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WITCHER [35]
3 years ago
7

Find the percent error in this situation Estimated: 145 Actual value: 189

Mathematics
1 answer:
levacccp [35]3 years ago
3 0

Answer:

-23.2

                                        _____      _____

hello thre um                   ((_O_))     ((_O_))

                                             ///     v    ///

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How is the sum expressed in sigma notation?<br><br> 11 + 17 + 23 + 29 + 35 + 41
Ann [662]
<h3>The sum expressed in sigma notation is:</h3>

11+17+23+29+35+41=\sum\limits_{i=1}^{6}5+6i

<u><em>Solution:</em></u>

Given that,

11 + 17 + 23 + 29 + 35 + 41

We have to express the sum in sigma notation

Analyse the series

5 + 6(1) = 11

5 + 6(2) = 17

5 + 6(3) = 5 + 18 = 23

5 + 6(4) = 5 + 24 = 29

5 + 6(5) = 5 + 30 = 35

5 + 6(6) = 5 + 36 = 41

<em><u>Thus the series goes on like this:</u></em>

5 + 6(n) , where n = 1 to 6

<em><u>This can be expressed in sigma notation as:</u></em>

11+17+23+29+35+41=\sum\limits_{n=1}^{6}5+6n

<em><u>We can expand the sigma notation and verify the results</u></em>

\sum\limits_{i=1}^{6}5+6i=(5+6(1))+(5+6(2))+(5+6(3))+(5+6(4))+(5+6(5))+(5+6(6))\\\\\\\sum\limits_{i=1}^{6}5+6i=(5+6)+(5+12)+(5+18)+(5+24)+(5+30)+(5+36)\\\\\\\sum\limits_{i=1}^{6}5+6i=11+17+23+29+35+41

8 0
3 years ago
Read 2 more answers
What is the nature of the roots of 6x² - 22=0?​
PolarNik [594]

Answer:

x=√ 33 /3 , − √ 33 /3

Step-by-step explanation:

4 0
4 years ago
Need help asap will give brainly
shutvik [7]

Answer:

3 is 75

4 is 124

5 is 61

Step-by-step explanation:

for number 4 angles 6 and 8 are supplementary so they add up to equal 180

if they said that 6=56 then we we subtract 56 from 180

180-56=124 so angle 8 equals 124

for number 5 angles 3 and 5 are also supplementary so the values combined will ad up to equal 180. If they say that angle 5 is equal to 119 then all we have to do to get the value of angle 3 is subtract 119 from 180

180-119-61 so angle 3 equals 61

hope this helps :D

3 0
4 years ago
Read 2 more answers
What's the relationship between risk and return?
vichka [17]

Answer:

A. a higher risk often means higher return.

Step-by-step explanation:

Risk and return, risk is the chance you have of not gaining anything out of an investment or loosing money, this high risk investments often have higher rewards or returns in order to be more appealing to investors and in that way people will invest in those enterprises or products.

7 0
3 years ago
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Suppose the students who scored 85 and 90 on the math test take the test again score 95
hodyreva [135]
That means they went up by 10 points or 5 points
7 0
4 years ago
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