z.  

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4 0
3 years ago
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Dominik [7]
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x = 8.571428571
8 0
3 years ago
Select ALL the expressions that are equivalent to -4(8x-3)
Vinvika [58]

Answer:

dddddStep-by-step explanation:

8 0
2 years ago
I'll mark you the brainiest if you get this right<br> thx x
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A) triangle c, has the largest area
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