Answer:
the third one
Step-by-step explanation:
add 2y and 16 to both sides. then divide by 2
A straight line is 180°. 180°-135°=55°, so x=55°, which is an acute angle because it is less than 90°.

Integrating gives

To compute the integral, substitute
, so that
. Then

Since
for all
, we can drop the absolute value, so we end up with

Given that
, we have

so that

Answer:
3c-9d+7c+5d becomes this when it is simplified 10c - 4d
Step-by-step explanation:



add 15 to both sides:


subtract 6x from both sides:


Both sides are equal : true for all x
Answer D
hope this helps!