Answer:
k is the constant of proportionality
2 1/4 gallons
Step-by-step explanation:
y = kx, k is the constant of proportionality
y = how much of the tank is filled
x = how many gallons used
1/3 = k (3/4)
Multiply each side by 4/3 to isolate k
4/3*1/3 = k (3/4)*4/3
4/9 = k
y = 4/9x
We want y to be 1 for a full tank
1 = 4/9 x
Multiply each side by 9/4 to isolate x
9/4 = 4/9 x * 9/4
9/4 =x
We need 9/4 gallons or simplifying
2 1/4 gallons
Answer:
15.4 Liters
Step-by-step explanation
1 kilometere x 2.2 liters = 2.2 liters
7 kilometeres x 2.2 liters = 15.4 liters
its the first one because you would have 3 left over.
A) x=-2,1,3(x+2)(x-1)(x-3)=0(x+2)(x2-4x+3)=0x3-4x2+3x+2x2-8x+6=0x3-2x2-5x+6=0 b) x=-3,3,i and also -i(x-3)(x+3)(x-i)(x+i)=0(x2-9)(x2-i2)=0(x2-9)(x2+1)=0x4-9x2+x2-9=0x4-8x2-9=0 c) x=-2,-2,2-3i (also 2+3i), 4+√2 (also 4-√2)(x+2)(x+2)(x-[2-3i])(x-[2+3i])(x-[4+√2])(x-[4-√2])(x2+4x+4)(x2-[2-3i]x-[2+3i]x+4-9i2)(x2-[4+√2]x-[4-√2]x+16-2)(x2+4x+4)(x2-4x+13)(x2-8x+14)you now multiply all three trinomials together
