Answer:
A)
Step-by-step explanation:Quadratics
For 2/5 meter, it takes = 1 min.
For 1 meter, it is = 5/2 min.
Now, for 6 meters, it would be: 5/2 * 6 = 30/2 = 15
In short, Your Answer would be 15 minutes
Hope this helps!
Answer:
b/(b+a)
Step-by-step explanation:
(1/a)-(1/b) :[ (b²-a²)/ab²]
first solve :
common denominator ab
(1/a)-(1/b) = (b-a)/ab
[b-a/ab] : [(b²-a²)/ab²]
when divide fraction ( division sign turn to (×) and flip the second fraction(reciprocal):
[b-a/ab] × [ab²/ (b²-a²)]
then simplify : ab²/ab = b
(b-a)×(b/b²-a²)
factorize : b²-a² = (b-a)(b+a)
(b-a)×(b/(b-a)(b+a)) simplify : (b-a)/b-a = 1
[(b-a)(b)]/[(b-a)(b+a)
b/b+a
Answer = 12
3 minus 8 = -6
12 minus 8 = 4 SO...
20 minus 8 = 12
Answer:
(12^11)(19×7)
Step-by-step explanation:
12^13–12^12+12^11
(12^11)(12² - 12 + 1)
(12^11)(144 - 12 +1)
(12^11)(133)
(12^11)(19×7)
Therefore,
12^13–12^12+12^11 is a multiple of 19 and 7.
12^13–12^12+12^11 is divisible by 19 and 7.
