Answer:
the answer is B :)
Step-by-step explanation:
edgen 2020
Answer:
((4x3)/2)2 + (5x10) + (10x4) + (10x3) = 132 cm^2
Step-by-step explanation:
find area of triangles then of the other rectangular faces and add them.
99
because 0.49 is less than 0.5(0), we round it down.
This will be easier to write, and a lot easier to read, if we temporarily
use another symbol ... say, 'Q' ... to represent ' sin(2x) ' .
Here we go:
Original equation: Q² - 0.5 Q = 0
Factor the left side: Q (Q - 0.5) = 0
This equation is true if either factor is zero:
-- If Q=0, then sin(2x) = 0
2x = 0°, 180°, 360°
x = 0°, 90°, 180°
-- If (Q-0.5) = 0, then Q = 0.5
sin(2x) = 0.5
2x = 30°, 150°
x = 15°, 75°
The whole collection of solutions
between 0° and 360° :
x = 0°, 15°, 75°, 90°, 180° .
