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PSYCHO15rus [73]
3 years ago
8

A system of inequality, where x is the rate of a spaceship in a video game and y is where the ship travels on the screen in 3.5

seconds, is represented by the graph. which symbol could be written in both circles in order to represent this system algebraically?
​
Mathematics
2 answers:
Agata [3.3K]3 years ago
8 0

Answer: B. >=

Step-by-step explanation: Sorry if I'm late, but here's proof. If you see that both the lines intersect and split ways at -6 x-int on the graphing calculator, its the same graph. So the answer would be >=.

:)

marta [7]3 years ago
4 0

Answer:

The answer is B.

Step-by-step explanation:

Edge 2021 + top comment !

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37 and 1 / 4 = 37 * 6 = 74 * 3 = 222

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2 years ago
Manufacture of a certain component requires three different machining operations. Machining time for each operation has a normal
tigry1 [53]

Answer:

0.0314 = 3.14% probability that it takes at most 1 hour of machining time to produce a randomly selected component

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.

Sum of normal variables:

When normal variables are added, the mean is the sum of the means while the standard deviation is the square root of the sum of the variances.

The mean values are 20, 15, and 30 min, respectively:

This means that \mu = 20 + 15 + 30 = 65

The standard deviations are 1, 2, and 1.5 min, respectively.

This means that \sigma = \sqrt{1^2 + 2^2 + 1.5^2} = 2.6926

What is the probability that it takes at most 1 hour of machining time to produce a randomly selected component?

Mean and standard deviation are in minutes, so this is the pvalue of Z when X = 60.

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

Z = \frac{60 - 65}{2.6926}

Z = -1.86

Z = -1.86 has a pvalue of 0.0314

0.0314 = 3.14% probability that it takes at most 1 hour of machining time to produce a randomly selected component

7 0
2 years ago
What is the simplified form of each expression?<br><br> (7 – c)(–1)
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Answer:

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Step-by-step explanation:

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beks73 [17]

Answer:

35 acres of beans and 23 acres of corn

Step-by-step explanation:

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                          = 29 - 6 = 23 x 600 = 13800

                                                            = 45300

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(x3 + 18x² +81x + 8) = (x + 10)<br> divide polynomials
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