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nevsk [136]
3 years ago
15

50 POINTS HELP HELP PLZ

Mathematics
2 answers:
Usimov [2.4K]3 years ago
4 0

<em>The</em><em> </em><em>right</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>(</em><em>5</em><em>,</em><em>1</em><em>2</em><em>,</em><em>1</em><em>3</em><em>)</em>

<em>look</em><em> </em><em>at</em><em> </em><em>the</em><em> </em><em>attached</em><em> </em><em>picture</em>

<em>Hope</em><em> </em><em>it</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>you</em>

<em>Good</em><em> </em><em>luck</em><em> </em><em>on</em><em> </em><em>your</em><em> </em><em>assignment</em>

prohojiy [21]3 years ago
3 0

Answer:

Step-by-step explanation:

its 5, 12 and 13

its the most common pythagorean triplet ever known.

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Classify the polynomial 2x3 + 6x2 - 4 by the number of terms.
Andrej [43]

Answer:

trinomial

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Can the sides of a right triangle have sides the length of 48.5ft,30ft,32.5ft
myrzilka [38]

Answer:

No

Step-by-step explanation:

8 0
3 years ago
Type the correct answer in the box. Use numerals instead of words. Enter your answer as a fraction in simplest form, using/ for
castortr0y [4]

Answer:    

1/4

Step-by-step explanation:

Since there is 4 colors and four rooms there is a 1/4 possibility that she paints the room green.

5 0
3 years ago
When we toss a coin, there are two possible outcomes: a head or a tail. Suppose that we toss a coin 100 times. Estimate the appr
marin [14]

Answer:

96.42% probability that the number of tails is between 40 and 60.

Step-by-step explanation:

I am going to use the binomial approximation to the normal to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

Can be approximated to a normal distribution, using the expected value and the standard deviation.

The expected value of the binomial distribution is:

E(X) = np

The standard deviation of the binomial distribution is:

\sqrt{V(X)} = \sqrt{np(1-p)}

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.

When we are approximating a binomial distribution to a normal one, we have that \mu = E(X), \sigma = \sqrt{V(X)}.

In this problem, we have that:

100 tosses, so n = 100

Two outcomes, both equally as likely. So p = \frac{1}{2} = 0.5

So

E(X) = np = 100*0.5 = 50

\sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{100*0.5*0.5} = 5

Estimate the approximate probability that the number of tails is between 40 and 60.

Using continuity correction.

P(40 - 0.5 \leq X \leq 60 + 0.5) = P(39.5 \leq X \leq 60.5)

This is the pvalue of Z when X = 60.5 subtracted by the pvalue of Z when X = 39.5. So

X = 60.5

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

Z = \frac{60.5 - 50}{5}

Z = 2.1

Z = 2.1 has a pvalue of 0.9821

X = 39.5

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

Z = \frac{39.5 - 50}{5}

Z = -2.1

Z = -2.1 has a pvalue of 0.0179

0.9821 - 0.0179 = 0.9642

96.42% probability that the number of tails is between 40 and 60.

8 0
2 years ago
I need help this is due tomorrow
goldfiish [28.3K]

Answer:

x z y is the awnser

Step-by-step explanation:

I'm doing this type of stuff

8 0
3 years ago
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