1 - As células da bactéria Escherichia coli têm formato cilíndrico, com 8 x 10−7 metros de diâmetro. O diâmetro de um fio de cabelo é de aproximadamente 1 x 10−4 metros. Dividindo-se o diâmetro de um fio de cabelo pelo diâmetro de uma célula de Escherichia coli, obtém-se, como resultado a) 200. B) 135 . C) 140. D) 125.

125

Step-by-step explanation:

The cells of the bacterium Escherichia coli have a cylindrical shape, with 8 x 10−7 meters in diameter. The diameter of a hair is approximately 1 x 10−4 meters. Dividing the diameter of a hair by the diameter of a cell of Escherichia coli gives, as a result, a) 200. B) 135. C) 140. D) 125

We are carrying out division operation

The diameter of a hair ÷ The diameter of a cell of Escherichia

The cells of the bacterium Escherichia coli have a cylindrical shape = 8 x 10^−7 meters in diameter.

The diameter of a hair is approximately 1 x 10^−4 meters

Therefore:

1 x 10^−4 meters ÷ 8 x 10^−7 meters

= 125

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.

all the angles opposite to the angle 150 would be 150 and all the angles that are next to 150 are 30 because they equal 180 it you add it up.

step-by-step explanation: