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tekilochka [14]
3 years ago
6

Two numbers are between 20 and 30. their greatest common factor is 4.Which two numbers could they be?

Mathematics
1 answer:
Andrew [12]3 years ago
7 0
24 and 28
These are the only two numbers (other than 20 itself) that have a factor of 4. And if you were to find all of their common factors, 4 would be the greatest!

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Simplify (-12x^3)(6x^7)
zysi [14]
-72x^10 would be the correct answer
3 0
3 years ago
|n/2 − 1/3| −1= 1/6
weqwewe [10]
1. n/2-1/3-1=1/6
n/2=1/6+1/3+1
n/2=1/6+2/6+6/6
n/2=9/6=3/2
n=3/2*2=3

check: abs(3/2-1/3)-1=1/6,    abs(9/6-2/6)-1= 1/6, 7/6-1=1/6, 1/6 =1/6 
3 is a root

2. -(n/2-1/3)-1=1/6
-n/2+1/3-1=1/6
-n/2-2/3=1/6
-n/2=1/6+2/3
-n/2=1/6+4/6
-n/2=5/6
n=-2*5/6=-5/3=-1 2/3  
check :    abs((-5/3)/2-1/3) -1=1/6
abs(-5/6-1/3) -1 =1/6,     abs(-5/6-2/6) -1=1/6, abs (-7/6)-1=1/6,  7/6-1=1/6, 1/6=1/6
so -5/3 or -1 2/3  is also root

so  two roots 3 and -5/3(that can be written as -1 2/3)

5 0
3 years ago
How do I solve 15+5-5/12. please give me the steps
gregori [183]
1) You must do division first. So divide 5/12 and get .41666666... 
2) Then you add 15+5 and get 20.
3) Finally you subtract 20 and .41666666... and you get 19.5833333...
4) you can simplify 19.583333... to 19.584 if you need to.
7 0
3 years ago
Find a basis for the row space and column space of a matrix and the rank .
ANEK [815]
......................
7 0
2 years ago
ANSWER PLEASE !!<br> -2x-5=10<br> 4x+2y=8<br> -6x+2y=12
son4ous [18]

Answer:

x= -15/2 y=-33/2

Step-by-step explanation:

i dont know how you want to solve it but if it is "system of equations" then first solve for the first variable in on e of the equations, then substitute the result into the other equation.

6 0
2 years ago
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