The slope of one of the diagonals of a square is - 3. What must be the slope of the other diagonal?

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  1/3

Step-by-step explanation:

The diagonals of a square cross at right angles. The slope of the other is the negative reciprocal of the slope of the given diagonal:

  -1/(-3) = 1/3

The slope of the other diagonal is 1/3.

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.

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²