3 years ago

Find the sum of the first 6 terms in the sequence -5 -25 -125 -625

1 answer:

5 0

This is a geometric sequence, so use the formula for the sum of a geometric sequence:
Sum = (a(r^n - 1))/(r - 1)
where a is the first term, -5
r is the common ratio, 5
and n is the number of terms

Thus,
Sum = ((-5)(5^6 - 1))/(5-1) = -19530

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Answer:

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Step-by-step explanation:

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3 years ago

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Read 2 more answers

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pshichka [43]

Answer:

Two other algebraic expressions based on this situation are:

$J = m-2$

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Step-by-step explanation:

Let m represent Meg's age.

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Let J represents Jill's age

Jill's age $J = m-2$

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$J = m-2$

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3 years ago

Nathan hit 19 homeruns. He scored 3 fewer homeruns than twice the number of homeruns hit by jason. Write and solve an equation t

Vinvika [58]

Jason hit 11 homeruns.

Step-by-step explanation:

Homeruns hit by Nathan = 19

Let,

Homeruns hit by Nathan = x

Homerun hit by Jason = y

According to given statement;

x = 2y - 3 Eqn 1

We know that Nathan hit 19 homeruns, therefore, putting x=19 in Eqn 1

$19=2y-3\\19+3=2y\\22=2y\\2y=22$

Dividing both sides by 2;

$\frac{2y}{2}=\frac{22}{2}\\y=11$

Jason hit 11 homeruns.

Keywords: linear equations, addition

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago

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Vinvika [58]

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3 years ago