Answer:
The answer world be 3.
Step-by-step explanation:
5 + 2² - 3(2) = 3
-10x + 1.5 because you get rid of the parenthesis so -2 times 5 is -10 ( -10x ) and then -2 times -0.75 equals positive 1.5 due to two negatives canceling out to positive hope this helped!
The grade on the west side would be the vertical rise divided by the horizontal run or 525 divided by 800' or rounded off to 66% (a steep grade as in an underground mine a grade of 25% is considered very steep for vehicles to go up or conveyors to travel). On the east side the 40% grade was obtained by dividing the 525' vertical height by the 1300' run.
Answer:
The quadratic equation is x^2 + 4x - 32 = 0
Step-by-step explanation:
(x - 4)(x+8) = 0
x^2 + 4x - 32= 0
0.4286 would be the decimal