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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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3 years ago

Charity is four times as old as her daughter. She is also six years younger than her husband. The sum of their ages ten years to

zubka84 [21]

Answer: Charity is 36 years old today.

Step-by-step explanation:

Let x = Present age of daughter.

Age of Charity = 4x

Age of her husband = 4x+6

After 10 years,

Age of daughter = x+10

Age of Charity = 4x+10

Age of her husband = 4x+6+10=4x+16

As per given,

$x+10+4x+10+4x+16=117$

$9x+36=117\\\\ 9x=117-36\\\\ 9x=81\\\\ x=9$

Present age of Charity = 4(9)=36 years

Hence, Charity is 36 years old today.

4 0

3 years ago

V2 - 15 = -2v Solve the Quadratic. What are the 2 solutions?

ki77a [65]

Answer:

v=-5 and v=3

Step-by-step explanation:

We are given that

$v^2-15=-2v$

We have to find two solutions of quadratic equation.

$v^2+2v-15=0$

Using addition property of equality

$v^2+5v-3v-15=0$ (By using factorization method)

$v(v+5)-3(v+5)=0$

$(v+5)(v-3)=0$

Substitute each factor equal to 0

$v+5=0$ and $v-3=0$

$v=-5$ and $v=3$

Hence, two solutions of quadratic equation are

v=-5 and v=3

8 0

3 years ago

Determine the value of x in the given diagram, when a║b.

mixer [17]

155 degrees is the answer

7 0

3 years ago

Please help :)))))))))))))

masya89 [10]

Tbh I can’t see that

7 0

2 years ago