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Anna007 [38]
3 years ago
6

8. Two alarms ring simultaneously

Mathematics
2 answers:
PSYCHO15rus [73]3 years ago
7 0
They will meet for a third time at 6am because 20 is one third of 60. So when the first alarm rings three times the second one will also ring. Then since the question is asking when the alarms ring for the third time together you ha e to add three hours to 3am because they always meet on the hour. Hope this helps!
Anestetic [448]3 years ago
4 0
3:20 then 3:40 then 4:00 for both
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Chris used 45 meters of fencing to enclose a circular garden. What is the approximate radius of the garden,rounded to the neares
kobusy [5.1K]
The length of the fencing corresponds to the length of the perimeter of the garden:
p=45 m
We also know that the perimeter of a circle is given by:
p=2 \pi r
where r is the radius of the circle.

Putting together the two equations, we have
2 \pi r = 45
from which we can find r, the radius of the garden:
r= \frac{45}{2 \pi}= \frac{45}{2 \cdot 3.14}=7.17 m
3 0
2 years ago
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A satellite is in orbit 600\ \mathrm{k}\mathrm{m}600 km above Earth's surface. Earth's radius is about 6370\ \mathrm{k}\mathrm{m
yKpoI14uk [10]

The distance from the satellite to the Earth's horizon is 6398 km

<h3>Pythagoras theorem</h3>

Pythagoras theorem is used to show the relationship between the sides of a right angled triangle. It is given by:

Hypotenuse side² = Adjacent side² + Opposite side²

Let x represent the distance from the satellite to the Earth's horizon

Hence:

  • x² = 6370² + 600²
  • x² = 40936900
  • x = 6398 km

The distance from the satellite to the Earth's horizon is 6398 km

Find out more on Pythagoras theorem at: brainly.com/question/343682

6 0
2 years ago
Which expressions is equivalent -8.2-5
GuDViN [60]

Answer:

-13.2

Step-by-step explanation:

-8.2-5 essentially means that you just have to add 8.2 and 5. (disregard the signs for a moment) if you add them you get 13.2 as both of these number have a negative sign just add it and here's your answer

8 0
2 years ago
Thank you, have a great day.
wel

Answer: ?

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The floor of a room is 12m long and 7.5m broad i) Find the area of the floor ii) Find the cost of carpeting the floor at rs 80 p
weqwewe [10]

A=90m^2

Cost=RS.7200

I hope that helps

4 0
2 years ago
Read 2 more answers
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