Answer:
D) 1.0 mph
Step-by-step explanation:
Own speed the boat = x
rate(speed) of the current = a
Speed of the boat downstream = (x + a)
Speed of the boat upstream =<em> (x - a)</em>
Speed of the boat downstream = 40 mi/4 h = 10 mi/h
Speed of the boat upstream = distance/time = 40 mi/ 5 h = <em>8 mi/h</em>
<em />
x + a = 10
<u>x - a = 8</u>
2x = 18
x = 9
x + a = 10
9 + a = 10
a = 1 mi/h
Answer:
∠ ABD = 60°
Step-by-step explanation:
∠ ABD = ∠ ABC + ∠ CBD , that is
∠ ABD = 25° + 35° = 60°
Answer:
A. Yes, it is a triangle and it is unique
Step-by-step explanation:
Those side measurements make a scalene triangle.Triangles with no two equal sides or congruent angles are called scalene triangles. In scalene triangles, each angle and side is completely unique.
Answer:
the answer to this question is 12
Step-by-step explanation:
72÷6=12
Answer: -72m
Step-by-step explanation:
Simplify