Areliability engineer has determined the reliability function for a critical solid-state power unit for use in a communications satellite is latex: \text{r(}t\text{)=10/(10+}t\text{)} ,\: t\ge0r( t )=10/(10+ t ) , t ≥ 0 and t measured in years. at least how many units must be placed in parallel in order to achieve a reliability of 0.98 for 5-years of operation?

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation:

you already gave the answer

step-by-step explanation: