Answer: f(a-2) = 2a² - 14a + 28
Step-by-step explanation:
f(x) = 2x² - 6x + 8
you can take a-2 and substitute it for each x, which would look like this:
f(a-2) = 2(a-2)² - 6(a-2) + 8
then distribute those in ( )
f(a-2) = 2a² - 8a + 8 - 6a + 12 + 8
combine like terms
f(a-2) = 2a² - 14a + 28
13. linear functions alwasys have x^1 as highest exonent for placeholder
we see that in D, we have 6x^2 which is quadratic, not linear
D is ansre
15. isolate y
emember you can do anything to an equaiton as long as you do it to both sides
12x-4y=20
add 4y to both sides
12x+4y-4y=20+4y
12x+0=4y+20
12x=4y+20
minus 20 both sides
12x-20=4y+20-20
12x-20=4y+0
12x-20=4y
divide both sides by 4
12/4x-20/4=4/4y
3x-5=1y
3x-5=y
y=3x-5
why is it not listed, there is an error in the question, report the erre
Answer:
Pigs = 20 and Chickens = 50
Step-by-step explanation:
Let the number of pigs be x
and let the number of chicken be y
Thus, x + y = 70
Since Chicken has 2 legs and pigs has 4 legs.
⇒ 4x + 2y = 180
Solving both equations,
We get, x = 20 and y = 50
Thus number of pigs = 20
and, number of chickens = 50.
