Answer:
(6x + 2) + 40 = 90
Step-by-step explanation:
1/3 would you like an explanation
Answer:
3.14
Step-by-step explanation:
The difference between her score and the mean is:
20 − 31 = -11
The number of standard deviations that equals is:
-11 / 3.5 ≈ -3.14
Her score is approximately 3.14 standard deviations below the mean.
Answer:
<h2>
aₙ = n² + 2n + 1</h2>
Step-by-step explanation:
a₁ = 4 = 2² = (1 + 1)²
a₂ = 9 = 3² = (2 + 1)²
a₃ = 16 = 4² = (3 + 1)²
a₄ = 25 = 5² = (4 + 1)²
a₅ = 36 = 6² = (5 + 1)²
Therefore:
<u>aₙ = (n + 1)² = n² + 2n + 1</u>