Giving brainlyist to the first person to answer correctly and having a complete answer.

Answer:

8.33

Step-by-step explanation:

1hr=60 minutes

?hr = 500 minutes

To find how many hours, divide 500 by 60

500/60 = 8.33

500 minutes = 8.33 hours

Answer:

90 cups (5.63 gallons)

Step-by-step explanation:

30 divided by 3= 10 10x4= 40 10x2=20

30+40+20=90 cups

Answer:

See below

Step-by-step explanation:

The law of supply states that an increase in the price of a product will increase the quantity supplied for that product

To test the hypothesis that the mean weight of two sheets is equal (μ1 - μ2) against the alternative that it is not, and assuming equal variances, we can use a two-sample t-test. The t-statistic can be calculated using the following formula:

t = (x1 - x2) / (s_p * sqrt(1/n1 + 1/n2))

where:

x1 and x2 are the sample means of the two sheets,

s_p is the pooled standard deviation,

n1 and n2 are the sample sizes.

The pooled standard deviation (s_p) can be calculated using the following formula:

s_p = sqrt(((n1 - 1) * s1^2 + (n2 - 1) * s2^2) / (n1 + n2 - 2))

where:

s1 and s2 are the sample standard deviations.

To calculate the t-statistic, we need the sample means, sample standard deviations, and sample sizes.

Once you provide the specific values for these variables, I can assist you in calculating the t-statistic to 3 decimal places.

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To test the hypothesis that the mean weight of the two sheets is equal (μ1 - μ2) against the alternative that it is not, we can use a paired t-test assuming equal variances. The paired t-test is used when we have paired data or measurements on the same subjects or objects.

The t-statistic for a paired t-test is calculated as follows:

t = (X1 - X2) / (s / √n)

where X1 and X2 are the sample means of the two samples, s is the pooled standard deviation, and n is the number of pairs.

Please provide the sample means, standard deviation, and sample size for each sheet so that we can calculate the t-statistic to 3 decimal places.

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Answer:

4894-

Step-by-step explanation:

dsfghbsvacfvgb VSCDFVRGb vzxVfd xvf cdv

The volume of the cylindrical-shaped mug is 502.4 cm³. The correct answer is A.

The volume of a cylinder can be calculated using the formula V = πr²h, where V is the volume, r is the radius, and h is the height.

Since the diameter of the mug is 8 centimeters, the radius is half of that, or 4 centimeters, and the height of the mug is 10 centimeters. Plugging these values into the formula, we get:

V = π(4 cm)²(10 cm)

V = π(16 cm²)(10 cm)

V = π(160 cm³)

Using 3.14 for π, we get:

V = 3.14(160 cm³)

V = 502.4 cm³

Therefore, the correct answer is A. 502.4 cubic cm.

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Step-by-step explanation:

A few hints:

- Angles exactly opposite each other are congruent (the same). It seems that you already know how to use this.

- The angles of an triangle add up to 180 degrees. You could apply this to #7 and use the above hint to solve for #10.

A straight line is 180 degrees, so a line that separates it into two angles will always add up to 180. you could use this to solve for #8, and use the first hint for #9.

An angle formed by a transversal line and a pair of parallel lines will correspond to each other. Use this to solve #11-18.

I hope this helps!

Answer:

75

this is because ABCD are angles on a quadrilateral

Answer:

Step-by-step explanation:

the diagonal of the parallelogram forms two congruent isosceles triangles, so the angle "A" is equal to the angle "C", so x = 75 °

-----------------------------

the sum of the interior angles is 180° (triangle)

75 + 75 + 30 = 180°

the answer is good

The equation whose graph is parallel to that of line 2x - y = - 1 is →

y = - 2x - 1

The general equation of straight line is -

y = mx + c

Given is an equation of line as → 2x - y = - 1

The equation of the line whose graph will be parallel to that of the graph of line 2x - y = -1, will have same slope as that of given line itself.

2x - y = - 1

y = -2x - 1

m = -2

The equation whose graph is parallel to that of 2x - y = -1 is -

y = - 2x - 1

Therefore, the equation whose graph is parallel to that of line 2x - y = - 1 is → y = - 2x - 1

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Answer:

) Compute the sample mean x and the sample standard deviation s.

Do NOT use a computer. You may only use +, –, ×, ÷, and on a calculator.

Show ALL work.

