Answer:
50 ft
Step-by-step explanation:
The concept to apply here is that of laws of sine of an angle where;
Sine of an angle theta = opposite length / hypotenuse
Sin 30° = height of building / length of the web
Sin 30° = h / 100
h = 100 sin 30° = 100 * 0.5 = 50 ft
<span>25% is the correct answer, however instead of asking all us people here at yahoo what the answer is, next time you have a fraction you need to turn into a percent, simply divide the top number by the bottom number and multiply it by 100
1 divided by 4 is .25
.25 x 100 = 25%
and instead of multiplying by 100 each time, it's easier just to move that little decimal point to the right two spots! do 400+25%=425
</span>
Answer:
13.71 m
Step-by-step explanation:
Draw the tunnel so the width marks the zeroes at (-12,0) and (12,0)
then y = a ( x+12)(x-12) is the equation..
..to calculate 'a' sub in the point 9, 6 (where the width is 18)
6 = a ( (9+12)(9-12) shows a = -2/21
y = -2/21 (x+12)(x-12) Max is when x = 0
-2/21 ( 12)(-12) =<u> 288/21 = 13.71 m </u>
I think that it is 80,000,000 but if i’m wrong sorry