Use the rewritten formula to find the width of a rectangle with an area of 42 square inches and a length of 16.8 inches.
2 answers:
Answer:
The width of the rectangle is, 2.5 inches
Step-by-step explanation:
Given: The length of a rectangle is 16.8 inches , with an area of 42 square inches.
Since Area is 2- dimensional, it has length and width.
Area of Rectangle in square unit is given by multiplying the length by width.
The formula is given by:
Area of rectangle(A) = ......[1]
Substitute the value of Area (A) = 42 square inches and length = 16.8 inches in equation [1], to solve for width(w).
or
inches.
Therefore, the width of rectangle is, 2.5 inches.
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Answer:
There is a probability of 76% of not selling the package if there are actually three dead batteries in the package.
Step-by-step explanation:
With a 10-units package of batteries with 3 dead batteries, the sampling can be modeled as a binomial random variable with:
- n=4 (the amount of batteries picked for the sample).
- p=3/10=0.3 (the proportion of dead batteries).
- k≥1 (the amount of dead batteries in the sample needed to not sell the package).
The probability of having k dead batteries in the sample is:
Then, the probability of having one or more dead batteries in the sample (k≥1) is: