First let's find y. We know the sum of angles equals 180, so if we add the angles of ABC, we'd get 180.
30+y+80+y=180
110+2y=180
2y=70
y=35
You could solve x ,but the only response with y=35 is c. But to solve for x, you'd ad 35 35 and xwhich would equal 180.
35+35+x=180
70+x=180
x=110
Hi there! The answer is 30.
We need to use PEMDAS to simplify.
P = parenthesis
E = Exponents
M = Multiply
D = Dividing
A = Adding
S = Subtracting

First find the exponents inside the middlest parenthesis.

Now add inside the parenthesis.

Multiply inside the parenthesis that are left.

Divide inside the parenthesis

Add inside the parenthesis.

Multiply.

~ Hope this helps you!
We know
expression is used for represent the derivative.
Actually, derivative is the second name of " Rate of Change".
And if we read
, it represents the "Rate of change of y with respect to x".
In simple words, a derivative is the rate of change or slope of a very small portion of a function.
dy represents very small change in y-coordinate and dx represents very small change in x-coordinate.
Because deriviate is the second name of " a very small rate of change".
We use
to represent the derivative.
The answer is C. Hope this helped!
I’m not so sure about this one but my guess would be maybe C