Answer:
1
Step-by-step explanation:
the 2^x - 2^x cancels out
For number 1. it is wrong. It is fresh water. Ocean water is salt water. I don't know the rest, sorry. I will come back if I find out though! :D
Slope formula:
M= y2-y1
———
X2-x1
Answer:
$9398.50
Step-by-step explanation:
Given

Required
Equivalent of 1,000,000 ALL
We have:

and

Cross Multiply


Solve for x

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<em> -- Approximated</em>
Answer:
x^2 + (y+1)^2 = 10^2
Step-by-step explanation:
Centre (p,q) = (0, -1)
radius, r = 10
General Equation of a circle
(x-p)^2 + (y-q)^2 = r^2
(x-0)^2 + (y- -1)^2 = 10^2
x^2 + (y+1)^2 = 10^2