5/18 because 2 (1/2) is equal to 1 then dividing the number means to turn it around so 18/5 will be 5:18
Answer:
ab² - 9
Step-by-step explanation:
Given in the question an expression
(ab + 3)(ab - 3)
To product mentally we will use polynomial identity called
Difference of squares
<h3>a² - b² = (a+b)(a-b) </h3>
here a = ab
b = 3
(ab + 3)(ab - 3) = ab² - 3² = ab² - 9
0,8 = 8/10 = 4/5 = 16/20...
Answer:
Step-by-step explanation:
Given
Alex Jogged 3 rounds of 400 m track
It took 16 min to Jog 3 rounds
(a) Total distance Alex had Jogged
(b) Average speed is the total distance by the total time