Answer:12 m
Step-by-step explanation:
Given
Width of garden 
Total fencing 
If Lulu has enough fencing to go around her rectangular garden then , it should be equal to perimeter of garden
Suppose L is the length of garden
Therefore perimeter is 
thus length of fencing is 
On the 4th stage, 81 friends will be called to be told of the news
Answer:
The surface area would be 471.
Answer:
f'(x) = 2x + 
Step-by-step explanation:
differentiate using the power rule
( a
) = na
Given
f(x) = x² - 
+ 9 = x² - 4
+ 9 , then
f'(x) = 2x + 12
= 2x +
The correct answer is D (x - 5)(x - 2)
You can tell this because in the picture, we are looking for all of the cross sections to multiply to their appropriate boxes. In the bottom right corner, we see the number 10. This means that the bottom number and the right number must multiply to 10. This only happens in A and D, whereas in B and C those equal -10.
To determine between A and D, you must find the ones that have negatives, since the two x values are both negatives. D is the only one with negative numbers out of the ones we are left working with. Therefore, D is the correct answer.
