Question

MEDAL
http://prnt.sc/chcud9

Answer 1

@zepdrix @Jaynator495 @Nnesha @IrishBoy123

Answer 2

Which one?

Answer 3

Any of them

Answer 4

The first, you use the property here, the root n is the same as the fraction 1/n power
\[\large \sqrt[n]{a}=a^{1/n}\]

so
\[\large \sqrt[3]{x^3} = [x^3]^{1/3} = x^{3/3} = x\]

Answer 5

Cube root both sides...

Answer 6

\[\large \sqrt[3]{x^3} = \sqrt[3]{\frac{ 125 }{ 27 }}=\frac{ \sqrt[3]{125} }{ \sqrt[3]{27} }\]
\[\large x=\frac{ 5 }{ 3 }\]

Answer 7

5/3? sorry I'm slow

Answer 8

yeah, with that you should be able to get the next one...

Answer 9

number 2 is 60.5?

Answer 10

@DanJS could you please help me with the 3rd one

Answer 11

The second is a square root, the second root.

\[\large x^2 = a\]
\[\large x = \pm \sqrt{a}\]

The square root can give a plus or minus value... two minuses under the root can multiply to a positive...

Answer 12

You see

x = 121
X - 121 = 0
(x + 11)*(x - 11) = 0

so
X + 11 = 0
or
X - 11 = 0

X = +11 or X=-11

Answer 13

The last says it is a Square, all sides are equal, and the area of the square is Side*side Area = (length*width)

If a side is, call it X
the Area of the square is

\[\large Area = X *X = X^2\]

Answer 14

They say the area is 113 , so you put that in and solve for X, side length

113 = X^2

Answer 15

10.64? @DanJS

Answer 16

With the calculatior, square root of 113 is about 10.6301
that would round to 10.63

Answer 17

oh i got 10.64