<u>Answer:</u>
11
<u>Step-by-step explanation:</u>
We are given the following expression and we are to solve it:

Simplifying both the fractions before adding them to make it easier to solve:
= 
= 
= 
Therefore, the answer to the given mathematical expression is 11.
First get the tangent vectors by differentiating r1 and r2

Evaluate at t=0

Use identity for angle between 2 vectors:

Evaluate dot product and unit vectors:

Sub into identity and solve for theta:

Answer:
Angle of intersection is about 79 degrees.
Answer:
55w+145
Step-by-step explanation:
(10w+120)+(45w+25)
=10w+120+45w+25
=45w+10w+120+25
=(45w+10w)+(120+25)
=55w+145
Answer:
i think the answer is a. but not for sure
Answer
The slope is 2
Step-by-step explanation: