Answer:
y-axis
Step-by-step explanation:
Theta = 10
2cos(30) = sqrt(3)
Theta = -10
2cos(-30) = sqrt(3)
Theta = 180 - 10 = 170
2cos(3×170) = -sqrt(3)
So A and B is the answer choices?
Answer:
(3,2)
Step-by-step explanation:
2x+3y=12
substitute x with 3 because x=3
2(3)+3y=12
multiply
6+3y=12
(subtract 6 from both sides)
3y=6
(divide by 3 on both sides)
1y=2
x = 3 and y = 2
The perimeter is 320. Just multiply 80 times 4
Answer:
Ratios are 2:3:5 given. So, 2*X+3*X+5*x=180° — sum of three angles of a triangle. So, X=18°. Hence angles are 36° , 54° and 90°
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