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sashaice [31]
3 years ago
11

The soccer field measures 80 meters by 120 meters. Which is the correct unit of measurement to figure out how much fertilizer is

needed to cover the field? m³ m² m
Mathematics
2 answers:
Dimas [21]3 years ago
7 0
M squared because since you need to find the area, and area is m squared, so the one with the 2.
Trava [24]3 years ago
5 0
It’s meters squared. Since you need to find the area in order to find the amount of fertilizer, the area is expressed as the unit squared.
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A machine making computer chips isn't working correctly, and 5% of the computer chips it makes are defective. If an inspector ch
Rainbow [258]

Answer:

0.25% probability that they are both defective

Step-by-step explanation:

For each computer chip, there are only two possible outcomes. Either they are defective, or they are not. The probability of a computer chip being defective is independent of other chips. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

5% of the computer chips it makes are defective.

This means that p = 0.05

If an inspector chooses two computer chips randomly (meaning they are independent from each other), what is the probability that they are both defective?

This is P(X = 2) when n = 2. So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 2) = C_{2,2}.(0.05)^{2}.(0.95)^{0} = 0.0025

0.25% probability that they are both defective

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I think the answer is j
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Step-by-step explanation:

60 + 48 = 108 minutes

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