Element X is a radioactive isotope such that every 3 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 410 grams, how much of the
element would remain after 10 years, to the nearest whole number?

45

step-by-step explanation:

b) well because you get well

the equivalent expression are always the hardest ones but you look at the gcf also

step-by-step explanation:

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where,

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, ,   ,   ,

and   ,

thus, slop of the given line is,

⇒  

⇒   ≈ 33