Answer:
403
Step-by-step explanation:
This is the sum of the arithmetic sequence:
10 - 2 + 6 + 14 + ... + 110
where: a 1 = - 10, d = 8
a n = 110
a n = a 1 + ( n - 1 ) * d
110 = - 10 + ( n - 1 ) * 8
110 = - 10 + 8 n - 8
110 + 10 + 8 = 8 n
128 = 8 n
n = 128 : 8
n = 16
∑ n = n/2 * ( a 1 + a n )
∑ 16 = 16/2 * ( -10 + 110 ) = 8 * 100 = 800
Answer:
The sum is 800.
Answer:
The circumference is 37.7 mm.
The distance between A and B is 4/3. The formula for finding the distance is y2-y1/x2-x1.
If 25 offspring are born and 14 moose die per year that means every year the number of moose increases by 11.
550 + 11x = 550*2
(x: how many years taken to double the number of moose)
550 + 11x = 1100
11x = 550
x = 50 years
idk if this is right tho you should check again
