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Naddika [18.5K]
2 years ago
7

PLEASE HELP IF YOU CAN! IM DESPERATE! DUE TODAY!

Mathematics
2 answers:
kodGreya [7K]2 years ago
8 0

Answer:

Step-by-step explanation:

sukhopar [10]2 years ago
6 0

Answer:

2x+6=-8(x>=-7), 2x+3<9(x<3), 2x-4<=-8(x<=-2), -x-8>=-5(x<=-3), x+-4<=-3(x<=1)

Step-by-step explanation:

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A man walks 5 feet, turns 20 degrees and then walks another 10 feet. How far is the man from where he started? Round your answer
Dvinal [7]

Answer:

About 14.8 ft

Step-by-step explanation:

This is a triangle. A man walks one direction, turns, and walks another direction. The question asks for you to find the distance, which is the hypotenuse side. This makes our triangle (see attachment 1)

Since this is not a right triangle, we will use law of cosines.

We are given 2 sides and an angle. However, 20 degrees is the exterior angle. To find the interior angle (green theta), we have to do a calculation:

180-20=160 degrees. This is green theta.

Now, we have all we need to use law of cosines. (see attachment 2)

5 0
3 years ago
The reference angle for 305
zaharov [31]

Answer:

55°

Step-by-step explanation:

The angle 305° is in the fourth quadrant

To find the related acute angle ( the reference angle ) subtract from 360°

reference angle = 360° - 305° = 55°

5 0
2 years ago
For z = 2cis 60°, find z4 in rectangular form.
a_sh-v [17]
By DeMoivre's theorem,

z=2\mathrm{cis}60^\circ\implies z^4=2^4\mathrm{cis}(4\times60)^\circ=16\mathrm{cis}\,240^\circ
z^4=16(\cos240^\circ+i\sin240^\circ)
z^4=16\left(-\dfrac12-i\dfrac{\sqrt3}2\right)
z^4=-8-i8\sqrt3
5 0
3 years ago
Read 2 more answers
For a regular 30 sided polygon , what is the degree of rotation
Mashcka [7]
The measure of any interior angle of a convex regular n-gon is :
180 º - ( 360 º / n )

For a 30-sided polygon,
interior angle = 180 º - ( 360 º / 30 )
..................... = 180 º - 12 º
..................... = 168 º
6 0
2 years ago
A pair of shoes that normally costs $75 is on sale for $55. What is the percent decrease in the price, to the
tia_tia [17]

Answer:

BI=27%

Step-by-step explanation:

x(the precentage of 55 from 75)

75x=55

x=55/75

x=0.73

55 is 0.73 of 75

0.73*100=73%

100%-73%=27%

6 0
2 years ago
Read 2 more answers
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