To find roots of a polynomial, you have to find numbers that when you multiply will equal 5 (because 5*1) and add to -5. since the only factors of 5 are 1 & 5, they do not equal -5. you will have to use the quadratic formula to find the roots. if you want decimals, they are 0.723607 & 0.276393
Answer:
$285.12
Step-by-step explanation:
first, we'll solve for the 45% sale.
45/100
0.45 x 480
= 216
subtract from the original price
480 - 216
= 264
now we'll solve for the 8%
8/100
0.08 x 264
= 21.12
add the 45% and 8%
264 + 21.12 = 285.12
Answer:
Step-by-step explanation:
This is awfully hard to read. Use returns to separate paragraphs.
ax = bx + 1 Subtract bx from both sides.
ax - bx = 1 take out x as a common factor
x(a - b) = 1 Divide both sides by a - b
x = 1 / (a - b)
I think the second one is the one you want.
x is the same as the reciprocal of the difference between a and b.
Answer:
Step-by-step explanation:
I'm not sure I know exactly what that [1] means.
But here's how you get the answer
g(x) = 3x + 12
The symbolism means that wherever you see an x on the right side of g(x) you put f(x)
So it looks like this
g(f(x) ) = 3(f(x)) + 12 Now you put f(x) = 2x + 7 in for f(x) on the right.
g(f(x)) = 3(2x + 7) + 12 Remove the brackets
g(f(x)) = 6x + 21 + 12
g(f(x)) = 6x + 33
Now you deal with the x on the left. It becomes - 6
g(f(-6)) = 6(-6) + 33
g(f(-6)) = -36 + 33
g(f(-6)) = - 3
Rule 1
(g · f)(x)
has the meaning of whatever the function on the left is (in this case g) then the function of f is put in the xs place.
May we have details so we know how to answer
