What do u mean man i don't get it ether sorry brah <span />
The answer to this question would be: D.99,400 * (0.87)^t < 12,000; 16 days
In this question, the initial number of leaves is 99,400 and it will decrease by 13% each day. Decrease by 13% can be put become: 100%-13%=87% of the original number.
Then, the function for the number of the leaves should be:
99,400 * (0.87)^t
to find how many days after autumn that the tree leaves is less than 12,000 the calculation should be:
99,400* (0.87)^t <12,000
(0.87)^t< 0.1207
The smallest number would be (0.87)^16= 0.10772290133
I<span>s that cos (2pi/3) or cos^2 (pi/3) ????</span><span>
1/2 of 2 =1
</span>cos (2pi/3) = - 1/2 <span>
cos (pi/3) = 1/2
cos^2 (pi/3) = 1/4
take your pick!
pi/3 radians = 60 degrees, and cos is looking for the side adjacent to the 60 degree angle
in a 30-60-90 triangle, the sides are in the ratio 1-sqrt(3)-2
so cos 60 = 1/2
2(pi/3) = 120 degrees-- the same triangle, except now, x is negative ==> cos 2pi/3 = -1/2</span>
You start by writing your expression. Since each banner cost 28 per yard, you're going to multiply the price by the length by the number of banners she bought. (28)(17/8)(2)+(28)(25/8)=206.50
Answer:
Time required to make a pile of 45 sticks next to their fire = 10 minutes
Step-by-step explanation:
This is an example of arithmetic progression.
First term = 5 - 3 + 7 = 9 sticks
Common difference = 7 - 3 = 4 sticks.
So the number of sticks next to their fire is increasing like this
9, 13, 17, 21 .............
term of AP = a + (n-1) d, we need to find n
a + (n-1) d = 45
9 + (n-1) x 4 = 45
(n-1) x 4 = 36
n - 1 = 9
n = 10
Time required to make a pile of 45 sticks next to their fire = 10 minutes
