Answer:
2:38 PM
Step-by-step explanation:
1 hour and 56 minutes plus 1 hour and 9 minutes is 3 hours and 5 minutes just for playing games altogether. Now, eating took 56 minutes. That means the total time it took for playing basketball and swimming and eating dinner took 4 hours and 1 minute. Finally, if dinner ended at 6:39 PM, then you would want to subtract the total time from 6:39 PM in order to find the answer. 6:39 PM minutes 4:01 gives you 2:38.
Answer:
Step-by-step explanation:
y - 5 = -8(x - 1)
y - 5 = -8x + 8
y = -8x + 13
Answer:
Step-by-step explanation:
The scenario is represented in the attached photo. Triangle ABC is formed. AB represents her distance from her base camp. We would determine BC by applying the law of Cosines which is expressed as
a² = b² + c² - 2abCosA
Where a,b and c are the length of each side of the triangle and B is the angle corresponding to b. It becomes
AB² = AC² + BC² - 2(AC × BC)CosC
AB² = 42² + 28² - 2(42 × 28)Cos58
AB² = 1764 + 784 - 2(1176Cos58)
AB² = 2548 - 1246.37 = 1301.63
AB = √1301.63
AB = 36.08 km
To find the bearing, we would determine angle B by applying sine rule
AB/SinC = AC/SinB
36.08/Sin58 = 42/SinB
Cross multiplying, it becomes
36.08SinB = 42Sin58
SinB = 42Sin58/36.08 = 0.987
B = Sin^-1(0.987)
B = 81°
Therefore, her bearing from the base camp is
360 - 81 = 279°
When (2x-20)+86=0
2x-20=-86
2x=-46
x=-23