Choose the correct classification of 5x + 3x4 − 7x3 + 10 by number of terms and by degree.
2 answers:
Answer:
Fourth degree polynomial
Step-by-step explanation:
Given is an algebraic expression with 4 terms as
First let us arrange these terms in the descending powers of x.
We get
is the standard way of representing any polynomial.
This is a polynomial because x has powers only as non negative integers.
The degree is 4 since the leading term or highest degree term has degree 4.
This is a polynomial as this got more than 3 terms after simplification.
Hence Option B is the answer.
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Answer:
The improve in speed is 3.9334 words/min
Step-by-step explanation:
we will find speed at both occasions and then we can subtract them
First test:
total number of word =694
total time =15 min
we know that
speed = (total number of words)/( total time)
now, we can plug values
speed is
word/min
word/min
Second test:
total number of word =753
total time =15 min
we know that
speed = (total number of words)/( total time)
now, we can plug values
speed is
word/min
word/min
So, improve in speed is
word/min