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igor_vitrenko [27]
3 years ago
15

The isosceles triangle shown has a height of 7 meters and base

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
5 0

Answer:

91

Step-by-step explanation:

I just Multiplied 13 x 7 to get 91... I hope it helps but if its wrong I am very sorry

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Answer:

Dog is 2 years old

Step-by-step explanation:

Let dog's age = d

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Your dog is 8 years younger than your friend:

d +8 = f

In 2 years, your friend will be three times as old as your dog:

3(d+2) = (f+2)

3d+6 = f+2

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(sub in f=d+8 from above)

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How many 4 digit numbers consisting of only the digits 2,4,6 and 8 are divisible by 4
Blababa [14]

Answer:

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  • repeated digits: 128

Step-by-step explanation:

In order for a number to be divisible by 4, its last two digits must be divisible by 4. This will be the case if either of these conditions holds:

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We must count the ways these conditions can be met with the given digits.

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Since we only have even numbers to work with, the ones digit must be an even multiple of 2: 4 or 8. (The tens digit cannot be odd.) The digits 4 and 8 comprise half of the available digits, so half of all possible numbers made from these digits will be divisible by 4.

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If the numbers must use each digit exactly once, there will be 4! = 24 of them. 24/2 = 12 of these 4-digit numbers will be divisible by 4.

<h3>repeated digits</h3>

Each of the four digits can have any of four values, so there will be 4^4 = 256 possible 4-digit numbers. Of these, 256/2 = 128 will be divisible by 4.

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Step-by-step explanation:

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