3/6 is the correct answer. Hope that helped :)
Answer:
about 81 years
Step-by-step explanation:
A graphing calculator can give you the answer easily.
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You can solve the problem algebraically by putting in the given number and solving for t.
30000 = 32000/(1 +12.8e^(-.065t))
12.8e^(-.065t) = (32000/30000) -1 = 1/15
e^(-.065t) = 1/(15·12.8) = 1/192 . . . . . divide by 12.8
-0.065t = ln(1/192) ≈ -5.257 . . . . . . take the natural log
t = -5.257/-0.065 ≈ 80.88 . . . . . . . .divide by the coefficient of t
It will take about 81 years for the number of trees to reach 30,000.
Answer:
First building = 456
Second building = 438
Third building = 383
Step-by-step explanation:
First building = 73 + x
Second building = 55 + x
Third building = x
Total height of three buildings = 1277
(73 + x) + (55 + x) + (x) = 1277
73 + x + 55 + x + x = 1277
128 + x + x + x = 1277
128 + 3x = 1277
3x = 1149
x = 383
This is the height of the third building.
First building = 73 + x = 73 + 383 = 456
Second building = 55 + x = 55 + 383 = 438
To get the answer, you have to multiply 1,817.43 by 0.0344 (decimal form of 3.44%). So that would equal 62.52.
B. $62.52
Answer:
16.24 Units
Step-by-step explanation:
The perimeter of the triangle is the sum of the length of the sides of the triangle. Given the points on the vertices, the length of each side may be found using the formula
Length = √(x2 - x1)^2 + (y2 - y1)^2
Considering the pair (-1, 2), (3, 1), the length of that side
= √(3 -- 1)^2 + (1-2)^2)
= √(16 + 1)
= √17 units
Considering the pair (-1, 2), (7, 2), the length of that side
= √(7 -- 1)^2 + (2-2)^2)
= √(64)
= 8
Considering the pair (3, 1), and (7, 2), the length of that side
= √(7 - 3)^2 + (2 - 1)^2
= √(16 + 1)
= √17
Hence the perimeter of the triangle
= √17 + 8 + √17
= 4.12 + 8 + 4.12
= 16.24 Units