What's the answer to x 3/4 * x 4/3
1 answer:
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A. Judy made a mistake between Steps 1 and 2
To factor
, you have to factor it as 
, not 
, because that will leave an extra 6x because of 8x - 2x.
To factor
Answer:
see explanation
Step-by-step explanation:
The sum to n terms of an arithmetic sequence is
=
[ 2a₁ + (n - 1)d ]
where a₁ is the initial value and d the common difference
Given
=
[ 10 + (n - 1)3 ]
Then by comparison
2a₁ = 10 ( divide both sides by 2 )
a₁ = 4 ← initial value
and d = 3 ← common difference
Thus
=
[ 10 + (7 × 3) ]
= 4(10 + 21)
= 4 × 31
= 124