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Stells [14]
3 years ago
5

Guys please help, ill give brainliest to the right answer

Mathematics
2 answers:
anygoal [31]3 years ago
8 0

Answer:

Associative Property of Addition

Step-by-step explanation:

Here, in the second line, there are plus signs (+'s), indicating this is addition. But this time, unlike the first line, the numbers are grouped together with parentheses. When numbers are grouped with parentheses, it means it is the Associative property. Because we are adding, it's the associative property of ADDITION.

Hope this helped!

aev [14]3 years ago
5 0
This is A. The answer is A
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If one candy bar weighs 3 ounces, what is the weight of 11 candy bars?
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Step-by-step explanation:

11 x 3 = 33

33 oz = 2.0625 lb or 2 lb

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In a candy bar, 165 calories are from sugar. There are 250 calories in the candy bar. What percent of the calories are from suga
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3 years ago
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On a multiple-choice test. Abby randomly guesses on all seven questions. Each question
Murrr4er [49]

Answer:

0.173 probability that she gets exactly three questions correct.

Step-by-step explanation:

For each question, there are only two possible outcomes. Either she guesses the correct answer, or she does not. The probability of guessing the correct answer for a question is independent of other questions. 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.

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This means that n = 7

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Find the probability to the nearest thousandth, that Abby gets exactly three questions correct.

This is P(X = 3).

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8 0
3 years ago
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