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vredina [299]
3 years ago
11

An equilateral triangle has sides of length

Mathematics
1 answer:
belka [17]3 years ago
6 0

Answer:

x = 12

Step-by-step explanation:

3(2x - 3) = 63

6x - 9 = 63

6x = 72

x = 12

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Given the Arithmetic series A 1 + A 2 + A 3 + A 4 A1+A2+A3+A4 14 + 18 + 22 + 26 + . . . + 86 What is the value of sum?
postnew [5]

Answer:

950

Step-by-step explanation:

The common difference is 4, so the general term can be written:

... an = 14 + 4(n -1)

The value of n for the last term is ...

... 86 = 14 + 4(n -1) . . . . . the computation for the last term, 86

... 72 = 4(n -1) . . . . . . . . . subtract 14

... 18 = n -1 . . . . . . . . . . . divide by 4

... 19 = n . . . . . . . . . . . . . add 1

Your series has 19 terms. The first term is 14 and the last is 86, so the average term is (14+86)/2 = 50. Since there are 19 terms, the sum of them is ...

... 19×50 = 950

7 0
3 years ago
Identify a pattern in the given list of numbers.Then use this pattern to find the next number.
andriy [413]
4 x 5 = 20

20 x 5 = 100

I assume the next number in this sequence will be 500, as 100 x 5 = 500.
4 0
3 years ago
there is approximately 4.5 million births in a country each year. Find the birth rate of births per minute.
Flauer [41]
It’s simple you divide so 4,500,000 divided by 365 then divide that by 60
7 0
4 years ago
One analog clock loses 3 minutes every 2 hours and another analog clock gains 3 minutes every 4 hours. At noon, the owner sets t
Nadusha1986 [10]

Answer:

12 noon

Step-by-step explanation:

Clock 1 loses 3 minutes every 2 hours. Now, 2 hours = 120 minutes.

This means, it has speed of 120 - 3 = 117 minutes for every 2 hours.

Thus, in 1 hours, it's speed = 117/2 = 58.5 min/hr

Clock 2 gains 3 minutes every 4 hours

Which means in an hour, it gains ; 4/3 minutes

Thus, it's speed an hour is; 60 + 4/3 = 61.333 min/hr

Now, When he returns home in less than two weeks, the clocks show the same time.

let's say the number of hours he was away is x. For the 2 clocks to show the same time, it means they have to show it by 12 noon at another day since it was at noon that he set the correct times before leaving.

Thus, they will both be showing 12 noon.

6 0
3 years ago
Pleaseeeeeeeeeeeeeeeeee helpppppp
tia_tia [17]

Answer:

Hi!

The name of the equation is the Pythagorean Theorem.

A and B both are the lengths of the legs of a right triangle, while C is the length of the hypotenuse.

Hope I helped! Have a good day :)

3 0
3 years ago
Read 2 more answers
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