Answer:
53.3
Step-by-step explanation:
Add one standard deviation to the mean:
45 +1(8.3) = 53.3
X is any number between -1 and 6.
Numbers x can be:
x=-1
x=0
x=1
x=2
x=3
x=4
x=5
x=6
Answer:
In 517 ways
Step-by-step explanation:
There are total 6 people in ballot and voters can vote for any 4 we have following choices
Voter may not vote for anyone then
Since, and
Here, n=6 and r=0 we will get
Voter may not vote for one of them then
Voter may not vote for two of them then
Voter may not vote for three of them then
Voter may not vote for four of them then
Total ways in which a person can vote is
+ + + +
Substituting the values we will get
[tex]1+6+30+120+360=517[/text] ways.
Answer:
f(x) = (1/2)(x-2)^2(x+1)(x+2)
Step-by-step explanation:
You can determine this by looking at the zeroes of the graph. For any zero that goes through the x-axis, the power of that zero is odd. For any zero that that "bounces" from the x-axis, the power of that zero is even.
Starting from left to right, we can see that the first zero, -2, goes through the x-axis. That means (x+2) is raised to an odd power. The second zero, -1, also goes through, so (x+1) is raised to an odd power. The last zero, 2, bounces off the x-axis, so (x-2) is raised to an even power. The only functions that satisfy this criteria are function 1 and 2.
However, we are not done yet. We need to figure out which multiplier value (1/2, 1/4) is correct. To do this, we plug in 0 for x, since we know that the y-intercept is 4. When we plug in 0, we see that f(0) = 4 for the first function. Therefore, the first function is the answer.
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Answer:A
Step-by-step explanation:
The slope is -3 (You can do rise over run or (y2 - y1)/(x2 - x1)) and the y-intercept is 4,so the equation is y=-3x+4