The U. S. Environmental protection agency (EPA) began on this date in 1970. The roles of the EPA are to protect human health and to safeguard the natural environment (air, water, and land). The EPS monitors the fuel economy tests that vehicle manufacturers use to advertise the gas mileage of their vehicles. The last time you filled the gad tank on your car, the odometer read 72, 369 miles. Now the odometer reads 72, 831 miles and you just spent $56 to fill tank. The price of gas is $4/gallon. What was the fuel economy of your car since your last fill-up?

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step-by-step explanation:

87%

step-by-step explanation:

apex answer

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)