X^2 - 13 x = -36
add 36 to both sides
x^2 - 13x +36 = 0
figure out the factor
(x-4)(x-9) = 0
so (x-4) or (x-9) equals 0
so solution is
x-4=0 add 4 to both sides and get x = 4
x-9=0 add 9 to both sides and get x=9
x={ 4, 9}
Answer:
a) Yes
Step-by-step explanation:
Because, 3+7=10
To find a percent you multiply the decimal number by 100. OR to be easier just move the decimal number 2 places to the right.
4.3%
