Answer:
sum= 1 19/30 mean= 49/90
Step-by-step explanation:
We suppose that m and n are odd (m and n are integers);
Then m x n will became odd;
False, because m x n is even;
Finally, <span>m is even or n is even.</span>
Answer:
x = - 8, x = 8
Step-by-step explanation:
Given
x² - 64 = 0 ( add 64 to both sides )
x² = 64 ( take the square root of both sides )
x = ± = ± 8
Answer:
20 floors
Step-by-step explanation:
15 sec to go up 5 floors is climbing one floor every 3 seconds
3 sec x 20 = 60 seconds
1 fl x 20 = 20 floors