The missing length is 12km (i never promised anything xd)
Answer:
x =-5 and y = -6
Step-by-step explanation:
In order to get the answer, I used the elimination/addition method
8y-9x= -3 <— I decided to eliminate the y
5y-8x= 10 <— I decided to eliminate the y
5(8y-9x = -3) <— switch up the number of y from the bottom to multiply
-8(5y-8x= 10) <— switch up the number of y from the top to multiply, but have a negative sign to it
So...our new equation will be....
40y - 45x = -15
+ -40y + 64x = -80
________________________
19x = -95
x = -5
8y-9x= -3
8y-9(-5) = -3
8y+45 = -3
- 45 = - 45
8y = -48
y = -6
Answer:
4th option
Step-by-step explanation:
The given expression is:
In order to simplify this expression we have to multiply and divide it with the conjugate of the denominator i.e multiply and divide the entire expression with , as shown below:
Thus, 4th option gives the correct answer.
Answer:
1) Normal distribution-------------- A distribution that takes on the shape of a bell curve.
2) Standard Normal distribution--------A normal distribution with a mean 0 and a standard deviation of 1.
3) deviation----------------- difference between any value and the mean of
the set.
4) frequency distribution--------- organizes data into categories called
classes.
5) range---------- difference between the smallest term in the data and
the largest term in the data set.
6) standard deviation----------- square root of variance.
7) Variance------------ square of the standard deviation.
8) z-score------------- deviation of a value x from the mean of the sample
divided by the standard deviation.
Recall that
.
If you know the Maclaurin series for
, finding this expansion should be easy.