Answer:
286.48°
Step-by-step explanation:
Given in the question that we have to convert 5 rad to degree.
we know that,
π = 180°
1rad = 180°/π
5rad = 180°(5)/π
= 286.4788°
≈ 286.48° (nearest to hundredth)
So 5 rad is 286.48°
Answer is $5. if the drink was $4 and the total was $39 then subtract 39-4 u get 35. then do 35/7 because there are 7 bars, and we wanna figure out of much THOSE where, thus is why we subtracted 4.
You problem is you don't have any problem. You have a bunch of formulas for the perimeter and area of some shapes.
As for using the formulas, usually you're given all but one of the variables and you can solve for the remaining one.
Notice how the triangle result doesn't have area as a function of a, b and c. That's called Heron's formula and is usually not taught to secondary school students. I don't like to teach it either because Archimedes' Theorem is so much better:
The sides a,b,c and area S of a triangle satisfy
Eric took 20 hours to do the job alone.
<u>Step-by-step explanation</u>:
<u>Given </u>:
- Total work = 75 packages
- Joe took 5 hours to complete the total work.
The amount of work Joe alone can do per hour = 75/5 = 15 packages.
The amount of work Joe and Eric together do per hour = 75/4 = 18.75
The amount of work Eric alone can do per hour = 18.75 - 15 = 3.75
The time Eric took to complete the entire work = 75 / 3.75 = 20 hours.
