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malfutka [58]
3 years ago
5

I need help on 19 and 20. Please help me. Please don’t put a link. Please help me.

Mathematics
1 answer:
lianna [129]3 years ago
6 0

Answer:

19:

4  <   third side    <   14  

20:

3  <   third side    <   13  

Step-by-step explanation:

hint: go to http://www.17 28.org/trianinq.htm

(fix the space between 17 and 28)

you're welcome xx

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Tim sold half of his comic books then bought 8 more. He now has 17. How many did he start with?
disa [49]

Answer:

18

Step-by-step explanation:

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A set of wrist watch prices are normally distributed with a mean of 767676 dollars and a standard deviation of 101010 dollars. W
Akimi4 [234]

Answer:

0.8224

Step-by-step explanation:

Data

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  • standard deviation, sd: $10
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  • second value of interest, x2: $90

z-score for x1:

z1 = (x1 - mean)/sd = (63 - 76)/10 = -1.3

z-score for x2:

z2 = (x2 - mean)/sd = (90 - 76)/10 =  1.4

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P(z1 < z < z2) = P(z < 1.4) - P(z < -1.3)

P(z < 1.4) = 0.9192 (see first picture attached)

P(z < -1.3) = 0.0968 (see second picture attached)

P(z1 < z < z2) = 0.9192 - 0.0968 = 0.8224

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3 years ago
What is the slope for (5,7) (-4,-2)
Wewaii [24]

Answer:

Slope = 1

Step-by-step explanation:

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2 years ago
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Answer:

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Step-by-step explanation:

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Any help I would really appreciate it
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Answer:

C and D

Step-by-step explanation:

You can tell if equations have no solution if the variables on both sides of the equation are the same.

Choice C is 10+6x=15+9x-3x. You would combine 9x and -3x, turning the equation into 10+6x=15+6x. Since there is a 6x on both sides, Choice C would have no solution.

The same for Choice D. When you simplify everything there is a 3x on both sides, so it would have no solution.

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3 years ago
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