Answer: d) (3, 3)
<u>Step-by-step explanation:</u>
Inverse is when you swap the x's and y's.
Let's look at the points and find their inverse:
f(x) f⁻¹(x)
(0, -2) --> (-2, 0)
(1, -1) --> (-1, 1)
(2, 0) --> (0, 2)
(3, 3) --> (3, 3) f(x) = f⁻¹(x) so this is where they intersect!
B(t)=50×e^2.5t
e^2.5t = 20
t= ln(20) / 2.5
set B(t)=1000 and solve for t via 1000=50e2.5t
20=e2.5t
ln(20)=2.5t
t=ln(20) / 2.5
Answer:
8
Step-by-step explanation:
Answer:
Step-by-step explanation:
2. 8x + y = 9
y = -8x + 9
3. x + 6y = -2
6y = -x - 2
y = -x/6 - 1/3
4. 4x + 3y = 9
3y = -4x + 9
y = -4x/3 + 3