Answer:
error
Step-by-step explanation:
mean = sum/n
mean = (5 + 7 + 7 + 9 + 12 + 16 + 21)/7
mean = 77/7
mean = 11
If we draw a perpendicular line from one of the vertices of the triangle we get 2 right angled triangles each with altitude 9 ins and vertex angle = 30 degrees. So:-
cos 30 = 9 /h where h = one of the sides of the equilateral triangle
h = 9 / cos 30 = 10.392 inches
Therefore the perimeter of the triangle = 3 * 10.392 = 31.1769 ins
Answer is 31.18 inches to the nearest hundredth.
Answer:
Remember if cosecθ=1/sinθ
sinθ×cosecθ=sinθ×1/sinθ=1
CMIIW
<u>Answer:</u>
Lin: 25 × 8,2 =<em> 205 meters</em>
Elena: 250 ÷ 28 = <em>8,9 meters per second</em>
Diego: 32 × (-8,1) = <em>-250,2 meters</em>
Andre: -258 ÷ 25 = <em>-10,32 meters per second </em>
