Answer:
2.5/yr
Step-by-step explanation:
Every year the height of the tree goes up by 2.5 ft.
You can tell that by doing this
12-9.5=2.5
9.5-7= 2.5
7-4.5= 2.5
I hope this helps! tell me if I need to explain more!
Depth=15
x=(height(h)*width(w)*hypotenuse(y))/2
x=(3*4*5)/2=(60/2)=30
y=(x(x-h)(x-w)(x-y))^(1/2)
f=(-h^4+2(hw)^2+2(wy)^2-w^4+2(hy)^2-y^4)^(1/2)
f=(-3^4+2(3*4)^2+2(4*5)^2-4^4+2(3*5)^2-5^4)^(1/2)
f=576^(1/2)
f=24
Surface Area= 2f(.5)+(h+w+y)*depth
192=depth*(3+4+5)+24(.5)
180=(3+4+5)*depth
180=(12)(depth)
15=depth
Answer:
Step-by-step explanation:
Given
i.e. first to fifth
Required
Determine number of selection
1st position = Any of the 30 students
2nd position = Any of the 29 students
3rd position = Any of the 28 students
4th position = Any of the 27 students
5th position = Any of the 26 students
Number of selection is then calculated as:
To find the mean (average), u add up all the numbers, then divide by how many numbers there are.
(200 + 150 + 325 + 100 + 75) / 5 = 850/5 = 170 <== the mean
Answer:
D. 15
Step-by-step explanation:
<em>Use proportions.</em>
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