Answer:
x = 20
Step-by-step explanation:
This isn't too difficult once you understand it.
The bottom left angle of the left triangle (on the other side of 110), that angle is congruent to the 70 degrees angle. that angle is 70 degrees. y = 90 degrees, 90 + 70 = 160
180 - 160 = 20
I’m just going to explain how I got my answer because it might help you understand for any future problems you have like this!!
So in this case, AEB is a mirrored dilation, or for easier terms, smaller twin, of CED, so if AEB was enlarged to the same size as CED, all the angle sizes would be the same, so we have to find the dilation factor of AEB. The dilation factor is basically just how many times smaller AEB is than CED. To do this, we’re going to take a similar angle measurement from both and divide them. So, angle ABE, and angle EDC would be the same angle, so we’re going to take those measurements, so 35 divided by 18 to get 1.94. That means 1.94 would be our dilation factor. In order to find angle a, we’re going to take it’s matching angle measurement on the opposite figure, which would be angle ECD and divide that by 1.94, so 43/1.94 which would give you around 22. The actual answer was like 22.164, but I would just round to 22!! Your final answer would be A= 22 degrees!! Apologies if this is wrong, I tried my best!!
Answer:
I hope you got it. I have presented it clearly and stepwise.
Answer:

Step-by-step explanation:
We are given the equation:

First, we can divide everything by 2:

Notice that we have an equation in quadratic form. Namely, if we make a substitution where u = sin(x), we acquire:

Solve for u. Factor:

Zero Product Property:

Solving for both cases:

And by substitution:

For the first case, recall that sin(x) is -1/2 for every 7π/6 and every 11π/6. Hence, for the first case, our solutions are:

Where n is an integer.
For the second case, sin(x) is -1 for every 3π/2. Thus:

All together, our solutions are:

Answer:
C
Step-by-step explanation:
The graph goes in order of that formula