Step-by-step explanation:
y=3x
so
3x=-x+4
3x+x=4
4x=4
x=1
so
y=3(1)
y=3
IK IT HELPS YOU SO NO THANKS
Answer:
Step-by-step explanation:
To find the values of the angle which makes maximum r you use the derivative of r

If you equals this derivative to zero you obtain the value of the angle:

However, the values of 5π/6 and 9π/6 are also available, because makes the sinusoidal function equal to 1.
hence, the answer is:

answer b
First we put 7 in the place of y, after that subtract 7 from both sides, the answer is -2.
x + y= 5 y = 7
x+ 7=5
x= 5-7
x = -2
774.4 miles divided by 24.2 mpg = 32 gallons of gas