Answer:
Step-by-step explanation:
The numbers don’t increase by a constant amount, so this is not an arithmetic sequence.
It appears to be a <em>geometric sequence</em>.
The <em>general formula</em> for each term in a geometric sequence is
aₙ = a₁rⁿ⁻¹
===============
Calculate the value of r
You can calculate the r-value by dividing any two consecutive terms in the sequence.
rₙ = aₙ/aₙ₋₁
a₂/a₁ = 4.5/3 = 1.5
a₃/a₂ = 6.75/4.5 = 1.5
a₄/a₃ = 10.125/6.75 = 1.5
a₅/a₄ = 15.1875/10.125 = 1.5
r = 1.5
===============
Determine the formula for the nth term
a₁ = 3; r = 1.5 Substitute the values
aₙ = 3(1.5)ⁿ⁻¹ Write the equation as a function of x
Answer:
travel 2 hour stop 1 hour then again for 2 hours
Step-by-step explanation:
Answer:
81
Step-by-step explanation:
x² + 18x
x² + 2(x)(9) + 9²
x² + 2(x)(9) + 81
(x + 9)²
Answer:
the kit can produce 99*89*105*74 = 68,461,470 faces
Step-by-step explanation:
Hope this helps : )