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3 years ago

Combine like terms -5r-3r

Mathematics

2 answers:

Ierofanga [76]3 years ago

5 0

Combine like terms. Note that both have the same amount of variables

-5r - 3r = -8r

-8r is your answer

~<em>La Pucelle</em>

Lorico [155]3 years ago

4 0

since they both have the same variables you can take them off and add them to the end of the answer so -5-3 =-8 then you can add the r at the end which would make -8r

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Vladimir79 [104]

Answer:

5.80% probability that exactly 1 resume will be from females.

Step-by-step explanation:

For each resume received by the corporation, there are only two possible outcomes. Either they are from a female, or they are not. The probability of a resume received being from a female is independent from other resumes. 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.

22% of all resumes received by a corporation for a management position are from females.

This means that $p = 0.22$

18 resumes will be received tomorrow.

This means that $n = 18$

What is the probability that exactly 1 resume will be from females?

This is P(X = 1).

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

$P(X = 1) = C_{18,1}.(0.22)^{1}.(0.78)^{17} = 0.0580$

5.80% probability that exactly 1 resume will be from females.

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Consider the following system of equations 2x+3y=45 x+y=10 what is the x value of the solution for this system

scZoUnD [109]

2x + 3y = 45
x + y = 10......y = 10 - x

2x + 3(10 - x) = 45
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and y = 25

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