9. If Yi Hao gives $3 to Vani, Vani will have twice as
much as Yi Hao. If Vani gives $5 to Yi Hao, Yi Hao
will have twice as much as Vani. How much does
each of them have?

The predicted GPA of the student who sleeps for 2.5 hours per day is 2.27; option D.

The GPA of a student refers to the grade point average of the student which is the average of the student's grade points in his or her courses.

The predicted GPA of the student who sleeps for 2.5 hours per day is obtained from the scatter plot given below:

The equation for the least squares regression line is y = 0.375x + 1.33

x = 2.5

y = 0.375 * 2.5 + 1.33

y = 2.27

In conclusion,  the predicted GPA for the student is obtained from the scatter plot.

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Answer:

2.27

Step-by-step explanation:

Got it right on the test.

Answer:

b

Step-by-step explanation:

that th only one with 7 rows

Answer:

The correct asnwer is A. not B.

Step-by-step explanation:

A. 8 + 15 = 119; r = 13 rows.

Answer:  the answer is 90N

Answer:

90 N

Step-by-step explanation:

Mass of ball = 0.45 kg

Change in velocity = 20.0 m/s

Time = 0.10 seconds

Force required for change =?

Since force refers to the change in momentum per unit time, hence

Force = Momentum / Time

i.e Force = Mass x (change in velocity / time)

Force = 0.45kg x (20.0m/s /0.10second)

= 0.45kg x (200 m/s^2)

= 90N

Answer: Hey man, go with your guess, you might be wrong you might be correct.

Step-by-step explanation: But I wouldn't pick or because if you're saying or, you're basically asking the question to the original question so I would pick one of the and's

Answer:

b < -7 or b > 7

Step-by-step explanation:

b is surrounded by absolute value bars, which means that whether the value of b is negative or positive, the bars will make it positive. |b| is said to be greater than 7, so the value of b must be:

less than -7 (it can be -8, -9, -10, ...) because the absolute value bars will make it positive.

&

greater than 7 (it can be 8, 9, 10) because it will stay positive anyway.

Therefore, the second answer choice is correct.

I hope this helped! :)

Answer:

(3,3)

Step-by-step explanation:

8--7=15

15/3 = 5

8-5=3

ordered pair at x=3 is (3,3)

Because the angles on the first quadrant of the bottom horizontal line are equal, we conclude that the two parallel lines are FM and GB,

We know that two lines are parallel if when intersected by the same line, the two give the same angles.

In the image, we can see only one pair of equal angles, which are the two ones represented by a red quarter circle.

Both of these angles are on line MB, this means that the two parallel lines are the ones that intersect MB (in this case are the two vertical lines).

Then we can conclude that the two parallel lines are FM and GB.

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Answer:

8o88uiuuzjjiuuuoooooöoooo7nhuj

Answer:To prove the relationship about the length of a midsegment, I can use the properties of parallel lines and transversals. If I draw at least two midsegments, I see that they form congruent triangles within the original triangle, ∆ABC. I can prove the congruence of these triangles using triangle congruence criterion, and then use properties of congruent triangles and the Transitive Property to show that the length of the midsegment is half the length of the side it is parallel to.

Step-by-step explanation:

If the equation has infinitely many solutions for x, the value of b that results in infinitely many solutions for x is b = 5/2.

To determine the value of b in the equation a(x + b) = 4x + 10, we can analyze the conditions that would result in infinitely many solutions for x.

First, let's simplify the equation:

a(x + b) = 4x + 10

Expanding the left side of the equation

ax + ab = 4x + 10

Now, let's rearrange the equation to isolate x:

ax - 4x = 10 - ab

Factor out x on the left side:

x(a - 4) = 10 - ab

For the equation to have infinitely many solutions, the coefficient of x (a - 4) must be zero, because any value of x would satisfy the equation.

Therefore, we have:

a - 4 = 0

Solving for a:

a = 4

Substituting the value of a into the equation:

4 - 4 = 0

0 = 0

The equation holds true, indicating that a = 4 satisfies the condition for infinitely many solutions. Now, we can find the value of b.

Substituting a = 4 into the original equation:

4(x + b) = 4x + 10

Expanding:

4x + 4b = 4x + 10

Since the x terms cancel out, we are left with:

4b = 10

Dividing both sides by 4:

b = 10/4

Simplifying:

b = 5/2

Therefore, the value of b that results in infinitely many solutions for x is b = 5/2.

