Answer:
Step-by-step explanation:
Find all solutions to the equation.
7 sin^2(x) - 14 sin x + 2 = -5
7sin^2(x)-14 sin x+7 =0
sin^2(x)-2sin x+1 =0
(sinx-1)(sinx-1)=0
sinx=1
x=π/2+2pi*k, k=integer
Answer:
Option A is right
Step-by-step explanation:
In any data set, we find that the range is the difference between maximum and minimum. The range cannot give full information about the variability of the data set.
Outliers are the ones which are either below Q1-1.5IQR or Q3+1.5IQR
Thus Inter quartile range, the difference between I quartile and III quartile gives a better idea about variability and also outlier.
Hence out of the four options given, we find that option B is the right one.
Option
A. The IQR is the best measure of variability because the distribution has an outlier.
Answer:it is only (x,y) -> (3x, 3y)
Step-by-step explanation: I just took the test and got it right,, hope it helped :)
Answer:
B
Step-by-step explanation:
First, count how many squares there are: 8 squares.
Now, count how many triangles there are: 6 triangles.
Ratio is simply the number of one thing divided by the number of the other. Here, since we want the ratio of squares to triangles, we have:
8 squares / 6 squares
We can simplify this to:
8 / 6 = 4 / 3
And finally, this can be written in the "ratio notation":
4 / 3 = 4 : 3
The answer is B.
