3 years ago

Y is directly proportional to the square root of x

Mathematics

1 answer:

Inessa [10]3 years ago

8 0

Answer:

Step-by-step explanation:

y=k $\sqrt{x}$

60=k $\sqrt{36\\}$ =k6

k=60/6 =10

This is your equation

y=10 $\sqrt{x}$

Put the numbers in

80=10 $\sqrt{x}$

80/10=8 then you have to square this so

$8^{2}$ =64

x=64

You might be interested in

In exercises 21 through 24 is it possible to construct a triangle if the given side lengths? If not explain why.

sattari [20]

26jshshsgsgwgwhhwhwhwgehehhrhee

7 0

4 years ago

Find area of parallelogram multiple choice

alina1380 [7]

In ∆ABD

$\\ \sf\longmapsto Area=\dfrac{1}{2}bh=\dfrac{1}{2}(7\times 4)$

In ∆BCD

$\\ \sf\longmapsto Area=\dfrac{1}{2}(7\times 4)$

Now

IN PARALLELOGRAM ABCD

$\\ \sf\longmapsto Area=\dfrac{1}{2}(7\times 4)+\dfrac{1}{2}(7\times 4)$

Option A

4 0

2 years ago

Solve the following system of equations <br> x^2+2y^2=59<br> 2x^2+y^2=43

aivan3 [116]

Answer: x = (-3,3), y = (-5,5)

Step-by-step explanation:

Add both of the equations together, for $3x^{2}+3y^{2} = 102$ . Now we can divide both sides by 3, getting $x^2+y^2=34$ . we subtract the first equation from our equation we just got, getting $y^2=25$ y= (5,-5). once we plug that in, we get $50+x^2 = 59$ , $x^2 = 9$ x = (-3,3)