Answer:
x is about 37.6 degrees
Step-by-step explanation:
hope that helped
Answer:
1r + 8(400) = 3(r+400)
1r + 320 = 3r + 120
2r = 200
r = 200 / 2 = 1000
1400 * 3 = 420
100 + 320 = 420
Step-by-step explanation:

Taking 4 out from first two terms, we will get

Now we divide the coefficient of x by 2 and add and subtract the square of the result, we will get

Distributing 4

Cancelling 9

And that's the required standard form.
Answer:
D.
Step-by-step explanation:
First, multiply straight across and put everything together:

Notice we can simplify by cancelling a b and reducing 3/12:

This cannot be simplified further.
D.
Answer:
point
Step-by-step explanation: