The answer is C-2x because you can substitute a number between -1 and 0 for x, so for example .5, and try out all the choices with .5. Ultimately you get 2(.5) as the largest number, so the answer is C.
Answer:
No
Step-by-step explanation:
We can not determine that the low test scores are caused by sleep deprivation. Because there are many factors that can affect on a student's test score such as:
- not carefully review all the lesson before the test
- the feeling of nervous in the exam room
- poor academic ability
- ....so on
So, getting less than 8 hours of sleep is just one of the independent variables determining the test score, it is not a strong correlation.
Answer:
Answer 1 : 25/4
Answer 2 : 1/19
Step-by-step explanation:
Question 1:
x + 3x = 25
4x = 25
x = 25/4
Question 2:
2x+36x=2
38x = 2
x = 2/38
x = 1/19
Step-by-step explanation:
10x-(-7+6x)
10x+7-6x
10x-6x+7
4x+7
Answer:
No.
Step-by-step explanation:
y=4x
4=(2)
4≠8
