It would be: 80/20 = 4
so, she requires 4 boxes.
Answer:
approx. 24.6 ft
Step-by-step explanation:
x=the distance of the fire from the base of the tower
200ft=the height of the tower
7 degrees=the angle of depression
Using these values you can draw a diagram that highlights that you need to use trig. to work out the answer.
Using Tan:
Tan 7=x/200 ft
multiply both sides by 200 ft
200*tan 7=24.55691218
approx. 24.6 ft
This is the concept of trigonometric identities;
To solve the expression we proceed as follows, first we simplify the question, we subtract 3 m from 135m and 96m. Our new height for London eye is 132m and Big Ben is 93 m.
speed is given by:
1 rev/min= 2pi rad/min
thus our speed will be:
1/30 rev/min
=pi/15 rad/min
Subtracting 93 m (Big Ben)- 66 m (radius of the London Eye)= 27 m
This will make right angle as:
adjacent=27 m
hypotenuse=66 m
cos x=27/66=9/22
x=arccos(9/22)
Therefore the time taken will be given by:
2 cos^-1 (9/22)* (15/pi min/rad)
N/B the 2 accounts for both up and down
thus time taken will be:
30*cos^-1(9/22)
=30cos^-1 (9/22) min
Answer:
x = -16
Step-by-step explantion:
Solve for x by simplifying both sides of the equation, then isolating the variable.
Hope this helps!
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