Answer:
-32 or 4x -8
Step-by-step explanation:
-2 ( -3x + 2 ) : 6x - 4
= 6x -4 - 2 ( x + 2 )
- 2 ( x + 2 ) : - 2x -4
=6x - 4 - 2x - 4
= 6x -2x - 4 - 4
= 6x - 2x - 8
= 4x - 8
= -32
( Im not really sure what is the answer )
( the "x" is alphabet, not "times" )
Answer:
Answer is given below with explanations.
Step-by-step explanation:
The correct answer is option d
BC is included between the angle B and C
Hence the answer is option d
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Answer:
![cos(33^{\circ})](https://tex.z-dn.net/?f=cos%2833%5E%7B%5Ccirc%7D%29)
Step-by-step explanation:
Given
![sin(57^{\circ})](https://tex.z-dn.net/?f=sin%2857%5E%7B%5Ccirc%7D%29)
Required
Determine an equivalent expression
In trigonometry:
![sin(\theta)= cos(90^{\circ} - \theta)](https://tex.z-dn.net/?f=sin%28%5Ctheta%29%3D%20cos%2890%5E%7B%5Ccirc%7D%20-%20%5Ctheta%29)
In ![sin(57^{\circ})](https://tex.z-dn.net/?f=sin%2857%5E%7B%5Ccirc%7D%29)
![\theta=57^{\circ}](https://tex.z-dn.net/?f=%5Ctheta%3D57%5E%7B%5Ccirc%7D)
Substitute
for
in ![sin(\theta)= cos(90^{\circ} - \theta)](https://tex.z-dn.net/?f=sin%28%5Ctheta%29%3D%20cos%2890%5E%7B%5Ccirc%7D%20-%20%5Ctheta%29)
![sin(57^{\circ})= cos(90^{\circ} - 57^{\circ})](https://tex.z-dn.net/?f=sin%2857%5E%7B%5Ccirc%7D%29%3D%20cos%2890%5E%7B%5Ccirc%7D%20-%2057%5E%7B%5Ccirc%7D%29)
![sin(57^{\circ})= cos(33^{\circ})](https://tex.z-dn.net/?f=sin%2857%5E%7B%5Ccirc%7D%29%3D%20cos%2833%5E%7B%5Ccirc%7D%29)
Hence, the equivalent expression is: ![cos(33^{\circ})](https://tex.z-dn.net/?f=cos%2833%5E%7B%5Ccirc%7D%29)
Answer:
2x⁴ - 20x² - 78
To factor the expression look for the LCM of the numbers
LCM of the numbers is 2
Factorize that one out
That's
2( x⁴ - 10x² - 39)
Hope this helps
Answer:
c= 18.4
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
cos theta = adj/ hyp
cos theta = a/c
cos 57 = 10/c
Multiply each side by c
c cos 57 =10
Divide each side by cos 57
c = 10/cos 57
c=18.36078459
Rounding to the nearest tenth
c= 18.4