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MAXImum [283]
3 years ago
6

What is the exact value for the expression the square root of 52− the square root of 13 + the square root of 117 ? Simplify if p

ossible.
Select one:
a. 4 the square root of 13
b. the square root of 13
c. 2 the square root of 39
d. 8 the square root of 39
Mathematics
1 answer:
avanturin [10]3 years ago
8 0

√52 -√13 +√117

= 2√13 -√13 +3√13

= 4√13 . . . . matches selection A

_____

√52 = √(4·13) = (√4)(√13) = 2√13

√117 = √(9·13) = (√9)(√13) = 3√13

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Answer:

Option B) (-1,7,5) is correct.

The solution to the given system of equation is (-1,7,5)

Step-by-step explanation:

Given system of equations are

-7x-2y+z=-2\hfill (1)

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To find the solution of the given system of equations by using Elimination method:

Now adding equations (1) and (2)

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-x-3y=-20

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Now adding equations (1) and (3)

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-2x+2y=16

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4y=28

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y=\frac{28}{4}

Therefore y=7

Substituting y=7 in equation (4)

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Therefore z=5

Therefore the solution to the given system of equation is (-1,7,5)

Therefore Option B) (-1,7,5) is correct.

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