All categories

3 years ago

Exercice 5 (2 points)

Mathematics

1 answer:

yulyashka [42]3 years ago

3 0

Answer:

Hours = 2.5

Minutes = 0.04167

I hope it helps. (j'espère que ça aide)

You might be interested in

Did we invent math or did we discover it?

Aleks [24]

Mathematics is not discovered, it is invented

7 0

3 years ago

Read 2 more answers

Compute the correlation coefficient for the data set. (2,19), (3,22), (4,26), (5,20), (6,35), (7,30), (9,40), (10,42), (11,35)

lakkis [162]

Answer:

The correlation coefficient of the data is 0.8679.

Step-by-step explanation:

The formula to compute the correlation coefficient is:

$r(X,Y)=\frac{n\cdot \sum XY-\sum X\cdot \sum Y}{\sqrt{n\cdot\sum X^{2}-(\sum X)^{2}}\times \sqrt{n\cdot\sum Y^{2}-(\sum Y)^{2}}}$

From the data provided compute the values of ∑ XY, ∑ X, ∑ Y, ∑ X² and ∑ Y².

The values are computed in the table below.

Compute the correlation coefficient as follows:

$r(X,Y)=\frac{n\cdot \sum XY-\sum X\cdot \sum Y}{\sqrt{n\cdot\sum X^{2}-(\sum X)^{2}}\times \sqrt{n\cdot\sum Y^{2}-(\sum Y)^{2}}}$

$=\frac{(9\times 1893)-(57\times 269)}{\sqrt{(9\times 441)-(57)^{2}}\times \sqrt{(9\times 8635)-(269)^{2}}}\\\\=\frac{1704}{\sqrt{720\times 5354}}\\\\=0.86788895\\\\\approx 0.8679$

Thus, the correlation coefficient of the data is 0.8679.

4 0

3 years ago

In the figure, polygon ABCD is transformed to create polygon A’B’C’D’. This transformation is a

BartSMP [9]

reflection transformation i believe. Correct me if im wrong im not that smart lol.

6 0

4 years ago

Simplify 15/60 lowest answer

MakcuM [25]

1/4 or .25 or 25%
You basically just divide 60 by 15. So 15 goes into 60 4 times. Therefore, 4 is our denominator with one as our numerator.

4 0

4 years ago

Read 2 more answers

An inscribed angle that opens to a diameter has an intersected arc that is a ________________. The angle is a ______ angle becau

kherson [118]

Answer:

An inscribed angle that opens to a diameter has an intersected arc that is 180 degrees. The inscribed angle is a right angle (90 degrees) because

$\frac{1}{2}(180^o)=90^o$

Step-by-step explanation:

we know that

The inscribed angle is half that of the arc comprising

Remember that

The diameter divide the circle into two equal parts

An inscribed angle that opens to a diameter has an intersected arc that is 180 degrees

The inscribed angle is 90 degrees because

$\frac{1}{2}(180^o)=90^o$

therefore

An inscribed angle that opens to a diameter has an intersected arc that is 180 degrees. The inscribed angle is a right angle (90 degrees) because

$\frac{1}{2}(180^o)=90^o$

3 0

3 years ago