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4 years ago

Tan A tan (60° +A) tan (60° - A)= tan 3A

Mathematics

1 answer:

pav-90 [236]4 years ago

7 0

Step-by-step explanation:

i have clipped the answer dear see it and if u don't get it ask me again

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The demand for coffee is given by the following equation, where QD stands for the quantity demanded and P stands for price. QD=

Katen [24]

Answer:

100000000000000000000000000op

Step-by-step explanation:

10x25op

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3 years ago

What is y=1/2x +2 y= -x +5 using subsitution

horsena [70]

Y=1/2x+2
y=-x+5
subsitute since they both equal y
1/2x+2=y=-x+5
1/2x+2=-x+5
subtract 2 from both sides
1/2x=-x+3
multiply both sides by 2
x=-2x+6
add 2x to both sides
3x=6
divide both sides by 3
x=2
subsitue
y=-x=5
y=-2+5
y=3

x=2 and y=3
solution in (x,y) form is (2,3)

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3 years ago

The roof of a new sports arena rests on round concrete pillars. The maximum load a cylindrical column of a circular cross sectio

KATRIN_1 [288]

Answer: There are 3.5 metric tons will be supported by a column 8 m high and two thirds m in diameter.

Step-by-step explanation:

Since we have given that

Height of columns of arena = 9 m

Diameter = 1 m

Load = 14 metric tons

Since Load is directly varies as the fourth power of the diameter 'd', and inversely as the square of the height.

so, Mathematically, it is expressed as

$L=\dfrac{kd^4}{h^2}\\\\14=\dfrac{1.k}{9^2}\\\\14\times 81=k\\\\k=1134$

If the height of columns = 8 m

Diameter = $\dfrac{2}{3}\ m$

So, Load would be

$L=\dfrac{1134\times (\dfrac{2}{3})^4}{8^2}\\\\L=3.5\ tons$

Hence, there are 3.5 metric tons will be supported by a column 8 m high and two thirds m in diameter.

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3 years ago

I need help please can someone explain

slega [8]

hemisphere and cone

Step-by-step explanation:

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3 years ago

Which transformation changes triangle ABC to triangle A'B'C'?

kifflom [539]

Rotation 180 degrees counterclockwise direction about the origin.

hope that this helped you out a lil hon :)

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4 years ago

Tan A tan (60° +A) tan (60° - A)= tan 3A​

Tan A tan (60° +A) tan (60° - A)= tan 3A