Answer:
-6
Step-by-step explanation:
y=-1/3(12)-2
=(-1/3x12/1)-2
=-4-2
y=-6
Answer: 4 years
Step-by-step explanation:
A(0) has to be amount at start. Assume that's 5mg
Then A(t) = 5×(0.5)^(0.25t) = 5×2^(-t/4),
(also known as 5 exp(-λ t) with λ = ln(2)/4, incidentally).
We need to such that A(t) = 2.5mg, or 2^(-t/4) is 1/2, which happens when -t/4 is -1, or t is 4.
Answer:
(a) y = -4x + 4 (b) y = 2x + 3
<u>solving steps:</u>
note: m refers to slope and y₁ to y point and x₁ to x point
a)
coordinates: (2,-4)
slope: -4
equation:
b)
coordinates: (1,5), (-1,1)
slope:
equation:
Answer:
Step-by-step explanation:
Put it into y=mx+b form and use substitution.
So,
If she keeps one-fourth for herself, she will keep:
72 * 0.25 = 18
That leaves the rest for her friends.
72 - 18 = 54
Her friends will get 54 "Suites."