__11. 3 and -3 are _.

Mathematics

1 answer:

bagirrra123 [75]2 years ago

3 0

Answer:

11=B. or A

12=C

13=B

im sure in number 13

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3 years ago

What is the area of triangle ABC?

Elina [12.6K]

Answer:

$\circ\ \ 36\sqrt{3}$

Step-by-step explanation:

$CD=12\times \sin(60) =12\times \frac{\sqrt{3} }{2}$

Important Note:………………………………………………………………………………………

ABC is an equilateral triangle because it has 2 angles of measure 60

===========================================================

According to the note AB = 12

Final answer :

$\text{Area of triangle ABC} =\frac{AB\times CD}{2}$

$=\frac{12\times 6\sqrt{3} }{2}$

$=\frac{72\sqrt{3} }{2}$

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2 years ago

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ArbitrLikvidat [17]

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A system of equations is the given term math for two or more equations with the same variables. The solution of these equations represents the point of the intersection.

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