First we rewrite the expression correctly:
tn = ((-1) ^ n) * (n)
We now look for each of the terms:
t1 = ((-1) ^ 1) * (1) = - 1
t2 = ((-1) ^ 2) * (2) = 2
t3 = ((-1) ^ 3) * (3) = - 3
t4 = ((-1) ^ 4) * (4) = 4
The first four terms of the sequence are then:
-1, 2, -3, 4
Answer:
B.
-1, 2, -3, 4
0.35294117647 so it would be 0.35
Answer: 20 bags
Step-by-step explanation: The sandbox is being double so the 10 bags become doubled as well
The correct answer is: [C]: " 18 " {" 18 units " .} .
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Explanation:
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Add up the given areas, to get the total area of the given polygon:
3 + 5 + 8 + 2 =
(3 + 5) + 8 + 2 =
8 + 8 + 2 =
(8 + 8) + 2 =
16 + 2 =
" 18 " . The answer is: " 18 (units) " ; which is: Answer choice: [C]: " 18 " .
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