Which of the following expressions is completely simplified?

Mathematics

1 answer:

Dafna11 [192]3 years ago

5 0

What are the answer choices??

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Does this table of values represent a linear relationship? Explain your answer.

eduard

Answer:

Yes

Step-by-step explanation:

Yes, because there is a constant rate of change. It is and will always be constantly increasing by 1.5.

To be a linear line you have to have a constant rate of change.

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2 years ago

What is the common ratio of the following sequence? 80, 20, 5, ... A) -4 B) 1/4 C) 4

Stolb23 [73]

$\bf 80~~,~~20~~,~~5~\hfill \cfrac{20}{80}\implies \boxed{\cfrac{1}{4}}~~,~~ \cfrac{5}{20}\implies \boxed{\cfrac{1}{4}}~\hfill \stackrel{\textit{common ratio}}{\boxed{\cfrac{1}{4}}}$

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3 years ago

The mean of a set of data is 148.87 and its standard deviation is 68.29. Find the z score for a value of 490.19.

Ksivusya [100]

The mean of a set of data is 148.87 and its standard deviation is 68.29. Find the z score for a value of 490.19
the z-score is given by:
z=(x-μ)/σ
plugging in the values in the expression we get:
z=(490.19-149.87)/68.29
z=340.32/68.29
z=4.9835

6 0

3 years ago

PLEASE HELPP

agasfer [191]

Answer:

The solution to the system of equations be:

$x=3,\:y=-1$