What is the area of the composite figure?
2 answers:
Answer:
area of the compostie figure = 34 squre units
Step-by-step explanation:
To find the area of this composite figure , first find the area of the trapezoid
then we subtract the area of rectangle (white part of the figure at the bottom)
Area of the trapezoid = (base1+base2)/2 times height
base 1= 10
base 2=6, height = 5
Area of a trapezoid = = 40
Area of the rectangle = length * width
= 3*2= 6
Now area of the compostie figure = 40 - 6= 34 squre units
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Answer:
(b) 1/792
Step-by-step explanation:
The complete question is;
<em>Counting: Grading One professor grades homework by randomly choosing 5 out of 12 homework problems to grade.</em>
<em>(a) How many different groups of 5 problems can be chosen from the 12</em>
<em>problems?</em>
<em>(b)Probability extension: Jerry did only 5 problems of one assignment. What is the probability that the problems he did comprised the group that was selected to be graded?</em>
<u>In (a)</u>
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Apply the formula
where n=12 and r=5
substitute values
In (b)
If Jerry did only 5 problems of one assignment then the probability will be
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