Answer:
a.) (x-3)(x-3) = 25 + (x-4)(x-4)
x^2 - 6x + 9 = 25 + x^2 - 8x + 16
-6x + 9 = -8x + 41
2x + 9 = 41
2x = 32
x = 16
b.) 16 - 4 = 12
AB = 12
c.) 16 - 3 = 13
AC = 13
[btw I don't know if this is the method your teacher wants as it does not use the similar triangle :/ but it is still correct :) so good luck bro]
She has 300 - 15 = 285 dollars left.
285/300 = 95/100 = 95%
Answer:
1. 25
2. 24
equations below
Step-by-step explanation:
Order of operations is: PEMDAS = parentheses, exponents, multiplication, division, addition, subtraction
1. 5 x (20/4)
normally we multiply before we divide, but in this case, the division is in parentheses, so we start there
= 5 x 5
then multiply
= 25
------------------------
2. The lovely land of exponents
6^2 (the only way I can type 6 squared, or 6 to the power of 2, where the 2 is up as a superscript)
6^2 - 2 x 6
PEMDAS has us do the exponents before multiplication or subtraction:
6^2 = 6 x 6 = 36
= 36 - 2 x 6
then multiply:
= 36 - 12
then subtract:
= 24
Oh? You're approaching me?
