Find an explicit formula for the geometric sequence −1,−7,−49,−343,...-1\,,-7\,,-49\,,-343,... −1,−7,−49,−343
umka21 [38]
So we see it times 7 each time
starting with -1
geometric
an=a1(r)^(n-1)
a1=first term
r=common ratio
first term is -1
r=7
is the formula
also can look like this:
12 is the evaluation of the problem
Answer:
65,520
Step-by-step explanation:
hope this is helpful
Answer:
Step-by-step explanation:
we have the sequence
we know that
In an <u><em>Arithmetic Sequence</em></u> the difference between one term and the next is a constant and this term is called a common difference
Let
we know that
----> 
----> 
The common difference is 2
This is an arithmetic sequence
The general formula for an arithmetic sequence is
where
d is the common difference
n is the number of terms
substitute the given values
Exponential functions look somewhat similar to functions you have seen before, in that they involve exponents, but there is a big difference, in that the variable is now the power, rather than the base. Previously, you have dealt with such functions as<span>f(x) = x2</span><span>, where the variable </span>x<span> was the base and the number </span>2<span> was the power. In the case of exponentials, however, you will be dealing with functions such as </span><span>g(x) = 2</span>x, where the base is the fixed number, and the power is the variable.
Let's look more closely at the function <span>g(x) = 2</span>x<span>. To evaluate this function, we operate as usual, picking values of </span>x<span>, plugging them in, and simplifying for the answers. But to evaluate </span>2x<span>, we need to remember how exponents work. In particular, we need to remember that </span>negative exponents<span> mean "put the base on the other side of the fraction line. </span>
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<span>hope this help plz mark brainliest</span>
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