Answer:
They are parallel but they are not equal where y=7x^2 It's y intercept is 0 and for y=7x^2+4 it's y intercept is 4
Step-by-step explanation:
12 - b = -2
12 + 2 = b
14 = b
Jack's current monthly bill is
(1200 kWh +400 kWh)*($0.075/kWh) = $120
On the interval use plan, Jack's monthly bill would be
(1200 kWh)*($0.03/kWh) + (400 kWh)*($0.15/kWh) = $36 + 60 = $96
If Jack were to switch, his savings would be $120 -96 = $24.
The appropriate choice is ...
b. Jack should switch to the interval use plan, which would save him $24 per month.
The answer is 8 × 10² km.
Volume of the cube with edge a is: V = a³
1 mole = V = a³
1 mole = 6.02 × 10²³ cm³
a = ?
a = ∛6.02 × 10²³ cm³ = 84 436 877 cm
1 km = 1 000 000 cm
1 cm = 0.000001 km
a = 84 436 877 cm = 844 km = 8.44 × 100 km = 8.44 × 10² km ≈ 8 × 10² km
