Uhhhh I don't think that the correct answer.
First, find the gradient of the line segment.
Gradient = Rise/Run = (2-6)/(2-5) = 4/3.
Since the other line segment is parallel to this line segment, their gradients are the same.
That means (-2+4)/(x-5) = 4/3.
2/(x-5) = 4/3
It is obvious x = 6.5
Answer: option a.
Step-by-step explanation:
By definition, we know that:
Substitute into the first equation, solve for the cosine and simplify. Then, you obtain:
As then :
Now we can find :
Answer:
She can take 2 people cause it’s less than 5
Step-by-step explanation:
Answer:
A and C
Step-by-step explanation:
The absolute value of a negative number is positive; I don't know why A and C are identical though
Answer: 5 classes.
Step-by-step explanation:
You can use the rule to determine the number of classes for a frequency distribution.
The rule says that where
is the number of classes
is the number of the data points
We know that the number of data points is = 20.
Next, we start searching for so that we can get a number 2 to the that is larger that the number of data points.
This suggests that you should use 5 classes.