Same number of rows to chairs in a row would form a square.
Use the total number of students as the area
Find the number or rows by taking the square root of student:
The square root of 7033 is 83.86
Round up to 84
Total seats would be rows x seats per row:
84 x 84 = 7,056 total seats
7056 seats - 7033 students = 23 empty seats
<h3>
Answer: 9 meters</h3>
===========================================
Work Shown:
- side a = 8
- side b = 5
- angle C = 88 degrees
Applying the law of cosines
c^2 = a^2 + b^2 - 2*a*b*cos(C)
c^2 = 8^2 + 5^2 - 2*8*5*cos(88)
c^2 = 64 + 25 - 80*cos(88)
c^2 = 86.2080403
c = sqrt(86.2080403)
c = 9.2848285
c = 9
Technically he needs 10 meters of rope because of the extra 0.28 portion, but I'll stick with 9 meters since your teacher said to round to the nearest whole number.
Answer:
What's the question?
Step-by-step explanation:
Answer:
We can use the sample about 42 days.
Step-by-step explanation:
Decay Equation:
Integrating both sides
When t=0, N= = initial amount
.......(1)
.........(2)
Logarithm:
130 days is the half-life of the given radioactive element.
For half life,
, days.
we plug all values in equation (1)
We need to find the time when the sample remains 80% of its original.
We can use the sample about 42 days.