Given: y²+5y
Converting y²+5y in the form: x²+2ax+a²
Here 2a=5 or a=5/2
Add and subtract (5/2)²
y²+5y+(5/2)²-(5/2)²
Complete the square.
(y+5/2)²-(5/2)²
Simplify
(y+5/2)² - 25/4
Answer: (y+5/2)² - 25/4
Answer: 6 years
Step-by-step explanation:
Let Maria's age be x
Jonathan is four times Maria's age. This means that Jonathan age = 4x
In 3 years, he will be three times as old as Maria is then. This can be written as:
4x + 3 = 3(x + 3)
4x + 3 = 3x + 9
4x - 3x = 9 - 3
x = 6
Maria is 6 years
Answer:
3.75 cups
Step-by-step explanation:
Given that :
5 cups of liquid lemonade concentrate is mixed with 2.5 cups of water to make lemonade
5 cups of lemonade = 2.5 cups of water
Ratio :
5 / 2.5
For 2.5 cups of lemonade :
5 / 2.5 = 0.5
Multiply :
5 / 2.5 * 0.5 / 0.5
2.5 / 1.25
Hence, 2.5 cups + 1.25 cups = 3.75 cups of lemonade will be made with 2.5 cups of liquid lemonade concentrate
I really don’t know look it up or something
Answer:
The half life is 14.4 seconds because the half life is the time it takes for half of a sample to decay.
Hope this helps!
