Answer:
the answer would be 16%, but if its rounded to nearest whole percent it would be 20
Step-by-step explanation:
Let
point
A----------------- > Bob
point
B----------------- > lamppost that is to Bob left
point
C----------------- > lamppost that is to Bob right
we know that
dAB=25 ft
dAC=30 ft
dBC=20 ft
see the attached
figure
we use the law of
cosines------------- > dBC²=dAB² +dAC² -2(dAB)(dAC)cos(alfa)
we have that
20²=25² +30² -2(25)(30)cos(alfa)--------
> cos (alfa)=(20²-(25² +30²))/(-2*25*30)
cos (alfa)=(400-(625 +900))/(-1500)= (400-(625 +900))/(-1500)=1125/1500=0.75
<span>alfa=arccos (0.75)= 41.4096 -------- > 41 °--------
> </span>∡ BAC
the answer
is 41 °
Hey there!
60 * 100 = 6,000
Just add all the zeros together, and keep that 6 at the front. And there you have your answer.
Hope this helps! :)
4 is the x value and -3/4 is the y value. (x,y)
To plot this point, move over to the right to 4, then go down 3/4. So the point will be in the bottom right quadrant.