Answer:
2.4 hours
Step-by-step explanation:
Let total work = X
Rate of work done = X ÷ time
Rate of A = X/4
Rate of B = X/6
If they work together, rate is the sum of their individual rates, i.e.
X/4 + X/6
= (3X + 2X)/12 (taking LCM)
=5X/12
Rate = X/time
5X/12 = X/time
time = X÷(5X/12)
time = X × 12/(5X)
time = 2.4 hours
Shortcut:
Product of individual times/sum of individual times
= (4×6)/(4+6)
=24/10
=2.4 hours
Answer:
yes it is right
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
No
Because a linear function is the form as

the highest exponent is one
and the graph is a line in the case of

is a parabola, not a line
Answer: B
Step-by-step explanation:
Using 6 decimals for pi = 3.141592


We just need to do come computation:


So, we have 34>28