3 years ago

I(1, 1) and J (-3,-3) Find the midpoint of the line segment

Mathematics

1 answer:

Pavlova-9 [17]3 years ago

4 0

The Answer is (-1,-1)

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Find the range of the data. scores: 84, 83, 80, 95, 99, 95, 83, 83, 92, 84

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To find the range of these scores, we must take the largest scores and subtract the smallest from it.

The largest score is 99, and the smallest score is 80.

99 - 80 = 19

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3 years ago

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If you reduce a twelve times a number by 40, you get the same number as if you increase its seven times by 25. What number is th

Digiron [165]

Step-by-step explanation:

Take the number as x

12x-40=7x+25

collect like terms

12x-7x=25+40

5x=65(divide both sides by 5)

x=13

Therefore number is 13

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3 years ago

Find the value of x and y. This has to do with geometry

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Answer:

x = 30°

y = 30°

Step-by-step explanation:

By inscribed angle theorem:

$x = y = \frac{1}{2} \times 60 \degree \\ \\ x = y = 30 \degree$

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3 years ago

A log is 20 m long, correct to the nearest metre.

Marat540 [252]

Answer:

222 fence posts

Step-by-step explanation:

Since the log is 20 m long, correct to the nearest metre and has to be cut into fence posts which must be 90 cm long, correct to the nearest 10 centimetres, there can be x fence posts 90 cm long.

So, we have x × 90 cm = 20 m

x × 0.9 m = 20 m

x = 20 m/0.9 m

x = 222.22

x ≅ 222 fence posts

So, the largest number of fence posts that can possibly be cut from the log is 222 fence posts.

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3 years ago

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$7d + d - 4d - 7 = 5d$