When you make a drawing with the instructions, and call x the altitude of the plane and y the distance from the angle 72 ° to the point straight below the plane, you obtain these equations
tan(55°) = x / (2.2 + y)
tan (72°) = x / y
You solve y from the second equation
y = x / tan(72°)
Substitute y in the first equation
tan (55°) = x /(2.2 + x/tan(72°)
Solve for x:
x = tan(55)[2.2 + x/tan(72) ]
x = tan(55) (2.2) + x tan(55)/tan(72)
x - x tan (55)/tan(72) = 2.2 tan (55)
Now substitute the values of the tangents
tan (55) = 1.4281
tan(72) = 3.0777
x - 0.464x = 3.1419
x = 3.1419 / (1-0.464) =5.86 m
Ah ... it is a toy plane! I guess.
Step-by-step explanation:
7. 180 -92 -67 =21. 180-21 = 159
8.180-144 = 36 + 94 = 130 180-130 = 50
Answer: It takes the staff 3 hours to assemble all the booths.
Step-by-step explanation:
Ok first we write down the important info. It takes half hour for staff to assemble one sixth(1/6) of the booths. First you need to the the fraction 1/6 a whole number by multiplying it by the denominator which in this case is 6 which will give you the answer 1. Next you do the exact same thing for the other part. Multiply 1/2 by 6 to get 3. Put this altogether and your final answer is : It takes the staff 3 hours to assemble all of the booths.
Answer:
1\2 oats that's easy it's 1\2 that's the answer