Answer:
12 units²
Step-by-step explanation:
The area (A) of a trapezoid is calculated as
A = 
h (b₁ + b₂ )
where h is the perpendicular height and b₁, b₂ the parallel bases
Here h = 4 ( perpendicular distance between the bases ) and
b₁ = SR = 2, b₂ = TA = 4 , then
A = × 4 × (2 + 4) = 2 × 6 = 12 units²
Answer:
mean: 65
median: 9
Step-by-step explanation:
You take all the numbers you have and add them up. Make it simple by adding smaller numbers together. Then once you have the total which is 65 you divide it by the total of numbers you have and then round because after dividing you get 8.125 and the safest way to round is to 9.
answer
1.
Short answer: 0.69Take 100. 31% = 31, 100-31=69Of course, when you increase the result by 31 percent you do not get the 100 back. But that was not the question.But, for completeness what do I multiply by to get the number, when adding 31 percent, gives me the original number, it is 0.7633 (1/1.31)
2.
Your measure start at 16. So that is the basis (unless stated otherwise) upon which you reference the change.
That is:
16
20−16
is you fraction.
This gives:
16
4
→
16÷4
4÷4
=
4
1
For this to be a percentage we need the denominator such that it becomes 100. Thus we have:
4
1
→(
4
1
×1)→(
4
1
×
25
25
)=
100
25
To express this in the standard script form we have 25%
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