Answer:
Answer is B
Step-by-step explanation:
Answer:7x+9
Step-by-step explanation:7x+6=3x+7=7x+9
Answer:
Speed of plane in still air = 825 km/h
Step-by-step explanation:
Given:
Speed of plane with the wind is 145 km/h faster than what it would have with still air.
Speed of plane with wind = 970 km/h
To find speed of plane in still air.
Solution:
Let speed of plane in still air be =
km/h
Thus speed of plane with wind would be given as =
km/h
Speed of plane with wind is given =970 km/h
So, we have:

Solving for
.
Subtracting both sides by 145.

∴
km/h (Answer)
Thus, speed of plane in still air = 825 km/h
0=x3-3x2
x3-3x2=0
x2•(x-3)=0
x=0
Answer:
A) Function 2 shows a greater rate of change because Jenny spends $6 each month and Sandra spends $5 each month.
Step-by-step explanation:
The y-intercept for Sandra is 55 and the slope is -5. While Jenny's y-intercept is 50 and slope is -6.
6 is a greater number therefore causing Jenny's slope to decrease faster causing her to have less money at a much faster rate. (rate of change=slope) Jeny's slope is decreasing at a faster rate of change because she is spending more money everyday than Sandra is.
Hope this helps! Have a great day! :)