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OLga [1]
3 years ago
8

Negative five teen divided by three

Mathematics
1 answer:
shutvik [7]3 years ago
6 0

Answer:

-5

Step-by-step explanation:

-15/3=-5

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Seventy-six percent of sunflower seeds will germinate into a flower, and a sample of 800 such sunflower seeds is randomly select
ollegr [7]

Answer:

12.08

Step-by-step explanation:

For each sunflower, there are only two possible outcomes. Either it germinates, or it does not. The probability of a sunflower germinating is independent of other sunflowers. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The standard deviation of the binomial distribution is:

\sqrt{V(X)} = \sqrt{np(1-p)}

Seventy-six percent of sunflower seeds will germinate into a flower

This means that p = 0.76

Samples of 800:

This means that n = 800

The standard deviation for the number of sunflower seeds that will germinate in such samples of size 800 is:

\sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{800*0.76*0.24} = 12.08

5 0
3 years ago
For what value of x is the rational expression below equal to zero?<br> 2-X<br> 2 + x
s344n2d4d5 [400]

Answer:

2

Step-by-step explanation:

If you divide 0 by any number you will get 0

If you will substitute x for 2 you will have:

2-2/2+2=0/4=0

3 0
3 years ago
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Evaluate 10 + 8÷4 - 12
Kryger [21]

Answer:

0

Step-by-step explanation:

evaluate 10 + (8÷4) - 12

3 0
1 year ago
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Ben has a 40% chance of being selected as the president of the school sports club and a 70% chance of being elected editor of th
MatroZZZ [7]
40% x 70% will give you the answer in percent.
.4     x .7 = .28    He has a 28/100 chance or 7/25 chance (reduced).
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What is a counterexample?◑〰️◑ please help
Strike441 [17]

Answer:

A counterexample is a specific case which shows that a general statement is false. Example 1: Provide a counterexample to show that the statement. "Every quadrilateral has at least two congruent sides" is not always true.

7 0
3 years ago
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