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Answer: 6.

Step-by-step explanation:

Since it starts with 2 kilometers in 3 minutes add 3 more minutes that would but six then double the kilometers to 4 then add another 3 minutes which would but 9 where it stops and add another 2 in the kilometers then i would be 6 .

step by step:

1. 3 minutes and 2 km

2. add 3 more (6) and double the kilometers 2 times(4)

3. add 3 more (9) and add another 2 to the km (9)

Answer:

\(h=\frac{f}{4} -2g\)

Step-by-step explanation:

\(\mathrm{Isolate\: the \:variable \:by\: dividing \:each\: side \:by \:factors \:that \:don't contain \:the \:variable.}\)

\(f=8g + 4h\)

\(h=\frac{f}{4} -2g\)

When choosing cereals at Supermarket Eats, it is important to read the nutrition labels and choose cereals that are lower in added sugars and higher in fiber.

What is Algebraic expression ?

Algebraic expression can be defined as combination of variables and constants

Based on general nutrition guidelines, it is recommended to choose cereals that are lower in added sugars and higher in fiber.

If the cereals at Supermarket Eats have nutrition labels, it is important to read them carefully to determine the sugar content per serving size. According to the American Heart Association, it is recommended that men limit their intake of added sugars to no more than 9 teaspoons per day, and women limit their intake to no more than 6 teaspoons per day. Choosing cereals that have less than 5 grams of added sugars per serving is a good rule of thumb.

In terms of fiber content, it is recommended to choose cereals that have at least 3 grams of fiber per serving. This will help to keep you feeling full and satisfied, and promote healthy digestion.

Therefore, When choosing cereals at Supermarket Eats, it is important to read the nutrition labels and choose cereals that are lower in added sugars and higher in fiber.

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Answer:

The equation is not true. It is actually c=30

Step-by-step explanation:

First you have to divide amount of money she's selling the candy bars for which is $2.50.

If her profit was $75, you want to know how much bars she sold, you will have to divide the amount of money she's selling the candy bars for and the amount she's earning which is $75 divided by $2.50 which is 30.

So c= 30

Answer: The slope of a line in the form y = mx + b can be found by taking the coefficient of x, which is m. In this equation, the slope is not in that form, so we need to isolate y and put it in that form.

Starting with the equation:

3x - 1/2y = 5x + 4

We'll isolate y by subtracting 3x from both sides:

-1/2y = 2x + 4

And then multiply both sides by -2 to solve for y:

y = -4x - 8

So the slope of the line is -4.

Step-by-step explanation:

Answer:

3:5

225 overhere is 3

225/3=75

4 x 75=300

300 non-athletes

Step-by-step explanation:

True. Empirical research involves using observation and experience to gather data and test hypotheses. This process is primarily logical, as it involves reasoning and making sense of the data. While mathematical tools may be used in some aspects of empirical research, they are not the foundation of the process.

True. Empirical research is primarily a logical operation rather than a mathematical one. Empirical research involves observation and gathering of data through direct experience, experiments, or measurements and hypotheses, which requires logical reasoning and analysis to draw conclusions. While mathematical operations and calculations can be a part of the empirical research process, they are not the main focus. The primary focus is on using logic to interpret the collected data and determine the validity of the results.

By quantifying the evidence or understanding the evidence in a qualitative way, researchers can answer empirical questions that need to be articulated and answered with the data collected (often called data). Research designs vary by field and research question. Many researchers, especially in the social sciences and education, have provided good and varied observation models to better answer questions that cannot be studied in the laboratory.

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Answer:

$57.84

Step-by-step explanation:

Balloons needed = 168

Cost of 36 balloons per pack = $11.88

Cost of 12 balloons per pack = $5.16

cost per balloon

36 per pack = $11.88 / 36

= $0.33

12 per pack = $5.16 / 12

= $0.43

In order to minimize cost, she should buy as many packs of 36 per pack balloon

36 per pack × 1 pack = 36

36 per pack × 2 packs = 72

36 per pack × 3 packs = 108

36 per pack × 4 packs = 144

36 per pack × 5 packs = 180

The required number of balloons is 168

So, the number of possible 36 packs to buy is 4, that is, 144 balloons

Balloons remaining = 168 - 144

= 24

Possible packs of 12 balloons per pack possible is

12 per pack × 1 pack = 12

12 per pack × 2 packs = 24

Therefore, Megan needs to buy 4 packs of 36 balloons per pack and 2 packs of 12 balloons per pack

