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Bas_tet [7]
3 years ago
9

What is the sign of 46.2 + 112.2

Mathematics
2 answers:
djverab [1.8K]3 years ago
8 0

Answer: Positive 158.4

Step-by-step explanation:

Vika [28.1K]3 years ago
5 0

Answer:

Positive

Step-by-step explanation:

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Assume the readings on thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. Find the pro
lisov135 [29]

Answer:

0.0326 = 3.26% probability that a randomly selected thermometer reads between −2.23 and −1.69.

The sketch is drawn at the end.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean of 0°C and a standard deviation of 1.00°C.

This means that \mu = 0, \sigma = 1

Find the probability that a randomly selected thermometer reads between −2.23 and −1.69

This is the p-value of Z when X = -1.69 subtracted by the p-value of Z when X = -2.23.

X = -1.69

Z = \frac{X - \mu}{\sigma}

Z = \frac{-1.69 - 0}{1}

Z = -1.69

Z = -1.69 has a p-value of 0.0455

X = -2.23

Z = \frac{X - \mu}{\sigma}

Z = \frac{-2.23 - 0}{1}

Z = -2.23

Z = -2.23 has a p-value of 0.0129

0.0455 - 0.0129 = 0.0326

0.0326 = 3.26% probability that a randomly selected thermometer reads between −2.23 and −1.69.

Sketch:

3 0
3 years ago
19 dollar fortnite card who wants it and yes i am giving it away.
V125BC [204]
NOO MOREEE FORTNITEEEEE
5 0
3 years ago
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Suppose a triangle has sides a, b, and c, and let theta be the angle opposite the side of length a. If cos theta > 0 what mus
borishaifa [10]
I think the answer is d or b if im wrong sorry hope this helped tho :p
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3 years ago
Read 2 more answers
You pick two marbles from a bag with 5 blue marbles, 3 red marbles, and 2 green marbles. You pick the second marble without repl
SOVA2 [1]

Answer:

1/9

Step-by-step explanation:

3 red

2 blue

5 green

Total

3

+

2

+

5

=10

Probability of blue is

2

10

~~~~~~~~~~~~~~~~~~~~~~~

Second condition:

3 red

1 blue

5 green

New total

3

+

1

+

5

=

9

Probability of green is

5

9

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Total probability of selecting this path is:

2

10

×

5

9

=

2

9

×

5

10

 

=

2

9

×

1

2

=

1

9

7 0
2 years ago
What is expression for 1/4y+3/8 factored
Llana [10]
1/4*x=3/8

1*x=3*4/8

X=12/8

3/2
3 0
3 years ago
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