68% x 12 = 8.16
Multiply 68% by 12 to get answer
Answer:
p=(l+b) 2
p=38
l+ b= 38/2=19
if=7.
l=19-7
= 12
Step-by-step explanation:
Answer:
No real solutions.
Step-by-step explanation:
x² + 6x + 10 = 0
a = 1
b = 6
c = 10
D = b² - 4ac = 6² - 4*1*10 = 36 - 40 = - 4
- 4 < 0,
so this equation has no real solutions.
The properties of multiplication and division are an easier way when making calculations.
Let's see an example for each one.
Mutiplication:
Suppose we are going to multiply:
![2 * 89](https://tex.z-dn.net/?f=%202%20%2A%2089%20%20)
It is easier to make the product using the distributive property:
![2 * 89 = 2 * (80 + 9)\\2 * 89 = (2 * 80) + (2 * 9)\\2 * 89 = 160 + 18\\2 * 89 = 178](https://tex.z-dn.net/?f=%202%20%2A%2089%20%3D%202%20%2A%20%2880%20%2B%209%29%5C%5C2%20%2A%2089%20%3D%20%282%20%2A%2080%29%20%2B%20%282%20%2A%209%29%5C%5C2%20%2A%2089%20%3D%20160%20%2B%2018%5C%5C2%20%2A%2089%20%3D%20178%20%20)
Division:
Suppose we have the following division:
![\frac{2}{0}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B0%7D%20%20)
By properties of the division, we know that this division is not defined.
Therefore, when we see a division between 0, we know that the answer is that it is not defined.
Answer:
The rules of multiplication and division help to divide and multiply in a faster way.
In a bag there are 3 red, 3 yellow, 4 green, and 6 blue marbles. What is the probability of p ( blue ) ?