Someone help me please :)

9514 1404 393

  x = 25√2

Step-by-step explanation:

The Pythagorean theorem is used to relate the sides of a right triangle to the hypotenuse. The sides are marked as being the same length, so both are x. Then we have ...

  50² = x² + x²

  50² = 2x² . . . . . . . . collect terms

  2·(2500/4) = x² . . . . . multiply by 2/4*

  √(2·625) = x . . . take the square root

  25√2 = x

* We use a version of 1/2 that has a prefect square in the denominator (2/4) so that we don't end up with an irrational denominator when we take the square root. It's a little bit of planning ahead.

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation:

answer:

a=9

step-by-step explanation: lmk if you need a explanation