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anzhelika [568]
3 years ago
8

I don't need an answer, I just need someone to explain how to do it. <3

Mathematics
2 answers:
SpyIntel [72]3 years ago
7 0

Answer:

hi

Step-by-step explanation:

Proportions are two fractions (or rational numbers) that are equal to each other.

Fractions are considered equal if both the numerator and denominator can be multiplied or divided by the same constant to get the other fraction.

Fiesta28 [93]3 years ago
5 0
Hello whatever he/she said
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Does 5n = -20 have one solution,infinitley many,or no solutions?​
Maslowich
One solution.

-20 divided by 5 is equal to -4. Unless both sides have the same number or one side has -=0 then it’s one solution
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3 years ago
Can anyone help me with this
zloy xaker [14]

Simply the formula of an area is Length x Width

An expression is the core parts of an equation Ex. A + B

A - 11 * 3 (Expression)

B - 11 * 3x (Expression)

* = multiply (x)

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3 years ago
How does a set of integers differs from the set of whole numbers ? Please help
MariettaO [177]
The difference between set of whole numbers and a set of integers is that:

Whole numbers = {0, 1, 2, 3, 4, 5...}
Integers = {..., -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5...}

If we name contents of the first set as n, in the second set you can have 2n-1 numbers (because we count 0 only once in both sets).
7 0
3 years ago
Restaurateur Denny Valentine is evaluating two sites, Raymondville and Rosenberg, for his next restaurant. He wants to prove tha
Aleksandr-060686 [28]

Answer:

\bar X_1 represent the sample for the sample 1

\bar X_2 represent the sample for the sample 2

s_1 represent the deviation for the sample 1

s_2 represent the deviation for the sample 2  

n_1 = 81 represent the sample size for the group 1

n_2 = 81 represent the sample size for the group 2

And on this case if we create the system of hypothesis we have this:

Null hypothesis :\mu_1 -\mu_2 \leq 0

Alternative hypothesis: \mu_1 -\mu_2 >0

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".  

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".  

On this caseHe wants to prove that Raymondville residents (population 1) dine out more often than Rosenberg residents (population 2). So this statement need to be on the alternative hypothesis. And the complement of the alternative hypothesis would be on the null hypothesis.  

Solution to the problem

We assume that we have the following statistics:

\bar X_1 represent the sample for the sample 1

\bar X_2 represent the sample for the sample 2

s_1 represent the deviation for the sample 1

s_2 represent the deviation for the sample 2  

n_1 = 81 represent the sample size for the group 1

n_2 = 81 represent the sample size for the group 2

And on this case if we create the system of hypothesis we have this:

Null hypothesis :\mu_1 -\mu_2 \leq 0

Alternative hypothesis: \mu_1 -\mu_2 >0

5 0
4 years ago
Someone help me out my math grads are bad
agasfer [191]

Answer:

15m^2

Step-by-step explanation:

2m*3m = 6m^2

3m*3m = 9m^2

Answer: 6m^2 + 9m^2 = 15m^2

<em>Feel free to mark as brainliest :D</em>

7 0
3 years ago
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