A400-ft equal tangent sag vertical curve has its pvc at station 100+00 and elevation 500 ft. the initial grade is -4.0% and the final frade is +2.5%. determine the elevation of the lowest point of the curve.

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.

answer: (1,3) (3,-1) (5,-5) ?

step-by-step explanation:

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