Researchers wanted to determine whether a new topical ointment would help alleviate the signs and symptoms of a skin disease knows as eczema. the new ointment was distributed to 2000 people worldwide who suffer from eczema. at the end of the trial period of one month, the researchers examined the skin of each participant and concluded that 80% of them had shown significant improvement. therefore, they concluded that the new ointment is a valid new treatment and should be forwarded to the FDA for approval. was this a valid conclusion? explain your answer

the answers are in the images, i received 100% on this assignment. hope this !

i need a picture

step-by-step explanation:

answer: rolling a number cube and flipping a coin.

step-by-step explanation:

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