Answer:
a₁ = 250
Step-by-step explanation:
Use the given values in the formula for the sum of a geometric series, and solve for the unknown.
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S₆ = a₁×(1 -r⁶)/(1 -r) . . . . sum of 6 terms of a geometric series
922.32 = a₁×(1 -(4/5)⁶)/(1 -4/5) = a₁×5×(1 -4096/15625) = a₁×11529/3125
922.32×3125/11529 = a₁ = 250 . . . . divide by the coefficient of a₁
Answer:
Isn't the sum when you add numbers together? if this is true, there is no way you can get the sum of 28
Step-by-step explanation:
Answer:
Option D. {–7, 7}
Step-by-step explanation:
3n^2 = 147
First, divide both side 3
n^2 = 147/3
n^2 = 49
Next, rearrange the variables to one side of the equation as shown below:
n^2 — 49 = 0
n^2 — 7^2 = 0
The above is now difference of two squares. This can be solve by doing the following:
(n — 7)(n + 7) = 0
n — 7 = 0 or n + 7 = 0
n = 7 or n = —7
Answer:
The length of PS is 23.1 cm
Step-by-step explanation:
18.4 + 4.7 =
