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3 years ago

The change in the value of a stock is represented by the rational number -5.90 describe in words what this means

Mathematics

1 answer:

xxMikexx [17]3 years ago

3 0

We are given : A stock is represented by -5.90.

The given number is a negative number.

Note: When a stock is given by a negative number, it represents the decrease in stock and when a stock is given by a positive number, it represents the increase in stock.

As we are given number is a negative number, we can just say that

" The stock value is being decrease by 5.90".

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A battery has a lifetime that is approximately normally distributed with a mean of 600 hours and a standard deviation of 50 hour

miss Akunina [59]

Answer:

A. Your battery is likely defective since such poor performance is extremely unlikely.

Step-by-step explanation:

When the distribution is normal, we use 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.

If X is more than two standard deviations from the mean, it is considered an unlikely outcome.

In this question, we have that:

$\mu = 600, \sigma = 50$

Which of the following conclusions is the most appropriate given this information?

Lasted 400 hours, so X = 400.

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

$Z = \frac{400 - 600}{50}$

$Z = -4$

4 standard deviations from the mean, so unlikely.

So the correct answer is:

A. Your battery is likely defective since such poor performance is extremely unlikely.

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3 years ago

Find the Quotient.<br>5,483 ÷ 4

prisoha [69]

Answer:

1370.75

Step-by-step explanation:

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3 years ago

Read 2 more answers

Cassidy says that capacity is the same as the amount. Do you agree? Explain why or why not.

telo118 [61]

The capacity is the same as the amount because it refers to the amount of what is inside the object. Lets say you have a bag of chips it refers to the amount inside the bag of chips.

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3 years ago

Jack’s shipping company has to transport boxes of industrial nuts and industrial bolts to its clients. Each box of industrial nu

Ipatiy [6.2K]

Answer:

The correct option is B.

Step-by-step explanation:

Let the boxes of nuts be x and the boxes of bolts by y.

The weight of nut box is 100 kg and the weight of bolt box is 200 kg.The maximum weight the company’s cargo container can hold is 24,000 kilograms.

$100x+200y\leq 24000$

$x+2y\leq 240$ .... (1)

The company needs to transport a minimum of 160 boxes per cargo container.

$x+y\geq 160$ .... (2)

Plot the above inequalities on the coordinate plane.

The related equations are

$x+2y=240$ .... (3)

$x+y=160$ .... (4)

The x-intercept of equation 3 is (240,0) and the y-intercept is (0,120).

The x-intercept of equation 4 is (160,0) and the y-intercept is (0,160).

Check the inequality by (0,0).

$0+2(0)\leq 240$

$0\leq 240$

This statement is true, therefore the shaded region of inequality (1) contains (0,0).

$x+y\geq 160$

$0+0\geq 160$ \

$0\geq 160$

This statement is false, therefore the shaded region of inequality (2) does not contains (0,0).

Therefore graph (2) represents the solution and option B is correct.

4 0

3 years ago

Simplify the expression. 6(7n – 5m) + 8m

balandron [24]

6 (7 n - 5 m) + 8 m
6 (7 n - 5 m) = 42 n - 30 m:
42 n - 30 m + 8 m
Grouping like terms, -30 m + 42 n + 8 m = 42 n + (8 m - 30 m):
42 n + (8 m - 30 m)
8 m - 30 m = -22 m:
42 n + -22 m
Factor 2 out of 42 n - 22 m:
Answer: 2 (21 n - 11 m)

8 0

3 years ago