Answer: y2/10
Step-by-step explanation:
Since, this is parallelogram
so, opposite sides are equal
We will find value of sides
Calculation of AB:
we are given point A=(-2,3)
point B=(4,0)
we can use distance formula

now, we can plug values


Since, this is parallelogram
so, opposite sides are equal
so,

Calculation of AD:
point A =(-2,3)
point D=(-5,2)
we can use distance formula

now, we can plug values


Since, this is parallelogram
so, opposite sides are equal
so,

Calculation of AE:
point A=(-2,3)
point E=(-3,1)
we can use distance formula

now, we can plug values


(a)
we know that
perimeter of a parallelogram is sum of all sides
so,
perimeter is

now, we can plug values

...........Answer
(b)
we can use area of parallelogram formula

we can plug values

............Answer
The answer will be Mean = 135 Variance = 62 and Standard Deviation = 8
<h3>What is the standard deviation? </h3>
Standard deviation is defined as the amount of variation or the deviation of the numbers from each other.
Given that :
Proportion (p) = 54%
Sample size (n) = 250
Using Normal approximation :
Mean = np
Mean = 250 * 0.54 = 135
Variance = npq ; q = 1 - p = 1 - 0.54 = 0.46
Variance = (250 * 0.54 * 0.46) = 62.1 = 62
Standard deviation = √variance = √62.1
Standard deviation = 7.8803553 = 8
To know more about standard deviation follow
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Answer:
Try 7986
Step-by-step explanation:
(a+b) × height ÷ 2
(a+b are the parallel sides)
102+140=242 ×66= 15972 ÷2= 7986