Meters: 3.9
centimeters: 390
i hoped i help :)
It is proportional because all the sides are equal.
The r-value, or common ratio, can be calculated by dividing any two consecutive terms in a geometric sequence.
Answer:
d. 
Step-by-step explanation:
The given trigonometric equation is;

Recall that;



The cosine function is negative in the second and third quadrant.


Answer:
Step-by-step explanation:
4x + 7 + 2x + 5 = 180
6x + 12 = 180
6x = 168
x = 28
4(28) + 7= 112 + 7= 119
2(28) + 5 = 56 + 5= 61