Answer:
a = sqrt(b^2 + c^2 - 2bc cosA) = sqrt(13^2 + 6^2 - 2 * 13 * 6 * cos 50) = sqrt(169 + 36 - 156 cos 50) ≈ sqrt(205 - 100.3) ≈ sqrt(104.7) ≈ 10.2
a ≈ 10.2
c / sin C = a / sin A
sin C = c sin A / a = 6 sin 50 / 10.2 ≈ 0.4491
C = arcsin(0.4491) ≈ 26.7
C ≈ 26.7°
B = 180 - A - C ≈ 180 - 50 - 26.7 ≈ 103.3
B ≈ 103.3°
Step-by-step explanation:
Answer:2.61 $
Step-by-step explanation:
convert percent to decimal 4.5%=0.045
58*0.045
which equals
2.61 $
You are looking for a speed in miles per hour, so start by converting 90 minutes into hours.
90/60 = 1.5
90 minutes = 1.5 hours
speed = distance/time = (105 miles)/(1.5 hours) = 70 mph
7 - 2 5/7
= 7 - 19/7
= 49/7 - 19/7
= 30 / 7
= 4 2/7
Answer:
7.7
Step-by-step explanation:
trust me, I solved it out
