Answer:
12
Step-by-step explanation:
There are 4 different digits to choose from. Since we want 2-digit number, we will see what digits can we put in place of 1st digit and what digit can we place in place of 2nd digit.
Hence, <u><em>how many digits (from 1,5,6 and 8) can be placed in the 1st digit of the number we want?</em></u>
Any one of the four digits (1,5,6, or 8).
Now, <em><u>How many digits (from 1,5,6 and 8) can be placed as the 2nd digit of the number we want?</u></em>
Any one of the THREE digits (since repetition is not allowed, we disregard the initial digit).
Thus the number of two-digit positive integers is 4 * 3 = 12
-25.65 - 16.5 + 12.45 = -29.7......he is now at 29.7 ft below the surface
You can put 400/100 to get the fraction 4/1 or 4, it is not a mixed number though. So the final answer is 4
Use a protractor. Place the whole on the dot of the angle and you should know how to do the rest.
Answer:5x-20y=12
Step-by-step explanation:
