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3 years ago

Point A is at (3,-8) and point B is at (7,3). What is the midpoint of line segment AB?

Mathematics

2 answers:

UNO [17]3 years ago

8 0

The midpoint is located at the average of the two x-values and the average of the two y-values, whether or not that point has whole number coordinates.

3+7
—— = 5
2

-8 + 3
——— = -2.5 (or -5/2)
2

So the midpoint is (5, -2.5). Notice this doesn’t have an integer coordinate for the y-value.

kkurt [141]3 years ago

4 0

Answer:

(5, -2)

Step-by-step explanation:

because that is the only other place on the line where it is on a actual point

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I’m stuck please help

weqwewe [10]

Since there are 2 negatives in front of the 8, it becomes positive 8

-4q + 8q + 10

4q + 10

4q = -10

q = -10/4 or reduce it to -5/2

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3 years ago

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Which of these is an example of a random sample?

statuscvo [17]

Answer:

The random sample is D. The other 3 cannot be taken as random since they involve groups at a specific place or doing a specific thing.

Step-by-step explanation:

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3 years ago

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A girl scout troop sold cookies. If the girls sold 5 more boxes the second week than they did the first, and if they doubled the

mihalych1998 [28]

We can let x be the number of boxes sold for the first week. We can as well express the number of boxes for the second and third week through x using the statements provided.

Since the girl scout sold 5 more boxes on the second week, we have (x + 5) number of boxes sold for the second week. Now, for the third week, since it's double that of the second week, we have 2(x + 5). Thus, we have the following:

first week: x
second week: x + 5
third week: 2(x + 5)

Given that the total number of boxes sold for the three weeks is 431. We have

x + (x + 5) + 2(x + 5) = 431
x + x + 5 + 2x + 10 = 431
4x + 15 = 431
4x = 431 - 15
4x = 416
x = 104

We have now the value of x. Using this, we can find the values for the second and third week.
x + 5 = `104 + 5 = 109
2(x + 5) = 2(109) = 218

Answer:
first week: 104
second week: 109
third week: 218

5 0

3 years ago

The two interior opposite Angel's of a triangle are 60° and 80°. Find the measure of the exterior angle.

Vadim26 [7]

let the exterior angle be x

x=60°+80°(being one exterior angle is equal to two interior angle)

x°=140°

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3 years ago

Tri-County Utilities, Inc., supplies natural gas to customers in a three-county area. The company purchases natural gas from two

Sav [38]

Answer:

The network model is attached.

Step-by-step explanation:

Total Demand from each Gas Company are:

Southern Gas, 500 units;

Northwest Gas, 400 units.

Total Supplies to each County are:

Hamilton County, 400 units;

Butler County, 200 units;

Clermont County, 300 units.

The distribution costs per unit (in thousands of dollars) are as follows

-----------Hamilton-- Butler-- Clermont

Southern Gas--- 10 ---20--- 15

Northwest Gas ----12 ----15---- 18

The network representation of these information is given in the attachment.

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4 years ago