Answer:
The exponential function that goes through
and
is
.
Step-by-step explanation:
Let be an exponential function of the form
that goes through
and
. Then, we have the following system of equations:
(1)
(2)
By dividing (2) by (1), we obtain the value for
:



And the value for
is found by (1):

The exponential function that goes through
and
is
.
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<em><u>hope it helps you see the attachment for further information...... </u></em>
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Answer: the one that cost the least amount of money? Nothing follows...
Step-by-step explanation:
(a) need to find the number of books, we'll call it "b". then the money (6w) minus the cost of books (17b) equals change left over (w)
6w - 17b = w
6w - w = 17b
5w = 17b
(5/17)w = b
(b) if w = 34
(5/17) *34 = b
10 = b
The average height of the fence is 2 m; its length is 20π m. So, its 2-sided area is
A = 2*(2 m)*(20π m) = 80π m² ≈ 251 m²
At 1 L/(100 m²), it will take 2.51 L of paint to paint both sides.