2x + 4
Step-by-step explanation:
14/7(x+2)
14 / 7 = 2
SO;
2(x + 2)
Expand the brackets;
2x + 4
Answer:
If you want this in an equation, it would be
If you want the answer to this, it would be
Step-by-step explanation:
Hope this helps:)
Answer:
Step-by-step explanation:
Lets remember the following expression:
cos(x-a)= cos(x)*cos(a)+sin(x)*sin(a)
if a= -3 pi /2 then:
cos(x-3 pi/2)= cos(x)*cos(3pi/2) + sin(x)*sin(3pi/2)
Since cos (3pi/2) is located exactly at 'y' axis, its value=0
Moreover sin(3pi/2)= -1 because, that angle is located at 'y' axis, negative side
cos(x-3pi/2)= -sin(x)
But, we can simplify a little more since we now that tan(x)=3/4
That means that sin(x)/cos(x)= 3/4, from that expression we isolate sin(x) and we obtain that sin(x)=cos(x) * 3/4
Using the above conclusion we have that
cos(x-3pi/2)= -cos(x)*3/4
Answer:
The third angle of the triangle is 90º
Step-by-step explanation:
A triangle has three interior angles.
The sum of the three interior angles of a triangle is 180º.
In this problem, we have that:
2 angles of 45º
A third angle x
The sum of these angles is 180. So
2*45 + x = 180
90 + x = 180
x = 90º
So
The third angle of the triangle is 90º