Answer:
11.55
Step-by-step explanation:
An equilateral triangle is one which all it sides are equal.
10cm altitude means the height is 10cm.
Using Pythagoras theorem,
x² = 10² + (x/2)²
Assume that the side of the triangle is xcm
x² - x²/4 = 100
3x²/4 = 100
x = √(400/3)
x = 11.55cm
v = speed of fastest swimming = 8.6 kilometer/hour
V = fastest speed of a tennis ball = ?
It is given in the question that
fastest speed of a tennis ball = (13.07) speed of fastest swimming
V = (13.07) v
inserting the values
V = (13.07) (8.6 kilometer/hour)
V = (13.07 x (8.6) kilometer/hour)
V = 112.4 kilometer/hour
Step-by-step explanation:

Rewrite csc(x) in terms of sin

Multiply the numerator. Notice that the factors in the numerator are reciprocal so they will factor out to 1.

Notice that cotangent and tan are reciprocal so

Wheres the data? we cant answer without the data.