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valkas [14]
3 years ago
5

Which of the following is not a possible r-value? A.0.3 B.-0.3 C.-1.6 D.0.6

Mathematics
2 answers:
sveta [45]3 years ago
8 0
|r| ≤ 1
selection C cannot be a value of r.
aliya0001 [1]3 years ago
5 0

Answer:

option C -1.6

Step-by-step explanation:

we know that

The <u>correlation coefficient</u>  r is used in statistics to measure how strong a relationship is between two variables. The value of r is always between +1 and -1

so

The value of -1.6 is not a possible r-value

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The problem
Afina-wow [57]

Answer:

Step-by-step explanation:

In the given division, when 24.725 is divided by 215,

Step 1 is the wrong step.

Quotient in first step will be 0.1 .

Part C.

215) 24.725 (0.115

      <u> 215</u>

          322

          <u>215</u>

           1075    

           <u>1075</u>

                0

Therefore, the correct way to divide should be as agove.

Quotient after division should be 0.115.

6 0
3 years ago
48x^2 +44x=60 which of the following could be used to find the solution to the equation above? Select all that apply
levacccp [35]

Because the polynomial has degree 2, we can assume that there are 2 solutions (roots), whether real or imaginary.

You can subtract 60 in order to put this in standard form

48x^2+44x-60 = 0

From there, just put a,b, and c into the quadratic formula and you're good to solve for your answers.


(-b+-sqrt(b^2-4ac))/2a

(-44+-sqrt(44^2-4(48)(-60)))/2(48)

Then solve.


There is probably a better way, but this should give you the two roots/solutions.

8 0
3 years ago
A recent tornado damaged Jack's house and left it a little distorted. A question on the insurance form asked, "What shape is the
Svetlanka [38]

Answer:

45

Step-by-step explanation:

2x+2x+2x+3x+3x=540(sum of angels in a five sided polygon)

12x=540

x=45

8 0
3 years ago
Geometry help! Will give brainliest!! The slope of line b is -1/6. What is the slope of the line parallel to line b?
atroni [7]

Answer:

-1/6

Step-by-step explanation:

Parallel lines are lines which have the exact same slope but different y-intercepts. This means any line which is parallel and does not cross will have the exact same slope of -1/6.

3 0
3 years ago
Lamar used 7/8 of a cup of raisins to make snacks mix. he used 3/4 of a cup of raisins to make cookies what expression could be
Alinara [238K]
The answer is B.

In order to add the two values together, you must find the least common multiple for the denominators. The denominators are 8 and 4, and the least common multiple of 8 and 4 is 8. Because you have to multiply 4 by 2 to get 8, you must also multiply 3 by 2 to get 6. This will give you 6/8.
6 0
2 years ago
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