Answer:
Cos A = x/z
Step-by-step explanation:
You need to memorize the definitions of all the trig functions and then these types of problems become easy! OK?
Cos = adjacent side/hypotenuse
Cos A = x/z
Answer:
y = -2x
Step-by-step explanation:
We have direct variation means
y =kx
We know y and x
10 = k (-5)
Solve for k by diving by -5
10/-5 = k (-5)/-5
-2 = k
y = -2x
Answer:
She would have saved 14 dollars more
Step-by-step explanation:
Hope this helps and plz mark brainliest :)
Answer:

Step-by-step explanation:
Rule: 

Answer:
2561.2785
Step-by-step explanation: