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ElenaW [278]
3 years ago
12

What is the value of the expression [-7] + [-4]

Mathematics
2 answers:
ASHA 777 [7]3 years ago
8 0
So instead of subtracting that you added so it would be 11 because two negatives make a positive
atroni [7]3 years ago
3 0

Answer:

11

Step-by-step explanation:

I'm assuming that [.] fldenote absolute value even tho the absolute value function is represented by (|.|)

value of [-7] will be positive that us 7.

= 7 + 4

= 11

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6 0
3 years ago
What is the smallest 6 digit palindrome that is divisible by 99
Scorpion4ik [409]

Answer:

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Step-by-step explanation:

<u>6-digit palindrome is the number n the form of:</u>

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<u>This is divisible by 11 by default as the sum of the digits in odd placed is same as sum of the number in even places (remember the divisibility rule by 11):</u>

  • x + z + y = y + z + x

Now, in order to be divisible by 99, the number must be divisible by 11 and 9.

According to divisibility rule by 9 the sum of all digits must be divisible by 9. <u>You can see In our case we need to have (the minimum):</u>

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<u>The smallest number we could get is when x is minimum, y is minimum, so:</u>

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<u>The number we get is:</u>

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<u>Proof:</u>

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