X=pounds of apples
y=pounds of peaches.
we suggest this equation:
x+y=165
1.75x+2.5y=337.5
We solve this equation by substitution method:
x=165-y
1.75(165-y)+2.5y=337.5
288.75-1.75y+2.5y=337.5
0.75y=337.5-288.75
0.75y=48.75
y=48.75/0.75=65
x=165-y
x=165-65=100.
She sell 100 pounds of apples and 65 pounds of peaches.
F(x) = 4x³ + 3x - 2
Since there no constraint whatsoever, the domain of f(x) is all x∈ R
Or x| x= ( -∞≤ x ≤ +∞)
Angle ABC
ANGLE CBA
ANGLE A
ANGLE B
(filler) The answer is 22