Answer:
(2n + 7) (2n +7)
Step-by-step explanation:
To solve this problem we need to factorize 4n^2 + 28n +49 as shown below
thus, after factorization we see that first option is correct one
(2n + 7) (2n +7)
we can validate this by expanding it
2n (2n +7) + 7 (2n+7)\
=> 4n^2 + 14n + 14n + 49 = 4n^2 + 28n +49 (which is equal to the problem stated expression)
Answer:
1920
Step-by-step explanation:
Nina can type 128 words is 4 minutes. At this rate, how many words can Nina type in an hour?
60 divided by 4 is 15
15x128= 1920
Answer:
43.434
Step-by-step explanation:
Answer:
△ABC is congruent to △DEF
Step-by-step explanation:
△DEF is a reflection of △ABC across the y-axis. (Each x-coordinate is negated.)
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<em>Comment on presentation</em>
This would be much easier to answer if you would use a conventional representation of ordered pairs:
... (-1, -2) instead of "begin ordered pair negative 1 comma negative 2 end ordered pair"
4469/27=169.222
Is the answer!
