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muminat
3 years ago
7

NEED HELP ASAP GOT 5 MINUTES PLEASEEE!!!! WILL GIVE ANYTHING

Mathematics
1 answer:
arsen [322]3 years ago
4 0

<u>Answer</u>

129


<u>Explanation</u>

−3+6−12+24−...

The series is a geometric progression.

The first term (a) = -3

Common ration (r) = 6/-3

                          = -2

The formula for getting the sum of a geometric progression is

Sum = a(rⁿ - 1)/(r - 1)

          = -3(-2⁷ - 1)/(-2 - 1)

          = -3(-128-1)/-3

            = (-3 × -129)/-3

              = -129

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Step-by-step explanation:

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First, simplify the 6\frac{3}{4} to an improper fraction, which is:

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Next rewrite the equation using the improper fraction:

\frac{8}{5}÷\frac{27}{4}

Now, in order to divide the fraction, we will need to flip the second fraction over, and then multiply the two fractions together. A great way to remember this is the phrase <em>Copy Dot Flip - </em>Copy the first fraction, put a dot for multiplication, and flip the second fraction.

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Finally, multiply together and simplify/reduce if needed:

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