Answer:
-1199
Step-by-step explanation:
To solve this, we must use PEMDAS
1. using this, we see that we must first solve anything having to do with exponents so:
4^2 = 16
2. Then we must solve any multiplication or division (whichever comes first). So in this case:
5 x 243 = 1215
3. We are now left with 16 - 1215 so we simply subtract
16 - 1215 = -1199
Answer:
C
Step-by-step explanation:
First of all,
- if the line goes Upward (from left to right), it is sloping upward and the correlation coefficient would be POSITIVE.
- If the line goes Downward (from left to right), it is sloping downward and the correlation coefficient would be NEGATIVE.
Since, from the graph we can see that the line is sloping upward, we know the correlation coefficient would be POSITIVE, so we can immediately eliminate choices A & B.
Now, the closer the correlation coefficient value is to 0, the less steep the line is. The closer it is to 1, the more steeper it is.
Looking at the graph, it isn't that flat, it is quite steep. So the correlation coefficient would be 0.8, NOT 0.1
So, answer choice C is right.
Answer:
y= ¼x
Step-by-step explanation:
<u>Slope-intercept </u><u>form</u>
y= mx +c, where m is the slope and c is the y-intercept.
Slope
Substitute the value of the slope into the equation:
y= ¼x +c
To find the value of c, substitute a pair of coordinates.
When x= 12, y= 3,
3= 3 +c
c= 3 -3
c= 0
Thus, the equation of the line is y= ¼x.
Answer:
4
Step-by-step explanation:
[45-27]÷9·2
18÷9·2
2·2
