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3 years ago

Find the value of y . Please help !

Mathematics

1 answer:

Leokris [45]3 years ago

8 0

9514 1404 393

Answer:

(b) √55

Step-by-step explanation:

The right triangles in this geometry are all similar, so the ratio of long side to short side is the same:

y/5 = 11/y

y² = 55 . . . . . . multiply by 5y

y = √55 . . . . . take the square root

And x=4√5 by looking at ratios of short side to hypotenuse.

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Step-by-step explanation:

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3 years ago

Solve for x 1/2+4/2x=x+4/10

Ksivusya [100]

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4 years ago

Read 2 more answers

Find the perimeter and the area of the figure

valina [46]

Answer:

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3 0

2 years ago

Use a special-product rule to factor the perfect-square trinomial. 81y^2+ 126y + 49

Ivahew [28]

Answer:

The perfect -square trinomial

(9y+7)²

Step-by-step explanation:

Explanation:-

Given polynomial equation

81 y² + 126 y +49

⇒ 9² y² + 2(9)(7)y + 7²

⇒ (9y)² + 2(9)(7)y +7²

we will use formula

(a+b)² = a² + 2ab +b²

⇒ (9y+7)²

Final answer:-

The perfect -square trinomial

(9y+7)²

7 0

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