Add. 1/2+(−3/5) can u help me
2 answers:
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The dimensions of the rectangle are: length= 18 in and width =1 in.
<h3>Quadrilaterals</h3>There are different types of quadrilaterals, for example, square, rectangle, rhombus, trapezoid, and parallelogram. Each type is defined accordingly to its length of sides and angles. For example, in a rectangle, the opposite sides are equal and parallel and their interior angles are equal to 90°.
The area of a rectangle can be found for the formula : l*w, where b = length and w =width. The question gives that the area is 18 in².
For this question, the length exceeds its width by 17 inches - l=w+17. Thus, from the value of area given, you can find the values of the length and width of the rectangle.
A=l*w
18=(w+17)*w
18=w²+17w
w²+17w-18=0
Next step will be solve the previous equation ( W²+17W-18=0)
Therefore,
For dimensions, only positive numbers must be used. Then, the width is equal to 1 inch.
As, the area (l*w) is 18 in², you have.
18=l*w
18=l*1
l=18 in
Read more about the area of rectangle here:
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<h2>Answer with explanation:</h2>
Given : The probability that telephone bills mailed to house-holds in Hong Kong are incorrect.=0.01
<h2>Binomial distribution :-</h2>
If a sample of 10 bills is selected, then the probability that at least one bill will be incorrect :-
Hence, the probability that at least one bill will be incorrect =0.6513
<h2>Poisson distribution: </h2>
Mean :
Then , If a sample of 10 bills is selected, then the probability that at least one bill will be incorrect :-
Hence, the probability that at least one bill will be incorrect =0.6321