The answer is definitely B
= 6cm
Area of Traingle = 1/2 x base x height
Which means that:
18 = 1/2 x 6 x height
x 2 on both sides
36 = 6 x height
divide 6 on both sides
height = 6 cm
⭐ Answered by Foxzy0⭐
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For convenience sake, I will be omitting the arguments of the trig functions.
- cos²/sin² + (cos)/(sin)
- = cos²/sin² + (cos sin)/sin²
- = (cos² + cos sin)/(sin²)
That equals 4,810. Make sure to have a placeholder when you multiply
Answer:
y = 2
x = 5
Step-by-step explanation:
4x + 5y = 10 | ×3 |
3x - 3y = 21 | ×4 |
12x + 15y = 30
12x - 12y = 84
____________--
27y = -54
y = -54/27
y = 2
4x + 5y = 10 | ×3 |
3x - 3y = 21 | ×5 |
12x + 15y = 30
15x - 15y = 105
____________+
27x = 135
x = 135/27
x = 5
