Answer: 55 inches
Step-by-step explanation:
Area of a trapezium is calculated by a + b/2 h
Where a is the base 1 given as 6inches
B is also a base 2 given as 14 inches
h is the height given as 5.5inches
Slot the values into the formula:
Area = (6 + 14/2) × 5.5
A= 20/2 × 5.5
A= 10 × 5.5
Area = 55inches
From the given discrete distribution, we have that:
<h3>What are the mean, the variance and the standard deviation of a discrete distribution?</h3>
- The mean of a discrete distribution is given by the sum of each outcome multiplied by it's respective probability.
- The variance is given by the sum of the difference squared between each observation and the mean, divided by the number of values.
- The standard deviation is the square root of the variance.
In this problem, the distribution is:
Hence, the mean is:
The variance is:
The standard deviation is:
More can be learned about discrete distributions at brainly.com/question/24855677
2*.75= 1.5
2(x+1.1)= 2x+2.2
2x+2.2+1.5
2x+3.7
the answer to the question is e
Answer:
137°
Step-by-step explanation:
So, both are equal to each other due to them being the same degree angle.
5x+7=8x-71
subtract 5x on both sides
7=3x-71
add 71 to both sides
77=3x
divide both sides by 3
77/3=x
x equals about 26
insert x into the problems
[5(26)+7]°
this equals 137°
[8(26)-71]°
this equals 137°