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3 years ago

Alan rolls two number cubes. What is the probability that the sum of the two numbers will equal 9?

Mathematics

1 answer:

Ivahew [28]3 years ago

6 0

The answer is 2/15 because it can either be 4 and 5 or 3 and 6

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What is the measure of y

aleksklad [387]

155

Just add the angles up.

7 0

2 years ago

Different dealers may sell the same car for different prices. The sale prices for a particular car are normally distributed with

Stels [109]

Answer:

P(X > 25) = 0.69

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 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.

The sale prices for a particular car are normally distributed with a mean and standard deviation of 26 thousand dollars and 2 thousand dollars, respectively.

This means that $\mu = 26, \sigma = 2$

Find P(X>25)

This is 1 subtracted by the pvalue of Z when X = 25. So

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

$Z = \frac{25 - 26}{2}$

$Z = -0.5$

$Z = -0.5$ has a pvalue of 0.31

1 - 0.31 = 0.69.

P(X > 25) = 0.69

4 0

2 years ago

9. John bought a used truck for $4,500. He made an agreement with the dealer to put $1,500 down and make payments of $350 for th

kirza4 [7]

Answer:

11.111111111111111...%

6 0

3 years ago

The value in dollars v(x), of a certain truck after x years is represented by the equation v(x)= 32,500(0.92) raised to the x po

s2008m [1.1K]

The 32,500 is the original cost of the truck and the (0.92) You take v(x)=32,500(0.92)
and raise that to the 2nd power, to represent the 2nd year and you will get an answer of $27,300.
Each year the truck is losing $2,600 in value, after two years the truck has lost $5,200 in value equalling
= $27,300

8 0

3 years ago

Which coordinate plane shows the graph of 3x + y > 9

RoseWind [281]

Well considering that you did not give any option to choose from I cant give you an answer, but the graph should look like a line with the y-intercept at 9 and the x-intercept at 3, and all of the region to the right of the line shaded

4 0

3 years ago