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Mila [183]
2 years ago
7

using the midpoint formula find the coordinates of the midpoint 9f each sigment with end points (4,2),(-5,-1)​

Mathematics
1 answer:
exis [7]2 years ago
3 0

Answer:

The midpoint of the segment is (-0.5,0.5).

Step-by-step explanation:

Midpoint of a segment:

The midpoint of a segment is given by the mean of its coordinates.

Segment with end points (4,2),(-5,-1)​

x-coordinates: 4 and -5

y-coordinates: 2 and -1

x-coordinate of the midpoint:

x = \frac{4-5}{2} = -\frac{1}{2} = -0.5

y-coordinate of the midpoint:

y = \frac{2-1}{2} = \frac{1}{2} = 0.5

The midpoint of the segment is (-0.5,0.5).

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last year 1/5 of the students in your class played a sport this year 10 students join the class five of the new students play a
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Answer:

60

Step-by-step explanation:

last year 1/5 of the class played sports, so s = (1/5) c

the next year, s increased by 5, c increased by 10 and the fraction changed to 1/4, so for the next year (s+5) = (1/4)(c+10)

To solve this we can substitute s = (1/5)c from the first equation into the second, so

((1/5)c + 5)=(1/4)(c+10), simplify both sides

(1/5)c + 5 = (1/4)c + 10/4, simplify 10/4 to 5/2

(1/5)c + 5 = (1/4)c + 5/2, multiply both sides by 20 to eliminate fractions (least common multiple of 2, 4 and 5)

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50 = c, number of students in class last year was 50, this year is 10 more, so this year is 60

5 0
2 years ago
Solve:<br> (a+b+c) (a+b-c)
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Answer:

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Step-by-step explanation:

Solve:

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Hello!

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The quotient of 63 and 9 is 63/9

12 more means we add

The expression is 63/9 + 12 or 12 + 63/9

Hope this helps!
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