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ELEN [110]
3 years ago
6

Expand and simplify (7 + V 6 )^2 Give your answer in the form b+ c V 6

Mathematics
2 answers:
Ierofanga [76]3 years ago
6 0

Answer:

55 + 14\sqrt{6}

Step-by-step explanation:

Given

(7 + \sqrt{6} )² = (7 + \sqrt{6} )(7 + \sqrt{6} )

Each term in the second factor is multiplied by each term in the first factor, that is

7(7 + \sqrt{6} ) + \sqrt{6} (7 + \sqrt{6} ) ← distribute both parenthesis

= 49 + 7\sqrt{6} + 7\sqrt{6} + 6 ← collect like terms

= 55 + 14\sqrt{6}

Anton [14]3 years ago
6 0

b +cV 6 ÷12a

Step-by-step explanation:

let meknow 8i I am wrong

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The length of the ladder is 34.33 feet if the electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 33 feet up. The ladder makes an angle of 74° with the ground.

<h3>What is a right-angle triangle?</h3>

It is defined as a triangle in which one angle is 90 degrees and the other two angles are acute angles. In a right-angled triangle, the name of the sides are hypotenuse, perpendicular, and base.

We have:

An electrician leans an extension ladder against the outside wall of a

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From the sin ratio;

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X = 34.329 ≈ 34.33 feet

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Learn more about the right angle triangle here:

brainly.com/question/3770177

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2 years ago
Dane is 10 times Brian's age. The difference in their age is 27, how old is Brian
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