Find the median first.
78, 80, 83, 85, 86, 87, 90. The middle one is 85, so there's the median. Take the upper half of this set, not including the median, 85, and then subtract 86 from 90. This is 4, so this is the interquartile range.
Answer:
D
Step-by-step explanation:
When a segment is cut exactly in half at the midpoint at a 90 degree angle. then it is called a perpendicular bisector.
Perpendicular bisector from its name suggest a line that is perpendicular to another line and that also bisects the other line.
A perpendicular bisector is a line which cuts another line in two equal haves forming an angle of 90° with the line.
If any of these features are not there, then it is not a perpendicular bisector.
Therefore, when a segment is cut exactly in half at the midpoint at a 90 degree angle. then it is called a perpendicular bisector.
Learn more about perpendicular bisector. here:
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Answer:
Multiply each number by the little number next to it then add. It will be a huge number.
Step-by-step explanation: Above.
Answer:

Step-by-step explanation:
Solution:-
The position of any particle or object lying on a circular surface which is rotating with an angular speed of ( w ).
The motion of the particle/object can be expressed as sinusoidal or harmonic motion. We can express the motion of the particle in the cartesian coordinate system using a sinusoidal waveform.
The position of the particle/object from the central axis at time t = 0 can be given in the form:
h ( t ) = A*sin ( w*t )
Where, A: The amplitude of the particle in motion ( in )
w: The angular frequency of rotation ( rad/s )
The amplitude ( A ) of the sinusoidal waveform is determined from the maximum displacement of the particle/object from the horizontal axis which defined by the radius of the fidget spinner where the particle is located. Hence, A = 4 in
The fidget rotates at 3000 rpm. We need to determine the angular speed of the particle. Assuming no slip conditions, the particle also rotates at 3000 rpm.
We will first convert 3000 rpm into rad/s as follows:

The sinusoidal function that models h ( t ) can be written as:
