3 years ago

Did I get these all right. If I missed one tell me

Mathematics

1 answer:

sattari [20]3 years ago

3 0

Yup, you got them all. (:

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Show that the series is convergent by the alternating series test, and find the number of terms necessary to estimate the sum of

Murljashka [212]

Answer:

6 terms

Step-by-step explanation:

2 − 2/4 + 2/9 − 2/16 + ...

∑ (-1)ⁿ⁺¹ 2 / n²

Applying alternating series test:

lim(n→∞) 2/n² = 0

2/(n+1)² < 2/n², so the series is decreasing.

Therefore, the series converges.

2/(n+1)² < 0.05

(n+1)²/2 > 20

(n+1)² > 40

n+1 > 6.32

n > 5.32

n = 6

7 0

3 years ago

HELP...Plz.....Thanks..... :)

Lynna [10]

I think a and y is 2 and 3 because in order to get 5 you have to add

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3 years ago

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Find the slope of the line through each pair of points. (15, 8), (-1, 15).

Natalija [7]

Answer:

22.6

Step-by-step explanation:

15-1 8-15

14^2 7^2

196+49

245

15.6

8 0

3 years ago

How do you solve the equation F = 9/5(K - 273.15) + 32 when you're solving for K?

Mumz [18]

$\displaystyle\\Answer:\ K=\frac{5}{9}(F-32^0)+273.15^0$

Step-by-step explanation:

$\displaystyle\\F=\frac{9}{5} (K-273.15)+32\\F-32=\frac{9}{5} (K-273.15)+32-32\\F-32=\frac{9}{5} (k-273.15)\\Multiply\ both\ parts\ of\ the\ equation\ by\ \frac{5}{9} \\(\frac{5}{9})(F-32)=\frac{9}{5} (K-273.15)(\frac{5}{9} )\\\\\frac{5}{9} (F-32)=K-273.15\\\\\frac{5}{9} (F-32)+273.15=K-273.15+273.15\\\\\frac{5}{9} (F-32)+273.15=K$

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2 years ago

Find BC Round to the nearest tenth. 7 140° B 13

OlgaM077 [116]

Answer:

The answer is

Step-by-step explanation:

This is from khan academy. so You need to watch a video on khan academy to get help.

6 0

3 years ago