Is y = 7x +2 and x + 7y = 8 perpendicular, parallel, or neither ?
2 answers:
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Let's analyze the increments for each step of the sequence:
Each step we add 3 to the previous number.
Since we need the 20th, from what we saw, in the 20th term we will have added three 20 times.
So the procedure is: calculate how much is 3 times 20 and then add that to the first term of the sequence.
So we add 60 to the first term to find the 20th term:
Answer: 124
Answer:
Step-by-step explanation:
Work via factoring by groups:
!) re arrange the terms as follows:
then extract the common factor for the first two terms (a), and separately the common factors for the last two terms (3 b):
Now notice that the binomial factor (a-5 b) is in both expressions, so extract it:
which is the final factorization.