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sandygarcia65
12.07.2019 •
Mathematics
How many even 3-digit positive integers can be written using the digits 1,2,4,7, and 8?
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Ответ:
Looking at the question, we can see we have 5 different numbers that can go in any order.
5 * 4 * 3
The above is basically saying there are 5 different numbers that can be multiplied by 4 other numbers. Those 2 can be multiplied by 3 different ones, leaving us with a 3 digit positive integer.
5 * 4* 3 = 60
Ответ:
y= 6
Step-by-step explanation:
substitute x= -2 in the equation y=18+3x^2
from there you'll get your final answer