1st : x² -8x - 24 =0
x'= ( 8 + √[(8² - 4 (1)(-24)] / 2 and x" = ( 8 - √[(8² - 4 (1)(-24)] / 2
x' = (8+√160) / 2 = (8+√(16x10) / 2 and x = (8+4√10)/2, simplify by 2
x' = 4+2√10, same for x" = 4 -2√10
2nd: Let x be the number of people to invite.
Given: cost of the band $750
cost of food : x.$2.25
Total cost = $750 + $2.25.x
To find the average you divide the total cost by the number of guest, that is x.
Average = ($750 + $2.25.x)/x
a)- For an average of $2.75
($750 + $2.25.x)/x =2.75 Solve for x and you will find 1500 guests
b)- For an average of $3.25
($750 + $2.25.x)/x =3.25 Solve for x and you will find 750 guests
So:
750<p<1500 (answer number 4)
<span>Summer is your right brain coming out of its coma, telling you to look for the hidden calligraphic messages written in body hair.</span>
It’s a triangle in an ocean that many boats and people have gone missing and no one have found them
Answer: Legal action is an effective way to discover information about the dangers of concussions
Explanation:
The best inference that is supported by the sentence is that "Legal action is an effective way to discover information about the dangers of concussions''.
From the sentences given, it's stated that more than 2,000 retired NFL players filed a lawsuit against football helmet maker Riddell and the NFL because they hid information about dangers of concussions.