Can someone help me on these two ? please :( i love you if u do ( geometry )

every 5 customers that walk in, only 2 buy popcorn.

step-by-step explanation:

basically 2/5.

brainliest would be appreciated.

1

x = 1

step-by-step explanation:

0 ÷ x = 0

0 ÷ 1 = 0

the expression mentioned can be written, in mathematical terms, as:

3√ x^5 y

now the same expression can be written in different ways.

for example, we can rewrite the rational exponents by multiplying the value of cubic square with x^5 and y to get

x^5/3 y^1/3

or

we can simplify the radical by breaking the radicand (the number under the radical symbol) up into a product of known factors like

x   3√ x^2 y

to prove that sin⁴a+2cos²a-cos⁴a, we can factor out cos²a

sin⁴a+2cos²a-cos⁴a

= sin⁴a+cos²a(2-cos²a)

since sin²a + cos²a = 1, cos²a = 1 - sin²a so substituting

= sin⁴a+cos²a(2-(1 - sin²a) )

= sin⁴a+cos²a(1 + sin²a)

= sin⁴a+cos²a+ sin²a cos²a distribution

= sin⁴a + sin²a cos²a +cos²a

= sin²a(sin²a+cos²a) +cos²a by factoring

= sin²a * 1 + cos²a by pythagorean identity

= 1 by pythagorean identity