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bulgar [2K]
3 years ago
10

Need help, what is the answer???

Mathematics
1 answer:
IRISSAK [1]3 years ago
3 0

Answer:

9

Step-by-step explanation:

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The medians of a triangle intersect at a point called the
lapo4ka [179]

Answer:

The medians of a triangle intersect at a point called the

centroid of the triangle

Step-by-step explanation:

The median of a triangle is a segment joining any vertex to the midpoint of the opposite side. The medians of a triangle are concurrent (they intersect in one common point). The point of concurrency of the medians is called the centroid of the triangle.

8 0
3 years ago
For online courses, like those in eCore, there is a positive correlation between the amount of time spent in the course and the
Troyanec [42]

Answer:

Regression Line is given by,

y = 22.909 + 0.209 x

The course grade of a student in the course who spent an average of 103 minutes in the course each week is: 22.909 + 0.209 × 103 = 44.436

Step-by-step explanation:

The equation of Regression equation is of the form of:

y = a + bx

where, a is intercept and b is slope

The formula for a and b is given by,

a=\frac{\sum Y \sum X^2-\sum X \sum XY}{n\sum X^2-(\sum X)^2}\\ and, b = \frac{n\sum XY -\sum X \sum Y}{n\sum X^2-(\sum X)^2}

Here, ∑X = 1149.8, ∑Y = 377.2, ∑XY = 93115.95, ∑X² = 320246.72

Thus, a = 22.909

and b = 0.209

Thus, Regression Line is given by,

y = 22.909 + 0.209 x

Thus, The course grade of a student in the course who spent an average of 103 minutes in the course each week is: 22.909 + 0.209 × 103 = 44.436

Now plotting these line:

6 0
3 years ago
When debby's 3ds is fully charged it last for 8 hours. if she only charged it 3/5 full how long did it last her?
Luba_88 [7]
8*3/5=4.8 hours

Hope that helps

7 0
3 years ago
Read 2 more answers
The net of a pyramid is shown below. The surface area of the solid is ____ square inches.
Effectus [21]
Area of a triangle= bh/2b=4in h=8in8x4/2=16in
there are 4 triangles
4x16=64
area of a rectangle=bh
4x4=16
64+16=80in^2
5 0
3 years ago
Read 2 more answers
A. x= 2 0
Elanso [62]

Answer:

Step-by-step explanation:

3 0
3 years ago
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