2n-5=21
add 5 to both sides
2n=26
divide both sides by 2
n=13
I hope I helped! :)
No the points have to be on a cross on the x and y axis
Answer:
y=-2x+6 and y=4x
Step-by-step explanation:
If you graph these two, the point where the two lines intersect is (1,4).
Answer:
i sry i need points
Step-by-step explanation:
The amount of the radioactive substance is 374.6 g
<h3>How to determine the amount of
radioactive substance?</h3>
The given parameters are:
- Initial, a = 424 mg
- Rate, r = 6%
- Time, t = 2 hours
The amount of the radioactive substance is calculated as:
A(t) = a(1 - r)^t
This gives
A(t) = 424 * (1 - 6%)^t
At 2 hours, we have:
A(2) = 424 * (1 - 6%)^2
Evaluate
A(2) = 374.6
Hence, the amount of the radioactive substance is 374.6 g
Read more about exponential functions at:
brainly.com/question/2456547
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