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MatroZZZ [7]
3 years ago
10

HELP PLZ

Mathematics
1 answer:
elena-s [515]3 years ago
3 0

Answer:

<h2><u>90</u></h2>

Step-by-step explanation:

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Which other expression has the same value as (-14) - (-8)? Explain your reasoning. *
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Answer:

The answer is -22 because when you subtract -8 from -14 it gives you -22.

Hope this helps!

5 0
2 years ago
How many integers are there that consist of four digits (from 1000 to 9999) where the first digit is a 5 or an 8 and the third d
Ostrovityanka [42]

Answer:

1600 integers

Step-by-step explanation:

Since we have a four digit number, there are four digit placements.

For the first digit, since there can either be a 5 or an 8, we have the arrangement as ²P₁ = 2 ways.

For the second digit, we have ten numbers to choose from, so we have ¹⁰P₁ = 10.

For the third digit, since it neither be a 5 or an 8, we have two less digit from the total of ten digits which is 10 - 2 = 8. So, the number of ways of arranging that is ⁸P₁ = 8.

For the last digit, we have ten numbers to choose from, so we have ¹⁰P₁ = 10.

So, the number of integers that can be formed are 2 × 10 × 8 × 10 = 20 × 80 = 1600 integers

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3 years ago
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Step-by-step explanation:

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