Well I can't be for sure but I know for a fact its not set IV it's not possible to make a triangle out of all right angles. Set II, well, that isn't right either. You can't make a triangle out of all obtuse angles. Like the right angle one, its not possible you can only use one obtuse or right angle in a triangle other wise it's not going to be a triangle. I'd say go try Set III since that would most likely make an equilateral triangle.
Answer:
Yes, because 50 • 9 = 450 and 450 is greater than 437.
50 • 9 = 450 > 437
Step-by-step explanation:
Hope this helped
Answer:
The answer is 7x^3 - 8x^2 - 20x + 3
Step-by-step explanation:
Simplify the expression.
Hoped this helped!
Answer:

Step-by-step explanation:
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or 
Let
y-------> the interest earned on an account
x------> the balance in the account
step 1
Find the constant k of proportionality
For 

substitute the values

The equation is

step 2
Find the amount of interest earned on an account with a balance of $500
so
For
substitute in the equation and solve for y

Answer:
B. 84 square units
Step-by-step explanation:
I've drawn a photo if you want an explantion, but if you still don't understand, please let me know! Cheers!