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A light bulb is to be put in the middle of a room defined by the coordinates (10,5), (10,25), (20, 5) and (20,25). At what coordinate should the light bulb be placed?

Firstly we should try to establish the geometry of the room, ie identify the lines in which the walls lay.
Noticing that two of the points have the same x coordinate of x = 10 suggests that there mu...

TL
Answered by Taiwo L. Maths tutor
3005 Views

Find the median, upper and lower quartiles of these numbers: 160, 390, 169, 175, 125, 420, 171, 250, 210, 258, 186, 243

Order the data:125, 160, 169, 171, 175, 186, 210, 243, 250, 258, 390, 420Find middle observation:[125, 160, 169, 171, 175, 186] | [210, 243, 250, 258, 390, 420]Median = (186 + 210)/2 = 198Find middle obse...

SL
Answered by Samuel L. Maths tutor
4068 Views

Could you explain the blood flow through the heart?

Deoxygenated blood enters through the right atrium from vena cava, moves through tricuspid valve into right ventricle. This moves up the pulmonary artery to the lungs and oxygenates.Oxygenated blood enter...

NV
Answered by Neel V. Biology tutor
2826 Views

How do you know whether a noun is masculine or feminine in French?

This is a common question from all French students with no straightforward answer. This question can only fully be answered through experience and memorisation of the French nouns with their gender. Howev...

NG
Answered by Natasha G. French tutor
2327 Views

Describe the lytic pathway of a virus.

The lytic cycle is one of the two cycles of viral reproduction in host cells. 
Viruses cannot replicate outside a host, therefore virus binds to host cells. Adsorption and penetration

NG
Answered by Nisha G. Biology tutor
10507 Views

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