True or false is 6x10^5 is 20 times as much as 3x10^4

Answers

Answer 1

Answer:

answer

TRUE

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What is the total? Add those together.

Answers

Answer:

whats the whole question

Step-by-step explanation:

A 0.8-liter bottle of Mexican wine costs 101 pesos. At thatprice, how much would a half-gallon jug of the same wine cost indollars?

Answers

Answer:

$12.18

Step-by-step explanation:

Given:

Cost of 0.8 liter bottle of Mexican wine = 101 pesos

cost of 1 liter bottle of Mexican wine = $\frac{\textup{101}}{\textup{0.8}}$ pesos

Now,

1 Mexican pesos = 0.051 dollars

thus,

cost of 1 liter bottle of Mexican wine = $\frac{\textup{101}}{\textup{0.8}}*0.051$ dollars

also,

1 gallon = 3.78541 Liter

Thus,

half gallon = $\frac{\textup{3.78541}}{\textup{2}}$ = 1.892705 Liters

therefore,

cost of half gallon jug = $\frac{\textup{101}}{\textup{0.8}}*0.051*1.892705$ dollars

cost of half gallon jug of wine = $12.18

In a study of factors affecting whether soldiers decide to reenlist, 320 subjects were measured for an index of satisfaction. The sample mean is 28.8 and the sample standard deviation is 7.3. Use the given sample data to construct the 98 percent confidence interval for the population mean.

Answers

Answer:

The 98 percent confidence interval for the population mean is between 27.85 and 29.75 subjects.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = (1-0.98)/(2) = 0.01$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.01 = 0.99$ , so $z = 2.325$

Now, find M as such

$M = z*(\sigma)/(√(n))$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 2.325(7.3)/(√(320)) = 0.9488$

The lower end of the interval is the mean subtracted by M. So it is 28.8 - 0.9488 = 27.85 subjects.

The upper end of the interval is the mean added to M. So it is 28.8 + 0.9488 = 29.75 subjects.

The 98 percent confidence interval for the population mean is between 27.85 and 29.75 subjects.

. What integer represents a gain of 3 yards?

Answers

The answer is: +3 or also known as 3

Final answer:

To represent a gain of 3 yards, we can use the integer +3.

Explanation:

To represent a gain of 3 yards, we can use the integer +3. In mathematics, when we refer to a gain or increase, we use a positive sign (+) in front of the number. So, in this case, the integer +3 represents a gain of 3 yards.

Learn more about integer representation of a gain here:

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Gibson (1986) asked a sample of college students to complete a self-esteem scale on which the midpoint of the scale was the score 108. He found that the average self-esteem score for the samples well above the actual midpoint of the scale. Given that the standard deviation of self esteem scores was 28.15, what would be the score for a sample participant whose ser esteem score was a. 101.67 b. -0.23 c. -0.87 d.0 e. -1.19 f. 0.97

Answers

Answer:

Option B) -0.23

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 108

Standard Deviation, σ = 28.15

Formula:

$z_(score) = \displaystyle(x-\mu)/(\sigma)$

We are given x = 101.67

We have to find the corresponding z-score.

Putting values, we get,

$z_(score) = \displaystyle(101.67-108)/(28.15) = -0.2248 \approx -0.23$

Thus, the correct answer is

Option B) -0.23

Suppose that there are 13 people (nine men and four women) standing ona platform, which has a weight capacity of 2100 pounds. Weights of men are normally distributed withmean 160 pounds and standard deviation 20 pounds. Weights of women are normally distributed,with mean 125 pound and standard deviation 15 pounds. Suppose weights of these 13 people areindependent of each other. What is the probability that the platform will collapse

Answers

Answer:

346

Step-by-step explanation:

i just talked to my teacher

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