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Zigmanuir [339]
2 years ago
9

Jan's pencil is 8.5 cm long Ted's pencil is longer which could be the length of Ted's pencil

Mathematics
1 answer:
KatRina [158]2 years ago
4 0
Anything that is above 8.5 cm in length
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A factory dumps an average of 2.43 tons of pollutants into a river every week. if the standard deviation is 0.88 tons, what is t
vovikov84 [41]
25.8%  
First, determine how many standard deviations from the norm that 3 tons are. So:
 (3 - 2.43) / 0.88 = 0.57/0.88 = 0.647727273  
So 3 tons would be 0.647727273 deviations from the norm. Now using a standard normal table, lookup the value 0.65 (the table I'm using has z-values to only 2 decimal places, so I rounded the z-value I got from 0.647727273 to 0.65). The value I got is 0.24215. Now this value is the probability of getting a value between the mean and the z-score. What I want is the probability of getting that z-score and anything higher. So subtract the value from 0.5, so 0.5 - 0.24215 = 0.25785 = 25.785%  
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5 0
2 years ago
3.2x + 7.9 + 8.2 + 6.7x<br> Simplify the expressions. (not equations!) <br> Please help ASAP.
Temka [501]

Answer:

9.9x + 16.1

Step-by-step explanation:

SImplify using like terms

Simplify:

  • 3.2x + 7.9 + 8.2 + 6.7x
  • 3.2x + 6.7x + 7.9 + 8.2
  • 9.9x + 16.1

-Chetan K

4 0
2 years ago
What does this mean? I don’t understand.
Nutka1998 [239]

ninety four means $94. 36/100 means $0.36. when you put these together you get $94.36

5 0
2 years ago
What is the sum or difference of 517 37/50 + 312 3/100
Romashka [77]
The sum is 829.77, and the difference is 205.44
8 0
3 years ago
HELP QUICK PLS!
RoseWind [281]
C), cause you would subtract 5 from 53 in order to move it, and would get 6x=48. Then, you would divide by six on both sides, and the answer would be x=8, so Number C.
6 0
3 years ago
Read 2 more answers
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