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NeTakaya
3 years ago
9

Help me please asappppppppppppppppppppppppppp

Mathematics
1 answer:
Alex_Xolod [135]3 years ago
3 0

Answer:

4

Step-by-step explanation:

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Sum and difference tan(135+30)
Mumz [18]
\tan(x+y)=\dfrac{\sin(x+y)}{\cos(x+y)}=\dfrac{\sin x\cos y+\sin y\cos x}{\cos x\cos y-\sin x\sin y}=\dfrac{\tan x+\tan y}{1-\tan x\tan y}

So,

\tan(135^\circ+30^\circ)=\dfrac{\tan135^\circ+\tan30^\circ}{1-\tan135^\circ\tan30^\circ}

You should know that \tan135^\circ=-1 and \tan30^\circ=\dfrac1{\sqrt3}

Putting everything together,

\tan(135^\circ+30^\circ)=\dfrac{-1+\dfrac1{\sqrt3}}{1-(-1)\left(\dfrac1{\sqrt3}\right)}=\dfrac{1-\sqrt3}{\sqrt3+1}=\sqrt3-2
7 0
4 years ago
-5^2 find the power
Art [367]

Answer:

Hey there!

When we have a^b, b is the power.

Thus, in -5^2, 2 is the power.

Let me know if this helps, or if you need more help :)

5 0
4 years ago
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Please help me!! I suck at geometry. I don’t understand any of it at all
zysi [14]

Answer:

use socartic for help

Step-by-step explanation:

3 0
3 years ago
How long did it take a biker to travel 20 miles at 12mph
Anika [276]

Time = Distance / speed

Time = 20 miles / 12mph

Time = 1 and 2/3 hours ( 1 hour and 40 minutes)

5 0
3 years ago
The functions f(x) and g(x) are graphed.
klasskru [66]

Answer:

f(x) = g(x) at (2. 0) and f(x) = g(x) at (0. 4)

Step-by-step explanation:

Two functions are said to be equal in value when they intersect at a point where their coordinates are equal. If f(x) represents the straight blue line and g(x) represent the curved red line with an upward curve, they intersect when their coordinates are equal. So, f(x) = g(x) when they intersect.

Now, f(x) crosses the x-axis at (2, 0) and crosses the y-axis at (0, 4).

Also, g(x) crosses the x-axis at (2, 0) and crosses the y-axis at (0, 4).

Since their coordinates are equal at these two points, it means that

f(x) = g(x) at (2. 0) and f(x) = g(x) at (0. 4)

4 0
4 years ago
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