4. Write the radical expression in rational exponent form.5√a

Mathematics

1 answer:

ale4655 [162]3 years ago

3 0

There's ambiguity here. Either the original expression is "5 times the square root of a" or 5 is the "index of the root."

Then "5 times square root of a" would be 5a^(1/2), or
1/2
5a

. On the other hand, if you meant 5 to be the "index of the root," then the correct result would be

1/5
a

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Find the indicated sum of each sequence S8 of -2,-13,-24,-35

valentina_108 [34]

Answer:

The sum of the arithmetic sequence is $S_{8}=-324$ .

Step-by-step explanation:

A sequence is a set of numbers that are in order.

In an arithmetic sequence the difference between one term and the next is a constant. In other words, we just add the same value each time infinitely.

If the first term of an arithmetic sequence is $a_1$ and the common difference is d, then the nth term of the sequence is given by:

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For the sequence

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The pattern is continued by adding -11 to the last number each time.

An arithmetic series is the sum of an arithmetic sequence. We find the sum by adding the first, $a_1$ and last term, $a_n$ , divide by 2 in order to get the mean of the two values and then multiply by the number of values, n