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2 years ago

What is ∑n=16[4(−5)n−1] equal to?

Mathematics

1 answer:

-Dominant- [34]2 years ago

4 0

Answer:

This will be the sum of a geometric series where the first term is 4

The common ratio is -5

And we will have 6 terms.....so....the sum is

first term [ 1 - common ratio^number of terms ] / [ 1 - common ratio ] =

4 [1 - (-5)^6] / [ 1 - -5 ] =

4 [ 1 - 15625 ] / 6 =

(2/3) ( -15624 ) =

-10416

Step-by-step explanation:

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Answer:

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4 years ago

11 1/4 divide by 2 what is the ansewer pls help fast

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So, the answer is

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3 years ago

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Stolb23 [73]

Answer:

p > 0

Step-by-step explanation:

x² = p

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3 years ago

What’s the expression of (9x2 - 2x + 7) + (4x2 + 7x + 2)

zloy xaker [14]

Answer:

35+5x

Step-by-step explanation:

Pick each bracket and solve them separately. After solving, then you add them

the first bracket= (9x2-2x+7) = 25-2x ------- eqn 1

the second bracket= (4x2+7x+2) = 10+7x ---- eqn 2

Add eqn 1 and 2

= (25-2x) + (10+7x)

Grouping like terms,

= (25+10) + (-2x+7x)

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3 years ago

Differentiate y = 1/√x

omeli [17]

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