Answer:
x = 2 - 5
, x = 2 + 5
Step-by-step explanation:
x² - 4x = 71
to complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 2)x + 4 = 71 + 4
(x - 2)² = 75 ( take the square root of both sides )
x - 2 = ± 
= ± 5 ( add 2 to both sides )
x = 2 ± 5
then
x = 2 - 5 , x = 2 + 5
In 20 years a family will be able to earn 35 450 dollars. The interest that they earned is 5.5% compounded monthly. Now, let's find out how much will they need to save monthly to get this amount in 20 year:
=> 12 * 20 = 240 months
=> 35 450 / 240 months = 147.7 dollars per month is the money with interest
Let's subtract the interest
=> 147.7 * 0.055 = 8.1 dollars.
=> 147.7 - 8.1 = 139.6 dollars per month.
THE ANSWER IS C IF I RECALL DOING THIS
What is 20% divided by 200?
20% ÷ 200 = ?
20% ÷ 200 = 0.001
20% divided by 200 is 0.001.
Answer:
113.0973355
Step-by-step explanation:
using this formula: 2 π r^2 + 2 π r h
