400x=22,000
22,000/400=x
55=x Hopefully this is right, and hopefully this helps
Answer:
(a) 3 - 2x - 2x² (b) -21
Step-by-step explanation:
given, y +2x² = 3 -2x
make y the subject:
y = 3 - 2x - 2x²
if y = f(x)
then
f(x) = 3 - 2x - 2x²
(b)<u> to find f(3) we need to replace x with 3:</u>
<u />
3 - 2(3) - 2*(3)²
-21
Answer:
y=-1
Step-by-step explanation:
Two, 2 and 7, because 3/11 just equals 0.2727272727..., so the two and seven keep repeating
