Answer:
A) $15
Step-by-step explanation:
let x represent the regular price of the mirror
so, 20% of x = 3
20/100 * x = 3
20x = 300
x = 300/20
x = 15
Hence, the regular price of the mirror is $15
Well, when you say which pair, I would expect that there would be some choices to choose from... if it is one of the choices, I would go with
a point and a line.
<span>nine hundred eighty million in scientific notation is shown as 9.8*10^8.</span><span /><span>Scientific </span><span>notation</span><span> is the way that scientists easily handle very large numbers or very small numbers.</span>
Using the binomial distribution, it is found that about 75 batteries each day are defective.
For each battery, there are only two possible outcomes, either it is defective, or it is not. The probability of a battery being defective is independent of any other battery, hence the <em>binomial distribution</em> is used to solve this question.
<h3>What is the binomial probability distribution?</h3>
It is the <u>probability of exactly x successes on n repeated trials, with p probability</u> of a success on each trial.
The expected value of the binomial distribution is:
In this problem:
- 3 out of 20 batteries are defective, hence p = 3/20 = 0.15.
- Each day, 500 batteries are produced, hence n = 500.
Then:
About 75 batteries each day are defective.
More can be learned about the binomial distribution at brainly.com/question/14424710
Answer:ddddd
Step-by-step explanation:
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