Why is the product of two rational numbers always rational? select from the drop-down menus to correctly complete the proof. let ab and cd represent two rational numbers. this means a, b, c, and d are , and b and d are not 0. the product of the numbers is acbd , where bd is not 0. both ac and bd are , and bd is not 0. because acbd is the ratio of two , the product is a rational number.

is there any picture if not then i believe the answer is Integers, d is not zero, multiplication.

i don't know how to explain it though let me try to figure this out more if i find anything more out ill type it in the text!!

7.25

step-by-step explanation:

we know that 7 equals to 7.0. we also know that 1/4=0.25. so we can add the two together and we get 7.25

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