Hugo and koby are measuring the heights of plants in biology class.

use the drop-down menus to complete the statements about the measured heights and the actual heights of the plants.

math item stem image
clear check
because hugo's plant is than koby's plant, each centimeter of error results in a percent error.

hugo's measurement was centimeters off and koby's was centimeters off, so hugo's measurement was % off and koby's was % off.

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

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