T is more than -4. Remember that -4 is not included.
Answer:
Efficiency is the ratio of output work to input work.
Answer:
550a + 590b = 1275
Step-by-step explanation:
We use the following relation to solve this question:

In which v is the velocity, d is the distance and t is the speed.
In this question, we find the distance, so we use:

A plane is flying to Metro City. The plane started its journey 1275 miles from Metro City.
This means that
.
Write an equation in standard form to represent the situation if the plane travels a hours at 550 mph and b hours at 590 mph.
This means that
.
Which equation is correctly written in standard form to represent this scenario?

1275 = 550a + 590b
550a + 590b = 1275
The answer is B. 0.000000849
To write 4.1363636 as a fraction you have to write 4.1363636 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.
4.1363636 = 4.1363636/1 = 41.363636/10 = 413.63636/100 = 4136.3636/1000 = 41363.636/10000 = 413636.36/100000 = 4136363.6/1000000 = 41363636/10000000
And finally we have:
4.1363636 as a fraction equals 41363636/10000000