9

143.1

9

15.5 16.2 16.1 15.8 15.6 16.0 15.8 15.9 16.2 = = = ∑ + + + + + + + +

n

x

x

i

= 15.9.

x x 2 x x − x ( ) 2

x − x

15.5

16.2

16.1

15.8

15.6

16.0

15.8

15.9

16.2

240.25

262.44

259.21

249.64

243.36

256.00

249.64

252.81

262.44

OR

15.5

16.2

Step-by-step explanation:

Answer:

The answer is 0.84.

Step-by-step explanation:

I solved it and got it all correct.

The expected value of the number of marbles Zuri removes from the bag is the sum of the number of red marbles plus the number of blue marbles.

The expected value of the number of marbles Zuri removes from the bag is the sum of the number of red and blue marbles. This is because the expected value of an event is the sum of the probability of each outcome multiplied by the associated outcome. Since Zuri is randomly removing marbles from the bag, one at a time and without replacement, the probability of each outcome (red or blue) is equal. Therefore, the expected value of the number of marbles Zuri removes from the bag is the sum of the number of red marbles plus the number of blue marbles. This is because each marble has an equal chance of being removed and, therefore, each marble has the same expected value.

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A major disadvantage of correlations is that they cannot make a cause-and-effect statement.

Correlations are statistical measures that describe the size and direction of a relationship between variables.

Correlations are expressed as numbers. Correlations establish that relationships exist but do not explain if the change in one variable is caused by the change in another variable's value.

The disadvantages of correlations include:

Thus, a major disadvantage of correlations is that they cannot make a cause-and-effect statement.

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False. The ANOVA F-statistic is defined as the Between Group Variation divided by the Within Group Variation.

In Analysis of Variance (ANOVA), we compare the variation between different groups (the Between Group Variation) to the variation within each group (the Within Group Variation). The F-statistic is the ratio of the Between Group Variation to the Within Group Variation.

The F-statistic is used to test the null hypothesis that the means of the different groups are equal. If the F-statistic is large and the associated p-value is small, we reject the null hypothesis and conclude that there is evidence of a difference between the means of the groups.

On the other hand, if the F-statistic is small and the associated p-value is large, we fail to reject the null hypothesis and conclude that there is not enough evidence to conclude that the means of the groups are different.

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Answer: 2.5

Step-by-step explanation:

3 1.4 lbs also equals 3.25

3 x 0.75 = 2.25

2.25 + 25 = 2.5

Answer:

A) They have the same y intercept and the same rate of change

Step-by-step explanation:

Write the equation for the line passing through the points (2,4) and (12,7)

Slope \(\frac{7-4}{12-2}\) = \(\frac{3}{10}\) = .3

y intercept  (b)

y = mx + b

Use 2 fox x, 4 for y and .3 for m

y=mx + b

4 = .3(2) + b

4 = .6 + b    Subtract .6 from both sides

3.4 = b

The equation is

y = .3x + 3.4

The two equation are identical so the slope and y intercepts are the same.

compare the y-intercept and the rate of change of the following items. Option (d) The rates of change are the same, but the y-intercepts are different. is correct.

for rates,

we will find the slope of I and II

slope = dy/dx = change in y/change in x

for both of them when we compare the slope, it is 0.3.

for y-intercepts.

equation for II should be formed in order to compare with the y-intercept of I which is  3.4.

y-7=0.3(x-12) .................(i)

so, the y-intercept is 7 for II

thus, the y-intercepts of given eq are not equal.

Answer: I'm sorry is this a real question

Given that $OF = 9$ and $OF' = 12,$ where $F$ and $F'$ are the foci of the ellipse, we can determine the lengths of the major and minor axes.

In an ellipse, the sum of the distances from any point on the ellipse to the two foci is constant. This property is expressed by the equation:

$$PF + PF' = 2a,$$

where $P$ is any point on the ellipse and $a$ is the semi-major axis. In our case, $P = O,$ and since $OF = 9$ and $OF' = 12,$ we have:

$$9 + 12 = 2a,$$

$$21 = 2a.$$

Therefore, the semi-major axis $a$ is equal to $\frac{21}{2} = 10.5.$

The distance between the center of the ellipse and each focus is given by $c,$ where $c$ is related to $a$ and the semi-minor axis $b$ by the equation:

$$c = \sqrt{a^2 - b^2}.$$

We can solve for $b$ using the distance to one focus:

$$c = \sqrt{a^2 - b^2},$$

$$c^2 = a^2 - b^2,$$

$$b^2 = a^2 - c^2,$$

$$b = \sqrt{a^2 - c^2}.$$

Substituting the known values:

$$b = \sqrt{10.5^2 - 9^2},$$

$$b = \sqrt{110.25 - 81},$$

$$b = \sqrt{29.25},$$

$$b \approx 5.408.$$

Therefore, the semi-minor axis $b$ is approximately $5.408.$

Finally, we can determine the lengths of the major and minor axes:

