Answer:
1 day: 4480
2 days: 8960
3 days: 13440
---- function inverse
Step-by-step explanation:
Given
Solving (a): The amount present after 1 day.
Here,
So:
Solving (b): The amount present after 2 days.
Here,
So:
Solving (c): The amount present after 3 days.
Here,
So:
Solving (d): The inverse function of:
Replace f(x) with y
Swap x and y
Rewrite as:
Divide by 4
Take square roots
Replace y with function inverse
is their a picture if not lmk
Answer:
We have that y = 21 when x = 11.
Step-by-step explanation:
We solve this question by proportions, using a rule of three.
Since they vary inversely, we apply the inverse rule of three, that is, with lateral multiplication instead of diagonal.
33 - 7
y - 11
So
11y = 33 -7
y - 11
Dividing both sides by 11
Y = 3 * 7 = 21
We have that y = 21 when x = 11.
Answer:
Step-by-step explanation:
7(x-5)²=63
(x-5)²=63/7
(x-5) = +/- 3
x = 5 + 3
or
x = 5- 3
x = 8 or 2