my question needs to be atleast 20 characters long but I think the picture explains it, I need help on q.8 :)

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04-03-2018
Biology

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my question needs to be atleast 20 characters long but I think the picture explains it, I need help on q.8 :)

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All of the following expressions have a value between 0 and 1, excepta. \frac{(-3^{7})}{(-3)^9}b. 4^{-10}× 4^{6}c. \frac{(8^3)^3}{8^{-4}} d. ( \frac{2}{5} ^{8})

What value of x makes the equation true ? 4(2x-4)=16

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What value of x makes the equation true ? 4(2x-4)=16

find the circumference of a circle whose radius is 15.4cm

All of the following expressions have a value between 0 and 1, excepta. \frac{(-3^{7})}{(-3)^9}b. 4^{-10}× 4^{6}c. \frac{(8^3)^3}{8^{-4}} d. ( \frac{2}{5} ^{8})

amirreza688 amirreza688 · Answer 1 · 2018-03-04T15:51:02+01:00

amirreza688 amirreza688

04-03-2018

use a ruler . put it on the paper .(i measured it on the screen and it was 4 cm )
it means that 4 cm in the picture is 0.1 mm in reality .
so ,magnification is 4/0.1=40 times

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