The major axis $\overline{AB}$ is twice the semi-major axis, so $\overline{AB} = 2a = 2(10.5) = 21.$

The minor axis $\overline{CD}$ is twice the semi-minor axis, so $\overline{CD} = 2b = 2(5.408) \approx 10.816.$

Therefore, the major axis $\overline{AB}$ is $21$ units long, and the minor axis $\overline{CD}$ is approximately $10.816$ units long.

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Step-by-step explanation:

Y varies directly as cube root of x is written as

y = k³√x

where k is the constant of proportionality

when y = 3

x = 27

We have

\(3 = k \sqrt[3]{27} \)

But ³√27 = 3

That's

3 = 3k

Divide both sides by 3

k = 1

The value of the relationship is

When x = 8

We have

Hope this helps you

Answer:

So S is $30 so that means the equation is $30=L-rL. SO now you have to fine what L and rL is equal to get 30.

Step-by-step explanation:

Xenocentrism is the opposite of ethnocentrism. Xenocentrism is the belief or preference for the culture, values, or products of others over one's own culture.

It stands in contrast to ethnocentrism, which involves the belief in the superiority of one's own culture. While ethnocentrism can lead to cultural bias and the dismissal of other cultures, xenocentrism appreciates and values diversity, recognizing the merits and value in different cultural perspectives and practices.

Xenocentrism involves looking beyond one's own cultural norms and standards and acknowledging the worth of alternative ideas, customs, and products from different cultures. It encourages an open-minded and inclusive approach, promoting intercultural understanding and appreciation. However, it's important to note that extreme xenocentrism, similar to extreme ethnocentrism, can lead to the negation or devaluation of one's own culture.

In summary, xenocentrism represents a mindset that embraces cultural diversity and recognizes the value in cultures other than one's own. It serves as an alternative to ethnocentrism by fostering a more inclusive and open perspective towards different cultural experiences.

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In the long run, the proportion of hours the turtle will be hiding is 1, or 100%.

Since the turtle can only be either eating or hiding at any given hour, we know that h + e = 1.

Write the transition matrix as follows:

A =\(\left[\begin{array}{ccc}1&\frac{1}{2} \\\frac{1}{2}&\frac{1}{2}\end{array}\right]\)

The first row of A represents the probability of transitioning from hiding to hiding or from hiding to eating, while the second row represents the probability of transitioning from eating to hiding or from eating to eating.

Find the eigenvector corresponding to the eigenvalue of 1 for the transition matrix A.

Setting up the equation Ax = λx, where λ = 1, we get:

\(\left[\begin{array}{ccc}1&\frac{1}{2} \\\frac{1}{2}&\frac{1}{2}\end{array}\right] \left[\begin{array}{ccc}h\\e\end{array}\right] = \left[\begin{array}{ccc}h\\e\end{array}\right]\)

This gives us two equations:

h + (1/2)e = h

(1/2)h + (1/2)e = e

Simplifying the first equation, we get:

(1/2)e = 0

This implies that e = 0, which means that the turtle spends no time eating in the long run. Using the fact that h + e = 1, we can conclude that the turtle spends all of its time hiding in the long run.

Therefore, the proportion of hours the turtle spends hiding in the long run is 1, or 100%.

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Answer:

4 (RootIndex 3 StartRoot 6 x squared EndRoot)  = 4\(\sqrt[3]{6x^2}\)

Step-by-step explanation:

Which of the following is a like radical to RootIndex 3 StartRoot 6 x squared EndRoot = \(\sqrt[3]{6x^2}\) ?

1)  x\(\sqrt[3]{6x}\) = \(\sqrt[3]{6x^4}\)

2) 6\(\sqrt[3]{x^2}\) = \(\sqrt[3]{6^3x}\)

3) 4\(\sqrt[3]{6x^2}\)

4) x\(\sqrt[3]{6}\) = \(\sqrt[3]{6x^3}\)

Compared with the given radical, we can see from the given choices only 3rd choice is like radical with \(\sqrt[3]{6x^2}\)

Answer:

c

Step-by-step explanation:

i just did it

Answer: S and T.

