SA = 4 * (pi) * r^2......solving for (pi)
divide both sides by 4r^2
SA / (4r^2) = (pi)
Answer:
$104
Step-by-step explanation:
- First, find the employee’s hourly rate. You can do this by dividing the total amount earned by the total hours worked.
- Now that you know that the employee’s hourly rate is $13 per hour, you can multiply the hourly rate by the number of hours.
The answer would be
x² + 18x + 81 = 44 + 81
To complete the square, we look at the value of b (the coefficient of x). We take half of it, then square it; this is the number that gets added to both sides.
18/2 = 9; 9²=81
Therefore we add 81 to both sides.
A1=8
common ratio=r
sum of 6 terms
S=a1+a2+a3+...+a6
=a1(1+r+r^2+...+r^5)
=a1(r^6-1)/(r-1)
but we're given S=74648
=>
8(r^6-1)/(r-1)=74648
Cross multiply and solve for r (by trial and error)
r^6-1=9331(r-1)
r=6
so
a(3)=a1*r^(3-1)
=8*(6^2)
=288
How to factor 175:
Find the factors of 175:
1, 5², 7
**Remember that factoring by prime numbers will get the job done more efficiently!**
Hope this helps!
