Researchers in Antarctica discovered a warm sea current under a glacier that is
causing the glacier to melt. The ice shelf of the glacier had a thickness of
approximately 450 m when it was first discovered. The thickness of the ice shelf is
decreasing at an average rate of 0.06 m per day.
Which function can be used to find the thickness of the ice shelf in meters x days
since the discovery?
A) t(x) = 450 - 0.06x
B) t(x) = -0.06(x – 450)
C) t(x) = -0.06(x – 7500)
D) t(x) = 450 + 0.06x
E) t(x) = -0.06(x + 450)
F) t(x) = -0.06(x + 7500)

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3

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step-by-step explanation: