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LiRa [457]
3 years ago
5

Please help!! I need to finish this quick

Mathematics
1 answer:
Natalija [7]3 years ago
4 0
Theorem: pythagorean

Equation: 5^2 + h^2 = 8^2

Solving:

25 + h^2 = 64
h^2 = 39
h =
\sqrt{39 }


Hope this helps!! :)
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Six subtracted from a number
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A submarine that is 245 feet below sea level descends 83 feet and then ascends 103 feet. What is the location of the submarine c
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Step-by-step explanation:

7 0
2 years ago
Factorise fully 50 - 2y2​
TiliK225 [7]
50 - 2y2
STEP
2
:

STEP
3
:
Pulling out like terms

3.1 Pull out like factors :

50 - 2y2 = -2 • (y2 - 25)

Trying to factor as a Difference of Squares:

3.2 Factoring: y2 - 25

Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)

Proof : (A+B) • (A-B) =
A2 - AB + BA - B2 =
A2 - AB + AB - B2 =
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Note : AB = BA is the commutative property of multiplication.

Note : - AB + AB equals zero and is therefore eliminated from the expression.

Check : 25 is the square of 5
Check : y2 is the square of y1

Factorization is : (y + 5) • (y - 5)

Final result :
-2 • (y + 5) • (y - 5)
3 0
2 years ago
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