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STatiana [176]
2 years ago
8

Need some help. :/

Mathematics
1 answer:
Allushta [10]2 years ago
4 0
I don’t have any graph paper but on 2x draw a line from the very right to the very left and shade the entire left side. And then on -3 draw a line from the very top to the very bottom and shade the top part. Unless you don’t shade it then don’t do that but that’s what you have to do
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Which of the following graphs of exponential functions corresponds to a geometric sequence with a first term of 4 and a ratio of
ser-zykov [4K]

Answer: graph E.


A geometric sequence can be written as:

a_{n} = a_{1} \cdot r^{(n - 1)}

where:

a₁ = first term = 4

r = ratio = 0.5


Substituting the numbers, we have:

a_{n} = 4 \cdot (\frac{1}{2})^{n-1}

or else

f(x) = 4 \cdot (\frac{1}{2})^{x - 1}


This is an exponential function with base less than 1. Therefore, we can exclude graph C (which depicts a linear function), and graphs A and D (which depict an exponential function with base greater than 1).


In order to choose between graph B and E, let's evaluate the function in two different points:

f(1) = 4 \cdot (\frac{1}{2})^{1 - 1} = 4

f(2) = 4 \cdot (\frac{1}{2})^{2 - 1} = 4 \cdot \frac{1}{2} = 2


Therefore, we need to look for the graph passing through the points (1, 4) and (2, 2). That is graph E.




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IrinaVladis [17]
The diameter is 46 and the radius is 11.5

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Suppose a pack of candy bars has 4 bars. Each bar weighs 3.38 ounces. How much does the pack weigh?
drek231 [11]

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13.52 ounces I think...

Step-by-step explanation:

4x3.38 subtract the decimal and add it again...

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