Find the albsolute and percent relative uncertainty and express each answer with a reasonable number of sig. fig, by using error propagation method. a) [4.99 (+0.06) 1.865 ( + 0.002)1/22.3 ( + 0.2) = b) 2.1684 (+0.007)*103+ 1.223 (+0.006) 102+ 4.62 ( + 0.01) c) [3.14159 (+0.2)]1/3 - d) ln[6.022 (+ 0.005)]+log10[ 127.22 (+ 0.05)]

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step-by-step explanation:

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5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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