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natita [175]
3 years ago
15

ABC ∆ where Angle A =90° , AB = 12 m, AC = 9 m . Find BC ?

Mathematics
1 answer:
Setler [38]3 years ago
6 0

Answer:

15m

Step-by-step explanation:

Use Pythagoras

Folow the steps in the image

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A hiker is climbing down a valley. He stops for a water break 4 times. Between each break, he descends 15 meters. How many meter
Murljashka [212]

The word in the problem that indicates that a negative sign should be used is "descend"

<h3></h3><h3>How many meters did he descend?</h3>

We know that he stops for water breaks four times, and between each water break, he descends 15 meters.

The written equation is:

4*(-15)m = -60m

Why the negative sign is used?

The negative sign is used because the hiker is descending, so its height is decreasing. The word in the problem that indicates that a negative sign should be used is "descend"

If you want to learn more about signs:

brainly.com/question/5870782

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7 0
1 year ago
6 less than one eighth of y is x
faltersainse [42]

Answer:

1/8y-6=x

Step-by-step explanation:

6 0
2 years ago
Jing participates in a trivia contest. He completes each question in 1/2 minute.
jolli1 [7]

Answer:

300 seconds

Step-by-step explanation:

First, you have to know how much half a minute is. Half a minute is 30 seconds.

Second, you multiply 30 by 10 because he answered 10 questions.

30 * 10 = 300

So your answer is  300 seconds

Lastly, have a great day! :)

7 0
3 years ago
Can anybody help me with my work
nadya68 [22]

Answer:

$5.75

Step-by-step explanation:

14.25 divided by 5= 2.85

2.85+2.85=5.75

7 0
2 years ago
Read 2 more answers
Salem High School's winter sports teams WON 72% of their games last season. If the teams played 50 games, how many games did the
Dmitriy789 [7]

Answer

Find out the how many games did the teams lose .

To prove

Formula

Percentage = \frac{Part\ value\times 100}{Total\ values}

As given

Salem High School's winter sports teams WON 72% of their games last season.

If the teams played 50 games .

Percentage = 72%

Total value = 50

Put in the formula

72 = \frac{Number\ of\ games\ win\times 100}{50}

Number\ of\ games\ win = \frac{72\times 50}{100}

Number of games win = 36

Number of  games teams loses = Total number of games - number of games win

                                                          = 50 - 36

                                                          = 14

Therefore the number of games  team loses are 14 .



5 0
3 years ago
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