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baherus [9]
3 years ago
11

George drew a diagram at the right to represent the number two and two fiths look said Helena this is the same thing as twelve f

iths ​
Mathematics
1 answer:
xxMikexx [17]3 years ago
3 0

That's true: you have

2\dfrac{2}{5}=2+\dfrac{2}{5}=\dfrac{10}{5}+\dfrac{2}{5}=\dfrac{10+2}{5}=\dfrac{12}{5}

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Answer:

2. c

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4 0
3 years ago
1. (Sec. 6.1) In a random sample of 80 components of a certain type, 12 are found to be defective. (a) Give a point estimate for
denis-greek [22]

Answer:

(a) 0.85

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Step-by-step explanation:

(a) The point estimate for the proportion of all such components that are not defective is given by the number of non-defective units in the sample divided by the sample size:

p=\frac{80-12}{80}\\p=0.85

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(b) Assuming that the sample is large enough to accurately provide a point estimate for the whole population, this can be treated as a binomial model with probability of success (non-defective part) p = 0.85. Since both components must be non-defective for the system to work, the probability of two successes in two trials is:

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3 years ago
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Answer:

There is a group anxiously waiting to start their triathlon. They are in the sand getting ready for the first leg of the race…the swim!  They have roped off a rectangle of the beach that is 200 yards long and 10 yards wide.  The athletes are packed in trying fighting for the front. If we assume that 10 athletes can occupy 25 square feet, how many triathletes are?

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Step-by-step explanation:

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