Hi!
Got a question!
A bullet travels at a speed of 320 m/s. Write this speed in km/hr?
A.121Km/hr
B.1152Km/hr
C.52Km/hr
Thanks!
And please explain!

1152 km/hr

Step-by-step explanation:

60 seconds in a minute, 60 minutes in an hour, so 3600 seconds in an hour.

If it travels 320 meters in one second, multiply by 3600 for the total meters per hour: 1152000. Convert meters to kilometers. Divide by 1000.

Result: 1152 km/hr

A) and D)

Step-by-step explanation:

The alternative form is  obtained by the long division  of x^2 + 12x - 9 by x + 4.

In the alternative form  we can  pick out the remainder - it is -41.

And the quotient is x + 8.

We see more clearly if we write it as x + 8 - 41/ (x + 4). The final step in the long division  is the remainder -41 divided by x+4.