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masha68 [24]
3 years ago
14

Calculate the Average of...

Mathematics
2 answers:
Leno4ka [110]3 years ago
6 0
The average of a group of numbers can be found by dividing their sum by the size of the group. In this case, each problem involves two numbers, so the pair would be added and then halved.

a. 3 + 43 = 46
46 / 2 = 23
b. (-7.5) + 7.5 = 0
0 / 2 = 0
c. (-8) + 7 = (-1)
(-1) / 2 = (-1/2)
lesantik [10]3 years ago
3 0
You add them and then divide by how many numbers there are.

a. (3+43)/2 = 23
b. 0
c. -1
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Please help me thank you
Katen [24]

Answer: y=-0.5x+4.5

Step-by-step explanation: y=mx+b, m is the slope = -1/2 or -0.5, and b is the y-int, which is 4.5

3 0
2 years ago
Monica’s retirement party cost two dollars, plus an additional three dollars for every guess she invites. If there are 16 guests
lesya692 [45]

Answer:

TWO BUCKS?? ballin on a budget

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8 0
2 years ago
Which ordered pair (r, s) is the solution to the given system of equations?
SSSSS [86.1K]

Answer:

(8,3)

Step-by-step explanation:

Edge 2020 hope this helps =)

3 0
3 years ago
Read 2 more answers
Consider the parabola represented by the equation -2y^2=4x
stepan [7]
Part 1: The general form for this matches y^2 = -4cx, which implies that this opens to the left. (Imagine assigning any value of y, whether positive or negative, which would result in a positive left-hand value. Then to match this sign, the value of x must be negative so that the right-hand side becomes positive as well.)

Part 2: The distance from the vertex to the directrix is given by c. This equation has its vertex at the origin (0, 0). If it opens to the left, the directrix is a vertical line to the right of the origin. This equation is y^2 = -4(1/2)x, so c = 1/2, and the directrix has the equation x = 1/2.

Part 3: The focus is inside the parabola, but it is the same distance from the vertex as the directrix. This distance is 1/2 units, and it will be to the left of the vertex. So the focus is at (-1/2, 0).
5 0
3 years ago
What is the equation of the line that passes through the points (-1, 3) and (1, 11)
lina2011 [118]

Answer: To find the slope of this line, you would use the fomula

y2 - y1/ x2 - x1

11 - 3 / 1 - (-1)=

8/2

4

The slope of your line would be 4

3 0
3 years ago
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