What is a diameter and what is a radius?

2 answers:

5 0

Radius is the length of the line segment from the center of the circle to an endpoint on the circle and diameter is twice the length of the radius of the circle.

Alisiya [41]1 year ago

4 0

A radius is where a segment from the center to the circle.
A diameter is a segment passing through side to side through the center.
- The radius is going to be HALF of what the diameter is.

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Please help with this question

alekssr [168]

Step-by-step explanation:

so, that means we want to find the time t (days) after which N = No/2

because "half-life" means the amount of time until half of the substance has disappeared (or transformed into something else).

so, we have

No/2 = No × e^(-0.1481×t)

No = 2× No × e^(-0.1481×t)

1 = 2×e^(‐0.1481×t)

1/2 = 0.5 = e^(-0.1481×t)

ln(0.5) = -0.1481×t