Add 9 to both sides to get 4n=0 so n=0
Answer:
Step-by-step explanation:
42 < 21+3x < 84
21 < 3x < 63
7 < x < 21
Answer: 0
Step-by-step explanation:
Slope (m) is defined by the formula change in y divided by the change in x. You could denote "change in" using Δ (delta).
The change in y is your final postion along the y-axis, subtracted by your initial position on the y axis.
The change in x is your final position among the x-axis, subtracted by your initial position.
Think of these two sets of coords like two positions. Your final y was 2, and your initial was also 2. Do 2 - 2 to get 0. We dont even need to solve for delta x because 0 divided by anything is zero. Therefore your slope will be 0. That basically means you have a critical point of the function. The tangent line will be completely horizontal along that interval of coords.
Put into graphing calculator and get B.-5,1,3
Answer:
The time for which parking charge taken is 3.5 hours
Step-by-step explanation:
Given as :
The total cost paid by Merry for car parking = $2.20
The charge taken by garage for parking is as ( $0.45 ) +( $0.25 for each half hour)
Let the Time taken as half hour = x
So, According to question
0.45 + 0.25 × x = $2.20
Or, 0.25 × x = $2.20 - $0.45
I.e 0.25 × x = $ 1.75
∴ x = $ (
= 7
So,Total time spend = 
= 3.5 hours
Hence The time for which parking charge taken is 3.5 hours Answer
