Answer:
The answer to your question is the third choice.
Step-by-step explanation:
a) 6x - 5y = 8
12x - 10y = 16
We observe that these lines are the same so they have infinite solutions.
b)
7x + 2y = 6
14x + 4y = 16
These lines are parallel because they have the same slope, so they do not cross, there is no solution.
c)
8x - 3y = 10
16x - 6y = 22
These lines are parallel because they have the same slope, so they do not cross, there is no solution.
d)
9x + 6y = 14
18x + 12y = 26
These lines are parallel because they have the same slope, so they do not cross, they do not have an infinite number of solutions.
Answer:
[See Below]
Step-by-step explanation:
C.
The solution to this is x ≤ 4.
So then we look at the graphs and choose the correct one.
When the sign is ≤ it's like an arrow whatever way it's pointing it goes that way. In this case it'd go the other way even though the sign is ≤, because the solution is stating 4 is greater then or equal to so it can't be less than 4. And the only option of +4 and higher is C.
We must find UNIQUE combinations because choosing a,b,c,d... is the same as d,c,b,a...etc. For this type of problem you use the "n choose k" formula...
n!/(k!(n-k)!), n=total number of choices available, k=number of choices made..
In this case:
20!/(10!(20-10)!)
20!/(10!*10!)
184756
Answer:
The answer is b.
Step-by-step explanation:
Answer:
-200, 3, 10, -8, 2, -7
Step-by-step explanation:
1. A drop of 200 feet
Integer Value =-200
A point of zero means there is no decrease/increase in the height. No drop from present point.
2. An expansion of 3 cubic meters
Integer Value =3
A point of zero means there is no expansion.
3. Earn 10 points
Integer Value=10
A point of zero means there is no increase in points. No point is earned or added.
4. Reduce by 8 inches
Integer Value=-8
A point of zero means there is no change in the length of height of the given object.
5. Gain 2 pounds
Integer Value=2
A point of zero implies no pound or weight was gained.
6. A drop of 7 degrees
Integer Value=-7
A point of zero implies that there is no change in degrees.