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2 years ago

PLS HELP (40 POINTS!!)

Mathematics

2 answers:

attashe74 [19]2 years ago

7 0

Okay!

(◍•ᴗ•◍)

⇒first, add all the marks 6+7+8+9+10

⇒the answer will be 40 then there is

⇒5 numbers which were 6+7+8+9+10 the numbers that we were trying to add

⇒so divide 40÷5 is 8

⇒ the mean is 8

ФωФ

sineoko [7]2 years ago

5 0

Answer:

Number of students:

5 + 4 + 7 + 10 + 4 = 30

Total of marks:

5*6 + 4*7 + 7*8 + 10*9 + 4*10 = 244

Mean mark:

244/30 = 8.1333 ≈ 8

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Substituting x =0.2 and h= 0.2

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Substituting x =0.4 and h= 0.2

$y(0.4+0.2)\approx y(0.4)+0.2[(0.4)^2\times y(0.4)-\frac12 (y(0.4))^2]$

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$y(0.6+0.2)\approx y(0.6)+0.2[(0.6)^2\times y(0.6)-\frac12 (y(0.6))^2]$

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$y(0.8+0.2)\approx y(0.8)+0.2[(0.8)^2\times y(0.8)-\frac12 (y(0.8))^2]$

$\Rightarrow y(1.0)\approx 0.8800+0.2[(0.8)^2\times 0.8800- \frac12(0.8800)^2]$

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Therefore the value of y(1)= 0.9152.

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