Answer: -0.4n-13
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Step-by-step explanation:
Answer:
True.
Step-by-step explanation:
The rule for reflecting the X value is to negate the Y value but leave the X as it is.
Example: K= (7,2) when reflected it would be (7,-2).
Answer: I say the third option
Step-by-step explanation:
Answer:
1/4
Step-by-step explanation:
3 out of 12 stored over 10:
3 / 12
simplify
1/4
Answer:
see below
Step-by-step explanation:
The formula for the sum of an infinite geometric series with first term a1 and common ratio r (where |r| < 1) is ...
sum = a1/(1 -r)
Applying this to the given series, we get ...
a. sum = 5/(1 -3/4) = 5/(1/4) = 20
b. sum = d/(1 -1/t) = d/((t-1)/t) = dt/(t-1)
_____
The derivation of the above formula is in most texts on sequences and series. In general, you write an expression for the difference of the sum (S) and the product r·S. You find all terms of the series cancel except the first and last, and the last goes to zero in the limit, because r^∞ → 0 for |r| < 1. Hence you get ...
S -rS = a1
S = a1/(1 -r)