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3 years ago

MATH MATH MATH MATH HeLp

Mathematics

2 answers:

Mila [183]3 years ago

6 0

Answer:

B is the correct option dear .

Step-by-step explanation:

Good luck ^_^

liberstina [14]3 years ago

3 0

Answer:

I think its B

Step-by-step explanation:

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Solve the inequality

AnnyKZ [126]

$x+15\geq9\qquad\text{subtract 15 from both sides}\\\\\boxed{x\geq-6}$

7 0

3 years ago

A student is assessing the correlation between the number of workers in a factory and the number of units produced daily. The ta

lukranit [14]

The number of units produced increases from 2 to 452 as the number of factory workers increases from 0 to 90, which gives;

Part A:

Yes there is a strong positive correlation

Part B:

The function is y = 5•x + 2

Part C:

The slope indicates the number of units produced by each worker daily

The y-intercept indicates that two units can be produced without workers.

<h3>How can the existence of a correlation and the best fit function for the data be found?</h3>

Part A:

The correlation is the relationship between variables based on statistical data.

From the given table, the difference between consecutive terms of the x and y-values are constant, therefore as the x-values increases, the corresponding y-value increases.

Change in x-values, ∆x = 10 - 0 = 20 - 10 = 30 - 20 = 10

Change in y-values, ∆y = 52 - 2 = 102 - 52 = 152 - 102 = 50

Therefore;

There is a strong positive correlation between the number of workers, x, and the number of units produced, y.

Part B:

Given that the rate of change of the x-values is constant, and the rate of change of the y-values is a constant, the function relating the x and y-values is a linear function, which can be found as follows;

Slope of the equation, m = ∆y/∆x

Which gives;

m = 50/10 = 5

y - 2 = 5•(x - 0)

The function that best fits the data is therefore;

y = 5•x + 2

Part C:

The slope of the function is the coefficient of the variable x in the equation, y = m•x + c

The slope of the plot, 5, indicates that each worker produces 5 units daily

The y-intercept of the function is the value of the constant term, c, in the equation, y = m•x + c

The y-intercept of the linear equation, y = 5•x + 2, which is 2, indicates that the initial number of units of products at the factory before workers arrive is 2.

Learn more about finding relationship between variables here:

brainly.com/question/4219149

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7 0

1 year ago

Determine which of the values is a solution of 14>22−2z. My options are 2, 5, 7, 3, -4, 0

ivann1987 [24]

Answer:

I think -4

Step-by-step explanation:

4 0

3 years ago

Need help will give brainliestttttttttttttttttt

Iteru [2.4K]

9514 1404 393

Answer:

10π meters

Step-by-step explanation:

The circumference of the island is given by ...

C = πd

For the given diameter, the circumference is ...

C = π(20 m) = 20π m

The penguin swam half that distance, so swam ...

(1/2)(20π m) = 10π m

The penguin swam 10π meters.

8 0

3 years ago

Help fast please

12345 [234]

Answer:

1. The set R ∪ S is the set of things that:

* have wheels or have engines

2. The set R ∩ S is the set of things that :

* have wheels and have engines

3. The set R′ is the set of things that :

* don't have wheels but do have engines

Step-by-step explanation:

Let's complete the sentences:

1. The set R ∪ S is the set of things that:

* have wheels or have engines

Let's recall that the union of two sets, R and S for our case, is the set of elements which are in R or in S or in both.

2. The set R ∩ S is the set of things that :

* have wheels and have engines

Let's recall that the intersection of two sets, R and S, is the set of elements that are common to both R and S.

3. The set R′ is the set of things that :

* don't have wheels but do have engines

Let's recall that the complement of a set, R is the set of all elements that are in the universal set but are not in R. R' = {x ∈ U : x ∉ R}.

Our universal set is the set of things that have wheels or have engines and the complement of R is the set of things that don't have wheels but do have engines.

3 0

3 years ago