Step-by-step explanation:
Given expression
8(5s)
The expression equivalent to the given expression is
B. 5(s 8)
D . 40s
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Answer:
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Step-by-step explanation:
ANSWER:
The value of x is 2 and of y is 4

STEP-BY-STEP EXPLANATION:
We have the following equation system

solving for substitution:
First, we need to solve for the common ratio from the data given by using the equation.
a(n) = a(1) r^(n-1)
15 = -3 r^(2-1)
-5 = r
r = -5
Then, we can find the sum by the expression:
S(n) = a(1) ( 1 - r^n) / 1-r
S(8) = -3 (1 + 5^8) / 1+5
S(8) = -195313
Step-by-step explanation:
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