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Alexandra [31]
3 years ago
5

I need help Asap I can not go in the middle

Mathematics
1 answer:
cestrela7 [59]3 years ago
6 0
You my son the answer would’ve my cuh
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Write the explicit formula that represents the geometric sequence -2, 8, -32, 128
MissTica
So hmm the first term is -2

and if we divide one term by the term before it, we'd get the "common ratio" "r"

so hmm say -32/8 that gives us -4, so r = -4

thus \bf n^{th}\textit{ term of a geometric sequence}\\\\
a_n=a_1r^{n-1}\qquad 
\begin{cases}
a_1=\textit{first term}\\
r=\textit{common ratio}\\
----------\\
a_1=-2\\
r=-4
\end{cases}\implies a_n=-2(-4)^{n-1}
6 0
3 years ago
A car uses 12 gallons to travel 100 miles. How many gallons would it use to travel 450 miles?
rosijanka [135]

54 gallons

Step-by-step explanation:

  • 12 × 4.5 =54 gallons

4 0
2 years ago
4.56 rounded to the nearest whole number
Sveta_85 [38]

4.56 rounded to the nearest whole number is 5

4 0
3 years ago
Is the given pair a solution <br>y=-x -2; (2,-4)
nignag [31]
Yes
because
when x =2 then y = -(2) - 2 = -4

so (2,-4) is a solution

hope it helps
6 0
3 years ago
Carroll borrowed $500 at 14% interest for 6 months. How much interest did she pay?
pshichka [43]
I think the answer is c
8 0
3 years ago
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