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Serggg [28]
2 years ago
8

20 POINTS AND WILL MARK BRAINLIEST

Mathematics
2 answers:
vovangra [49]2 years ago
6 0
Dan815 says:

548 5/8 are 7th grade = 5/8*548=#nmber of 7th graders in total 3/8th are 8th graders = 3/8 *548=#of 8th graders in total 4/5 of Total 7th graders = 4/5*5/8*548 7/8 of total 8th graders = 7/8*3/8*548

Happy studying!
pashok25 [27]2 years ago
6 0
Let's find an eighth of 584. Break this down step by step.

584/8= 73

So, eighth equals = 73.

Now find how many seven and eighth-graders there are by multiplying 73 by the desired number.

73*5= 365 (seventh graders)

73*3= 219 (eighth graders)

So, just divide both numbers by the denominator of the fraction used, and then multiply by the numerator for the correct amount of both who participated.

365/ 5= 73

73*4= 292

292 of the seventh graders participated.

219/8= 27.375

Multiply that by the numerator.

27.375*7= 191.625 (8th graders)

The question said about how many participated, so round 191 up to 192.

292 seventh graders and 192 eighth graders participated in field day.

I hope this helps!
~kaikers
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Which of the following is the complete list of roots for the polynomial function f (x) = (x2 + 6x + 8) (x2 + 6x + 13)?
Natali5045456 [20]

Answer:

-2, -4, -3 + 2i, -3-2i

Step-by-step explanation:

Equaling the function to zero we have:

(x ^ 2 + 6x + 8) (x ^ 2 + 6x + 13) = 0  

For the first parenthesis we have:

(x ^ 2 + 6x + 8) = 0\\(x + 4) (x + 2) = 0  

Therefore the roots are:

x = - 4\\x = - 2  

For the second parenthesis we have:

(x ^ 2 + 6x + 13) = 0  

By completing squares we have:

x ^ 2 + 6x = -13  

x ^ 2 + 6x + (\frac{6}{2}) ^ 2 = -13 + (\frac{6}{2}) ^ 2\\x ^ 2 + 6x + 9 = -13 + 9\\(x + 3) ^ 2 = - 4\\x + 3 = +/- \sqrt{-4}    

Therefore the roots are:

x = -3 + 2i\\x = -3 - 2i  

Hope this was helpful

6 0
3 years ago
Follow the rule x2+2 to complete the pattern of 8
lilavasa [31]
I think your saying 8=x if that is the case then you would plug it in (8)2+2 which would equal 18
4 0
3 years ago
PLEASE HELP!!! ill give you brainlest:)) TPWK!!!
docker41 [41]

Answer:

82m²

Step-by-step explanation:

split it into a rectangle and square

3x6=18

8x8=64

total area = 82

4 0
2 years ago
Read 2 more answers
HELP! How do I complete this table?
zloy xaker [14]

Answer:

6 1/2

Step-by-step explanation:

i don't know the rest but I know that that one might be 6 1/2

4 0
2 years ago
Help me!! Find the area of this figure.​
Nezavi [6.7K]

Answer:

510

Step-by-step explanation:

divide into chunks. I divided it like how you would draw the equal sign.

for top chunk, 20*8=160

for 2nd chunk, 8*25=200

for the last chunk, 15*10=150

add up 160, 200, and 150

8 0
3 years ago
Read 2 more answers
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