Answer:
-4
Step-by-step explanation:
3(-1)-1 PEMDAS
-3-1=-4
Answer:
b
Step-by-step explanation:
sin θ=√(1-cos²θ)=√(1-9/25)=√(16/25)=4/5
sin 2θ=2sin θ × cos θ=2×3/5×4/5=24/25
Answer:
Yes, this is A Linear Function!
Step-by-step explanation:
This is a linear function beacuse linear functions are straight lines on the graph as you may know. So when we graph these numbers it turns up as a straight increasing linear line.
(I attached a pic for u)
Hope this helps!
<3 me if it did!
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
