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DIA [1.3K]
2 years ago
6

Help please? Questions 1-15 i really need it♡

Mathematics
1 answer:
Novosadov [1.4K]2 years ago
7 0

Answer:

here:

1. -9

2. -28

3. 54

4. -100

5. -60

6. -0

7.  49

8. -135

9. -96

10. 300

11. -153

12. -192

THIS TOOK LONG BECAUSE I DID A LONG ONE BUT THEN I MADE IT SHORTER. :D

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If the weight (in grams) of cereal in a box of Lucky Charms is N(489,6), what is the probability that the box will contain less
Wittaler [7]

Answer:

0.000064 = 0.0064% probability that the box will contain less than the advertised weight of 466 g.

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.

N(489,6)

This means that \mu = 489, \sigma = 6

What is the probability that the box will contain less than the advertised weight of 466 g?

This is the p-value of Z when X = 466. So

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

Z = \frac{466 - 489}{6}

Z = -3.83

Z = -3.83 has a p-value of 0.000064

0.000064 = 0.0064% probability that the box will contain less than the advertised weight of 466 g.

3 0
2 years ago
5. Find the value of x in each of the following.<br> 2/3=6/x. 4/7=x/21
nikitadnepr [17]
6/9 and 12/21
i think this is the answer your looking for
7 0
2 years ago
PLEASE HELP ASAP!!<br>If f(x) = 2x+3 and g(x) = x^2+x/2 - 7 then find (f+g)(x)
strojnjashka [21]

Answer:

x2+5x/2 -4

Step-by-step explanation:

f(x) = 2x+3 and g(x) = x^(2)+(x)/(2) - 7 , what is  (f+g)(x)

x^2+5x/2-4

8 0
3 years ago
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Korvikt [17]

Answer:

8y + 8x + 0

Step-by-step explanation:

4 0
3 years ago
Write an equation for the nth term of the arithmetic sequence 12,14,16,18
Elan Coil [88]

\bf 12~~,~~\stackrel{12+2}{14}~~,~~\stackrel{14+2}{16}~~,~~\stackrel{16+2}{18}\qquad \qquad \stackrel{\textit{common difference}}{d = 2} \\\\[-0.35em] ~\dotfill\\\\ n^{th}\textit{ term of an arithmetic sequence} \\\\ a_n=a_1+(n-1)d\qquad \begin{cases} a_n=n^{th}\ term\\ n=\textit{term position}\\ a_1=\textit{first term}\\ d=\textit{common difference}\\ \cline{1-1} a_1=12\\ d = 2 \end{cases} \\\\\\ a_n=12+(n-1)2\implies a_n=12+2n-2\implies a_n=2n+10

4 0
3 years ago
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