Hello from MrBillDoesMath!
Answer: Choice B, 2(x+7)(x+7)
Discussion:
For 2 out of each term in the polynomial:
2x^2+28x+98 =
2( x^2 + 14x + 49).
Note the 14 = 7 + 7 and 49 = 7*7 sp the polynomial factors as
2 (x+7)^2
which is choice B.
Thank you,
MrB
We add all these mixed numbers together:
1 1/2 + 2 3/4 + 2 1/3
It will be easier to convert the mixed numbers into improper fractions:
3/2 + 11/4 + 7/3
Now we have to find the common denominator which is 12:
18/12 + 33/12 + 28/12 = 79/12 = 6 7/12
The answer is 6 7/12 hours.
Answer:
Step-by-step explanation:
The next is to simplify
The bird is flying at 5m/s, so
1 sec = 5 m
It flies for 3 mins
3 mins = 3 x 6sec
3 mins = 180 sec
The bird flies for 180 seconds
1 sec = 5 m
180sec = 5 x 180 = 900m
The bird flew 900m in 3 mins (Answer C)
