(x)(3x - 5) = 12
3x^2 - 5x = 12
3x^2 - 5x - 12 = 0
(x - 3)(3x + 4) = 0
x = 3, -4/3
The answer must be negative so the number is -4/3.
Hope this helps!
Answer:
a)
ways
b)
ways
c)
ways
Step-by-step explanation:
Combinatory means combination or arrangement of different elements.
If we have n total elements and we want to find in how many ways we can select x we can use this general formula:
![nCx= \frac{n!}{x! (n-x)!}](https://tex.z-dn.net/?f=%20nCx%3D%20%5Cfrac%7Bn%21%7D%7Bx%21%20%28n-x%29%21%7D)
Where ![n! = n *(n-1)!](https://tex.z-dn.net/?f=%20n%21%20%3D%20n%20%2A%28n-1%29%21)
a. How many different ways can four pieces be selected from the 12 colored pieces?
For this case we have:
ways
b. How many different ways can two orange pieces be selected from five orange pieces?
For this case we have:
ways
c. How many different ways can two brown pieces be selected from seven brown pieces?
For this case we have:
ways
Answer:
20
Step-by-step explanation:
Multiples of 5 are: 5, 10, 15, 20, 25, 30, 35, 40, etc. Each multiple is created by multiply 5 times some other number.
Surface area is like how much wrappin paper to wrap a present
anything to do with how much it can carry o it's volume aka capacity is not surface area
A is wrong, that's distance
B is correct
C, oval is not surface area, only distance
D is volume, how much concree
answe ri B
<span>One is divided by the product of 8 and a number.</span>