Answer:
Option C. ∠PQT and ∠TQS are supplementary.
Step-by-step explanation:
When the addition of two angles give 180° Then the pair of angles is called as supplementary.
Means we have to search the angles which are on a straight line.
Option A. ∠PQT and ∠PQS sum is more than 90 but less than 180.
Option B. ∠PQT and ∠TQS sum of these angles is 90°
Option C. ∠PQT and ∠TQR sum is 180° so pair is supplementary
Option D. ∠TQS and ∠SQR sum is less than 180°.
Therefore option C is the answer.
4 is the greasy common factor
<span>Let us assume that the rate of decay follows a 1st
order reaction. Therefore the formula for rate of decay is:</span>
<span>A = Ao e^-kt --->
1</span>
Where,
A = final value after time t
Ao = initial value at t zero
k = rate constant
t = time elapsed
First let use find for the value of constant k. We know
that the formula for half-life is:
t-half life = ln 2 / k
Finding for k:
5730 = ln 2 / k
k = 1.21 * 10^-4 yr^-1
Since it is stated that A = 0.00061 Ao, therefore
substituting all the values into equation 1:
0.00061 Ao / Ao = e^(-1.21 * 10^-4 yr^-1 * t)
Finding for t:
t = 61,173.98 years
<span>The person died about 61,174 years ago.</span>
Answer: 2.723 gallons
Step-by-step explanation:
For this question, we have to find an appropriate conversion factor to help determine how many gallons of paint will be needed to paint the wall.