There are many ways to do this depending on the property you have to use:
If you use the distributive property, you need to distribute 3/4 to -10 and 2/5. Distribute means you will multiply it so your resulting equation will be this:

Before you can add, you need to first make them like terms because you cannot add unlike fractions. Get the LCD and form your new equation:

Now you can just add them together to get:

and then simplify your fraction:

or -
The whole fraction becomes negative because when you divide integers and of them is negative, the final answer will be negative.
Answer:
11) 
12) 
13) 
14) 
15) 
16) 
Step-by-step explanation:
For these problems I used the pythagorean theorem:
and SOHCAHTOA
Sin = 
Cos = 
Tan = 
11)
First find the length of the bottom side by using Cos



Then plug it into the formula for the pythagorean theorem to find the hypotenuse




12)
Find the length of the bottom side using Cos



Then plug it into the formula for the pythagorean theorem to find the hypotenuse




13)
Find the length of the other side by using Tan



Then plug it into the formula for the pythagorean theorem to find the hypotenuse




14)
(This is probably an easier way to do these problems)
Find the hypotenuse by using Cos (
)




15)
Find the hypotenuse using Sin (
)



16)
Find the hypotenuse using Cos (
)




Answer:
It is B
Step-by-step explanation: n is -1.5 and m is 2.5
-1.5 + 2.5 = 2
Answer:
18
Step-by-step explanation:
we start to write a few iterations of 6 and 9:
6, 12, 18, 24, 30, 36, 42, 48, 54, 60, ...
9, 18, 27, 36, 45, 54, 63, 72, 81, 90, ...
the LCD is the least repeating number in both sequences. It is 18
I hope this helps you understand how to do the problem.