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Mamont248 [21]
2 years ago
11

1 13/15 divided by 1 2/5

Mathematics
2 answers:
marishachu [46]2 years ago
6 0

Answer:

ez points

Step-by-step explanation:


ryzh [129]2 years ago
3 0
The answer is 1 1/3
the decimal form is 1.3 repeated
the exact form is 4/3
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An economist conducted a study of the possible association between weekly income and weekly grocery expenditures. The particular
kolezko [41]

Answer:

42.1% of variation in the response is explained by the regression line

Step-by-step explanation:

Correlation coefficient is a measure which tells us that how strongly are two variables under study are linearly related to each other i.e correlation coefficient gives the strength of linear association between the variables.

If the magnitude of correlation coefficient is closer to 1, it indicates a strong linear relationship. If the magnitude of correlation coefficient is closer to 0, it indicates a weak linear relationship.

There is another variable known as "Coefficient of Determination", which is equal to square of Correlation Coefficient. Coefficient of Determination tells us that what percentage of variation in the response of the study can be explained by the regression line.

This means, for this question we need to calculate the Coefficient of Determination.

Correlation coefficient = r = 0.649

Coefficient of Determination = R = r² = (0.649)²= 0.421 = 42.1 %

This means that 42.1% of variation in the response is explained by the regression line.

5 0
3 years ago
Find the area of the circle with a circumference of
Anton [14]

Answer:

706.50 mm^2

Step-by-step explanation:

The formula to find the circumference is 2πr (r : radius)

if the circumference is 30π the the radius is = 15

to find the area we use the following formula :

π*r^2

r = 15 and π is given as 3.14

(3.14)*15^2 = 706.50 mm^2

8 0
2 years ago
Can somebody help me with this problem
soldier1979 [14.2K]
115 degrees because there are 180 degrees in a triangle so let the missing angle in the trinagle be x. Then we have x+75+40=180. Solving for x and subtracting that from 180 (supplementary angles) we get 115 degrees.
4 0
3 years ago
Which are monomials?<br><br> -7<br><br> a<br><br> x + y<br><br><br><br> 24r2st3<br><br><br> bx
amid [387]

Answer:

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
The original price of a Shirt was $45. In sales, the shirt is reduced to $32.50. Calculate the percentage reduction.
Klio2033 [76]

Answer:

27.8%

Step-by-step explanation:

\frac{32.5}{45} =0.722

0.722 = 72.2%

The % reduction is:

(100-72.2)% = 27.8%

Hope this helps

8 0
2 years ago
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