Answer:
We often see patterns or relationships in scatter plots. When the y variable tends to increase as the x variable increases, we say there is a positive correlation between the variables. When the y variable tends to decrease as the x variable increases, we say there is a negative correlation between the variables.
Answer:
88 divided by 8 is 11.
Step-by-step explanation:
You can't use the distributive property for this problem because there is no distributing to be done, but the answer is 11.
Answer:
see explanation
Step-by-step explanation:
given x² = 17 → take the square root of both sides
= ±
x = ±
Answer:
k=7 or k=13
Step-by-step explanation:
I I is absolute value
Ik-10I=3 I13-10I=3 k=13
Ik-10I=33 I7-10I=3 I7-10I=-3 I-3I=3 k=7
For solving these equation, it is important to isolate the variable to then solve it.
In this first equation,
3(4+x)=x+6
12+3x=x+6
12+2x=6
2x=-6
x=-3
to prove this, just substitute x value back into equation;
3(4-3)=-3+6
3(1)=3
3=3
Same for the next equations;
1+2x-x=x-5+x
1+x=2x-5
1=x-5
6=x
Then substitute this value back into equation;
1+2(6)-6=6-5+6
1+12-6= 12-5
7=7