Two suppliers manufacture a plastic gear used in a laser printer the impact strength of these gears measured in foot-pounds is an important characteristics . Random sample of 100 gears from supplier 1 result in average 290and standered deviation 12, while another random sample of 81 gears from the second supplier results in average 321 and standered deviation 22 is there evidence to support the clain that supplier 2 provides gears with higher mean impact strength ? use alpha 0.05

add an !

step-by-step explanation:

answer: b)

step-by-step explanation:

its a dot plot because since the score is not high numbers.

- r3ktforgood ☕

step-by-step explanation:

i believe its "c" because all of the other options include a but it could be d because there is a way of financing with cash at certain places but its uncommon.

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.