Step-by-step explanation:

I watched a video on how to do this just to answer, so it might not be right LOL. But since the angles are the same if you draw them from each other they both show the angles are equal which means the lines are parallel.

Answer:

Question a)

\(9^{3x+4}=27^{4x+3}\)

\(x=-0.166\)

Question b)

\(4^{3x}=2^{x+1}\)

\(x=0.2\)

Step-by-step explanation:

Question a)

Given the expression

\(9^{3x+4}=27^{4x+3}\)

Taking log on both sides

\(log\left(9^{3x+4}\right)=log\left(27^{4x+3}\right)\)

\(\left(3x+4\right)\cdot \left(log\left(9\right)\right)\:=\left(4x+3\right)\cdot \left(log\left(27\right)\right)\)

\(3x+4=\left(\frac{log\left(27\right)}{log\left(9\right)}\right)\cdot \left(4x+3\right)\)

\(3x+4=1.5\times \left(4x+3\right)\)

\(3x+4=6x+4.5\)

\(3x=6x+0.5\)

\(\frac{-3x}{-3}=\frac{0.5}{-3}\)

\(x=-0.166\)

Therefore, the value of x:

\(x=-0.166\)

Question b)

Similarly, we can solve the 'b' expression

Given the expression

\(4^{3x}=2^{x+1}\)

Taking log on both sides

\(log\left(4^{3x}\right)=log\left(2^{x+1}\right)\)

\(3x\cdot \left(log\left(4\right)\right)=\left(x+1\right)\cdot \left(log\left(2\right)\right)\)

\(3x=\left(\frac{log\left(2\right)}{log\left(4\right)}\right)\cdot \left(x+1\right)\)

\(3x=0.5\times \left(x+1\right)\)

\(3x=0.5x+0.5\)

\(2.5x=0.5\)

Divide both sides by 2.5

\(\frac{2.5x}{2.5}=\frac{0.5}{2.5}\)

\(x=0.2\)

Therefore, the value of x = 0.2

Answer:

1.25a+4.4

Step-by-step explanation:

The expression (1.5a + 4.7 + 0.25a - 0.3 - 0.5a) is equivalent to

1.25a + 4.3

We have the given equation -

1.5a + 4.7 + 0.25a - 0.3 - 0.5a

We have the following equation -

1.5a + 4.7 + 0.25a - 0.3 - 0.5a

1.5a + 0.25a - 0.5a + 4.7 - 0.3

1.25a + 4.3

Therefore, the expression (1.5a + 4.7 + 0.25a - 0.3 - 0.5a) is equivalent to

1.25a + 4.3

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The answers to your questions are as follows :

Probability is a branch of mathematics that deals with the degree of occurrence of an event.

1) The situation with a probability closest or equal to 0 is rolling a number: (A) greater than 5.

Because: there is only one number greater than 5 in that list (which is 6)

2) The model which shows the probability of choosing a multiple of 4 is: ( B )  \(\frac{2}{10}\) (2/10)

Because: there are only two multiples of 4 that can be picked from number 1-10

3) The only survey that would not be valid with a sample of seventh-grade classmates is :  Bank that offer the most services.

Because: they are not working and might have little or no idea about banking services.

4) The probability of choosing a red marble, then a white marble if the marbles are replaced is : 7/10.

where the probability of picking a red marble is =  \(\frac{3}{10}\)

The probability of picking a white marble is = \(\frac{4}{10}\)

since the marbles were replaced : \(\frac{3}{10}\) + \(\frac{4}{10}\) = \(\frac{7}{10}\)

5) The probability of spinning the following. P(not 7) = 7/8

The probablity of picking a 7 is = \(\frac{1}{8}\)

The probability of not is = 1 - probability of picking 7

1 - \(\frac{1}{8}\) = \(\frac{7}{8}\)

In conclusion, go the answers related to your questionare  provided above for each question.

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Answer:

24

Step-by-step explanation:

Ok, so we see that we have 6 as a leg of the right triangle and 10 as the hypotenuse.  As we look closer, we can tell that this makes the Pythagorean triple 6, 8, 10.  6, 8, 10 is just the Pythagorean triple 3, 4, 5 but it is multiplied by 2.  So now that we know both the legs of this right triangle, we can use the area of a triangle formula (bh)/2.  6*8=48 and 48/2 = 24 which gives us our answer.