Complementary angles are those angles whose sum is 90 degree.
The measurement of two complementary angles are

There sum have to be 90 degree. That is

Combining like terms ,

Moving 20 to right side

Dividing both sides by 5

So the measurement of the angles are

It is a because it can’t be B and it can’t be C and it can’t be D so my answer is a
Answer:A
Step-by-step explanation:A
I hope this helps you
(-2/4+3/4).1/5
1/4.1/5
1/20
Answer:

Step-by-step explanation:
The function <em>F(x)</em> is an antiderivative of the function <em>f(x)</em> on an interval <em>I</em> if
<em>F′(x)</em> = <em>f(x)</em> for all <em>x </em>in <em>I</em>.
The function <em>F(x) + C</em> is the General Antiderivative of the function <em>f(x)</em> on an interval <em>I</em> if <em>F′(x) = f(x)</em> for all <em>x</em> in <em>I </em>and <em>C</em> is an arbitrary constant.
The Indefinite Integral of <em>f(x)</em> is the General Antiderivative of <em>f(x)</em>.

To find the first antiderivative you must integrate the function 

To find the second antiderivative you must integrate the function 

Therefore,
