Before liquid crystal display (lcd) computer and television screens, the screens were cathode-ray tubes (crts), in which a beam of electrons was shot toward a phosphorescent screen at high speed and deflected by electric fields in order to direct the beam to the right place on the screen so it would form the picture. in a typical television, the speed of the electrons is 1 x 10^8 m/s

answer: no

step-by-step explanation:

you are only given the cost not the amount of pounds.

he has 140 chickens because he has 10 times more chickens than ducks and he has 14 ducks so 14*10=140

third choice down

step-by-step explanation:

the first inequality is based on the number of adults and campers, and the second inequality is based on the cost of feeding both the adult and the camper.

we know that there is room for 525 people max.   it's ok to have less than 525, but it's not ok to have more than 525, so the inequality is less than or equal to.   the number combination of adults (x) and campers (y) cannot exceed this 525 max.   therefore:

x + y ≤ 525

now we talk about cost.   it costs $9 to feed one adult, so depending upon the number of adults you have (x) depends upon how much it will cost to feed that number of adults.   same with the campers, who cost $5 to feed.   the adults can be represented by 9x and the campers can be represented by 5y.   since the budget cannot exceed 1,200, the second inequality is:

9x + 5y ≤ 1200

its   c, f, a

step-by-step explanation: