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2 years ago

5. Which side lengths could not form a triangle?

Mathematics

2 answers:

romanna [79]2 years ago

6 0

Answer:

A, B, C, D

Step-by-step explanation:

A is equal to 54, B is equal to 23, C is equal to 72, and D is equal to 84.

brilliants [131]2 years ago

5 0

Answer: A

Explanation: To find out if three numbers are a triangle, you would add up the two lower numbers and see if its higher then the biggest number.

13 + 13 = 26.
26 is NOT bigger than 28, meaning it cannot form a triangle.

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Assume the given distributions are normal. Cucumbers grown on a certain farm have weights with a standard deviation of 2 ounces.

forsale [732]

Answer:

13.92

Step-by-step explanation:

We have that the critical z-score associated with 85% to the left is 1.04, we know that by table.

So we have to:

m + z * (sd) = 16

where m is the mean, z is the critical z-scor and sd is the standard deviation, if we replace we are left with:

m + 1.04 * (2) = 16

m = 16 - 1.04 * (2)

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Therefore, the average weight if 85% of cucumbers weigh less than 16 ounces is 13.92

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2 years ago

Assume that a procedure yields a binomial distribution with a trial repeated nequals30 times. Use the binomial probability formu

Irina-Kira [14]

Answer:

$P(X = 5) = C_{30,5}.(0.2)^{5}.(0.8)^{25} = 0.172$

Step-by-step explanation:

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 $C_{n,x}[\tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.[tex]C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

In this problem, we have that:

$n = 30, p = \frac{1}{5} = 0.2$

Use the binomial probability formula to find the probability of xequals5 successes given the probability pequalsone fifth of success on a single trial.

This is P(X = 5).

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

$P(X = 5) = C_{30,5}.(0.2)^{5}.(0.8)^{25} = 0.172$

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2 years ago