Which algebraic expression is equivalent to the expression below?

Mathematics

2 answers:

anzhelika [568]3 years ago

5 0

Answer:

Step-by-step explanation:

Combine like terms 4n can only be added with 7n and 14 can only be added to 6

aleksandr82 [10.1K]3 years ago

4 0

Answer:

11n + 20

Step-by-step explanation:

Because all of the signs are + , the parentheses can be removed.

Next, combine like terms:

4n + 14 + 6 + 7n = 11n + 20

None of the three given possible answers is correct.

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Andrej [43]

Answer: D
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4 0

2 years ago

The number 4 is in both the domain and the range of the function A(n).

Pani-rosa [81]

Answer:

False

Step-by-step explanation:

the domain is the set of numbers you can plug in, and the range is what comes out

4 is shown in both ovals, but we see that there is no arrow pointing from the left oval to the 4 in the right oval, meaning that no value in interval [1,5] has a value of 4.

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3 years ago

If you have 66 data observations in a sample, how many classes (bins) does the sturges' rule recommend for you to construct a fr

Iteru [2.4K]

According to Sturge's rule, number of classes or bins recommended to construct a frequency distribution is k ≈ 7

Sturge's Rule: There are no hard and fast guidelines for the size of a class interval or bin when building a frequency distribution table. However, Sturge's rule offers advice on how many intervals one can make if one is genuinely unable to choose a class width. Sturge's rule advises that the class interval number be for a set of n observations.

Given,

n = 66

We know that,

According to Sturge's rule, the optimal number of class intervals can be determined by using the equation:

$k=1+log_{2} n$