The hour hand makes a full circle of 12 hr, in 45 min=0.75 hours it will will have made 0.75/12 of a full circle. Given that the tip of the hour hand travels along the circumference of a circle, the radius of circle will be equal to the lenth of the hand.
But:
circumference is given by:
C=2*π*radius
The distance traveled by the hand in 12 hours will be:
2**36=76π mm
The distance traveled in 45 min will be:
0.75/12 *72π=4.5π mm
in 45min, the min hand will make 45/60=3/4 of a full circle. If the min hand is 150% of the hour hand, then its length is 150/100*36=54 mm.
Thus the tip of the minute will travel along the entire circuference of a circle with a 54 mm radius, this implies that for a full circle we shall have:
2*π*54mm=108π mm.
Hence;
in 45 min, the tip of the minute hand will have traveled 108*3/4*π=81π mm
Answer:
x = 3, y = -8
x = 4, y = -5
x = 5, y = -2
x = 6, y = 1
Step-by-step explanation:
You can apply the equation y = 3x - 17 for the different values for x.
x = 3
y = 3(3) - 17
= 9 - 17
= -8
x = 4
y = 3(4) - 17
= 12 - 17
= -5
x = 5
y = 3(5) - 17
= 15 - 17
= -2
x = 6
y = 3(6) - 17
= 18 - 17
= 1
Answer:
3 Rd one I think, it's correct
Answer:
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Answer:
Step-by-step explanation:145-70=75
75+29=104