Answer:
The slopes of OA, OB ans OC are integer values.
Step-by-step explanation:
If a line passing through two points then the slope of the line is

If one point is origin then the slope of the line is

The slope of line OA is

It is an integer.
The slope of line OB is

It is an integer.
The slope of line OC is

It is an integer.
The slope of line OD is

It is not an integer.
The slope of line OE is

It is not an integer.
The slope of line OF is

It is not an integer.
Therefore the slopes of OA, OB ans OC are integer values.
#18. C. 1&3
This is be cause when you simplify to y=.. for 4y=3x and 8y=6x, they both turn out to be y=3/4x. The constant of proportionality is 3/4 because both equations simplify to have that as a constant.
#19. D
Kathy can add less than or equal to 7 books to her suitcase.
To cross off the first two choices(A&B), you input a number above 7 and then multiply it by 1 3/4 . Add it to 37 1/2 and it will be more than 50, meaning it will not fit since the suitcase can’t have more than 50 pounds in it.
To cross off C, you would multiply 1 3/4 by 7 and get 12.25. Add 12.25 to 37 1/2 and you will get 49.75 . This result would mean that you can have less than 7 books or just 7 books, leaving the answer to be D.
<u>Answer:</u>
Events A and B are not independent because P(A|B) ≠ P(A).
<u>Step-by-step explanation:</u>
We are given that the probability of a student scoring 75% in class work is 0.64, and the probability of a student scoring 85% is 0.45.
Given that a student scores 85%, it means he must have scored 75% too.
It means that event B is dependent on event A.
Therefore, events A and B are not independent because P(A|B) ≠ P(A).
Answer:
8
Step-by-step explanation:
first you should convert anyone of them to the other
1 ft = 12 in
the ratio = 96/12 = 8
Y = mx + b
7x + 8y = -12
Subtract 7x from both sides
8y = -7x - 12
Divide each side by 8
y = -7/8x - 12/8
Simplify
y = -7/8x - 3/2
So besides simplifying, if I’m doing this correctly, it should be correct.