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3 years ago

What is the sum of (-2)+(-2)

Mathematics

2 answers:

Nadya [2.5K]3 years ago

5 0

Answer:

-4

Step-by-step explanation:

Brainliest please?

Nonamiya [84]3 years ago

5 0

Answer:

Step-by-step explanation:

(-2)+(-2)

'+' and '-' will be '-'

(-2) - 2 = 4

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The figure is the net for a rectangular prism.

oksano4ka [1.4K]

Answer:

$SA=544\ cm^2$

Step-by-step explanation:

we know that

The surface area of a rectangular prism is equal to the area of its six rectangular faces

using the net

The surface area is equal to

$SA=2[(16)(6)]+2[(16)(8)]+2[(8)(6)]$

$SA=192+256+96$

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3 years ago

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laiz [17]

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Step-by-step explanation:

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3 years ago

For the following telescoping series, find a formula for the nth term of the sequence of partial sums

gtnhenbr [62]

I'm guessing the sum is supposed to be

$\displaystyle\sum_{k=1}^\infty\frac{10}{(5k-1)(5k+4)}$

Split the summand into partial fractions:

$\dfrac1{(5k-1)(5k+4)}=\dfrac a{5k-1}+\dfrac b{5k+4}$

$1=a(5k+4)+b(5k-1)$

If $k=-\frac45$ , then

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If $k=\frac15$ , then

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This means

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Consider the $n$ th partial sum of the series:

$S_n=2\left(\dfrac14-\dfrac19\right)+2\left(\dfrac19-\dfrac1{14}\right)+2\left(\dfrac1{14}-\dfrac1{19}\right)+\cdots+2\left(\dfrac1{5n-1}-\dfrac1{5n+4}\right)$

The sum telescopes so that

$S_n=\dfrac2{14}-\dfrac2{5n+4}$

and as $n\to\infty$ , the second term vanishes and leaves us with

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3 years ago

Maclaurin series of sinx

olga nikolaevna [1]

Answer:

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Step-by-step explanation:

thats it

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3 years ago

Solve:<br> 3x - 9 = 5(x-3)

Viefleur [7K]

Hi,

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Have a good day.

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3 years ago