Given:
The equation of the curve is:

To find:
The gradient (slope) of the given curve at point (2,7).
Solution:
We have,

Differentiate the given equation with respect to x.


Now we need to find the value of this derivative at (2,7).




Therefore, the gradient (slope) of the given curve at point (2,7) is 19.
Answer:
4(aaa - 44) = 64
Step-by-step explanation:
I think this is right.
Answer:
1.6 , 1.6
Step-by-step explanation:
Rounding 1.59 to 1 decimal place, it will be 1.6
1.58, rounded to 1 decimal place is 1.6
Answer:
5 tickets after may 30th would be $135.
5 tickets before may 30th would be $121.50
Step-by-step explanation:
If you buy the 4 tickets + the one ticket you would get $135 for after may 30th then multiply that by .1 to get 121.5 for before may 30th with the 10% off.
15x - 10 where x is equal to the number of weeks would respresent the situation above. This is because he gains 15 cards every week and gave ten cards to James once.
If it has only been one week, the expression will be 15 - 10 because 15 × 1 = 15.
I hope this helps!