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3 years ago

I really don’t get it pls help me The choices are 3.1 10.4 13.8 13.0

Mathematics

1 answer:

Vikentia [17]3 years ago

8 0

x+2 (x+2) + 8

------- = ---------------

14 14+9

solve by using cross products

(x+2) * (14+9) = 14*(x+2+8)

(x+2)*23 = 14*(x+10)

distribute

23x+46 = 14x+140

subtract 14x from each side

9x+46 = 140

subtract 46 from each side

9x =94

x = 94/4

x = 10 4/9 cm

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Relative errors are presented hereafter:

$\%V = \frac{\Delta V}{V}\times 100\%$

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$\%A_{s} = 0.300\,\%$

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