Answer:
First, second, and fourth are true.
Step-by-step explanation:
Ok, so let's get to it.
The first statement is true, since 6 * 4 = 24.
The second statement is also true, since the 4 triangles are the 4 sides.
The third statement is false since they aren't congruent since they don't have a consistent ratio.
The fourth one is true, since 24(2) + 18.4 does indeed equal to 66.4
The fifth one is false since only the <u>base </u>has an area of 24.
:)
The amount of radioactive material remaining after 24 hours is 92.15 kg.
<h3>
Exponential function</h3>
An exponential function is in the form:
y = abˣ
where y, x are variables, a is the initial value of y and b is the multiplier.
Let y represent the amount of the substance after t hours.
From the equation, a = 100 mg
Also, after 6 hours:

After 24 hours:
y = 100(0.9966)²⁴ = 92.15 kg
The amount of radioactive material remaining after 24 hours is 92.15 kg.
Find out more on Exponential function at: brainly.com/question/12940982
Answer:
D
Step-by-step explanation:
Answer:
Part 1) 
Part 2) 
Step-by-step explanation:
Part 1)
we know that
The perimeter of triangle is equal to the sum of its length sides
so

Part 2)
we know that
The area of triangle is given by the formula

we have

substitute
