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kap26 [50]
3 years ago
9

Plz help been stuck for a while now

Mathematics
1 answer:
Archy [21]3 years ago
7 0
13.5 is the answer !
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Find the roots. 2x ^2 + 4x - 5 =0
Vinvika [58]
Literally the roots equal 0. Is that “X” or the multiplication sign? Because I did it with “X” and it gave me “0”
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3 years ago
The weight of people in a small town in Missouri is known to be normally distributed with a mean of 186 pounds and a standard de
OleMash [197]

Answer:

the probability that a random sample of 17 persons will exceed the weight limit of 3,417 pounds is 0.0166

Step-by-step explanation:

The summary of the given statistical data set are:

Sample Mean = 186

Standard deviation = 29

Maximum capacity 3,417 pounds or 17 persons.

sample size = 17

population mean =3417

The objective is to determine the probability  that a random sample of 17 persons will exceed the weight limit of 3,417 pounds

In order to do that;

Let assume X to be the random variable that follows the normal distribution;

where;

Mean \mu = 186 × 17 = 3162

Standard deviation = 29* \sqrt{17}

Standard deviation = 119.57

P(X>3417) = P(\dfrac{X - \mu}{\sigma}>\dfrac{X - \mu}{\sigma})

P(X>3417) = P(\dfrac{3417 - \mu}{\sigma}>\dfrac{3417 - 3162}{119.57})

P(X>3417) = P(Z>\dfrac{255}{119.57})

P(X>3417) = P(Z>2.133)

P(X>3417) =1- 0.9834

P(X>3417) =0.0166

Therefore; the probability that a random sample of 17 persons will exceed the weight limit of 3,417 pounds is 0.0166

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3 years ago
What is the answer to this division equation?
madreJ [45]

Answer:

The answer is B; 5 r. 3

Step-by-step explanation:

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2 years ago
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True or False. (1, – 7) is a solution to the following systems of equations.
Dennis_Churaev [7]

Answer:

False

Step-by-step explanation:

Hope it helps

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How many time can 9 go into 11
Murljashka [212]

Answer:

1.2

11 \div 9 = 1  remainder 2\\2 \div 9 = .2

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3 years ago
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