A boat is traveling east across a river that is 112 meters wide at 8 meters per second. If the river has a northward current of a 5 meters per second, what is the resultant speed of the motorboat rounded to the nearest tenth?
A)8.6 m/s
B)3.0 m/s
C)13.0 m/s
D)9.4m/s

D) 9.4 m/s

Step-by-step explanation:

The boat has an eastward speed of 8 m/s and a northward speed of 5 m/s.  The resultant speed can be found with Pythagorean theorem:

v² = (8 m/s)² + (5 m/s)²

v = 9.4 m/s

sorry not sure

step-by-step explanation:

3x + 18 = 147°

step-by-step explanation:

3x + 18 = 147°, because the value of the central angle is equal to the value of the arc formed by it.

i hope i you.