Answer:
(x-3)(x-9)
Step-by-step explanation:
first thing you need to do is move the -6 over. so we're going to add 6 to both sides (we add because it's negative 6 and we need 0 on the right side)
so you have: x^2-12x+27
now we need to come up with two numbers that add to -12 and multiply to 27.
the factors of 27 are 9 & 3 and 27 & 1. only 9 & 3 add to 12 so we are going to use those.
since the 12 is negative however, 9 and 3 should both be negative.
therefore we get: (x-3)(x-9)
*it doesn't matter which order you put them in!
Answer:
x < -10
Step-by-step explanation:
Some treat the < as an equals sign to make it easier and less confusing to solve. Rewrite the equation with an equals sign for the time being.
18+12x= - 102.
Treat it as any other equation now and solve for x.
Subtract 18 from both sides to cancel out 18 on the left.
12x=-120
Divide by 12 to get x by itself.
x=-10.
Put the < back.
x < -10
21.20 would be the total with tax
the taxes would equal $1.20
Honestly to explain it I put it into a calculator.. sorry :)
I put in 6% of 20 then add it to the $20
Answer: Yes, radicals can be rationals.
Step-by-step explanation:
Yes, a radical can be rational.
If a square root is a perfect square, you will obtain an integer, and by definition, the integer are rationals (they can be written as simple fractions).
Example:
If the radical has a root <em>n </em>and number inside of the root can be written as a power with exponent 
, then you will obtain a radical.
Example:
![\sqrt[3]{64}=\sqrt[3]{4^{3}}=4=\frac{4}{1}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B64%7D%3D%5Csqrt%5B3%5D%7B4%5E%7B3%7D%7D%3D4%3D%5Cfrac%7B4%7D%7B1%7D)
Answer:
the answer is D
Step-by-step explanation:
when you add 74.95 + 74.95 (both tires) and take 15% off, it'll give you 127.42