Cost of 4 packs of 36 balloons per pack = 4 × $11.88

= $47.52

Cost of 2 packs of 12 balloons per pack = 2 × $5.16

= $10.32

Total cost = $47.52 + $10.32

= $57.84

Answer:

x = 0.25

Step-by-step explanation:

If y varies inversely with x, then:

\(y \propto \dfrac{1}{x} \implies y=\dfrac{k}{x} \quad \textsf{(for some constant k)}\)

Given:

Substitute the given values into the found equation and solve for k:

\(\implies 1.6=\dfrac{k}{0.5}\)

\(\implies k=1.6(0.5)\)

\(\implies k=0.8\)

Therefore:

\(y=\dfrac{0.8}{x}\)

To find the value of x when y = 3.2, substitute y = 3.2 into the found equation and solve for x:

\(\implies 3.2=\dfrac{0.8}{x}\)

\(\implies x=\dfrac{0.8}{3.2}\)

\(\implies x=0.25\)

Answer:

28 g. ................

Therefore, there are 81,920 different pizzas that this parlor offers.

Since there are five different sizes of pizza, a customer can choose any one of the five sizes. For each size, the customer can choose to have any combination of the 14 toppings, or no toppings at all. This means that for each size of pizza, there are $2^{14}$ different possible topping combinations, including the option of having no toppings. So the total number of different pizzas that the parlor offers is:

=5*2¹⁴

=5*16,384

=81,920

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The two points of intersection are approximately (-2.56155, -7.3693) and (1.56155, 17.3693)

==========================================================

Explanation:

Apply substitution and get everything to one side

\(y = 6x+8\\\\x^2+7x+4 = 6x+8\\\\x^2+7x+4-6x-8 = 0\\\\x^2+x-4 = 0\\\\\)

Now apply the quadratic formula with a = 1, b = 1, c = -4

\(x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x = \frac{-1\pm\sqrt{(1)^2-4(1)(-4)}}{2(1)}\\\\x = \frac{-1\pm\sqrt{1+16}}{2}\\\\x = \frac{-1\pm\sqrt{17}}{2}\\\\x = \frac{-1+\sqrt{17}}{2} \ \text{ or } \ x = \frac{-1-\sqrt{17}}{2}\\\\x \approx 1.56155\ \text{ or } \ x \approx -2.56155\\\\\)

Each approximate x value is then plugged into either original equation to find its corresponding paired y value.

Let's plug the first x value found.

\(y = 6x+8\\\\y \approx 6(1.56155)+8\\\\y \approx 17.3693\\\\\)

Therefore \((x,y) \approx (1.56155, 17.3693)\) is one approximate point of intersection.

Repeat for the other x value

\(y = 6x+8\\\\y = 6(-2.56155)+8\\\\y = -7.3693\\\\\)

The other point of intersection is roughly located at \((x,y) \approx (-2.56155, -7.3693)\)

We do not have enough evidence to conclude that the true mean melting point differs from 95 at a significance level of 0.01.

To determine if the true mean melting point differs from 95, we can use a one-sample t-test with a significance level of 0.01.

The null hypothesis is that the true mean melting point is equal to 95, and the alternative hypothesis is that the true mean melting point is different from 95.

We can calculate the t-statistic using the formula:

t = (sample mean - hypothesized mean) / (sample standard deviation / sqrt(sample size))

where sample size is 16, sample mean is 94.32, hypothesized mean is 95, and sample standard deviation is the same as the population standard deviation of 1.20.

Plugging in these values, we get:

\(t = (94.32 - 95) / (1.20 / \sqrt{(16)} ) = -2.6667\)

Using a t-distribution table with 15 degrees of freedom (n-1=16-1), and a two-tailed test at a significance level of 0.01, the critical t-value is ±2.947.

Since our calculated t-value of -2.6667 falls within the acceptance region (-2.947 < -2.6667 < 2.947), we fail to reject the null hypothesis.

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By answering the given question, we may state that Therefore, equation

8/15 ÷ 2/5 = 4/3.

Using the equals symbol (=) to indicate equivalence, a math equation links two statements. Algebraic equations prove the equality of two mathematical expressions by a mathematical assertion. The equal sign, for example, provides a gap between the numbers 3x + 5 and 14 in the equation 3x + 5 = 14. You can use a mathematical formula to understand the connection between the two phrases that are written on opposite sides of a letter. Most of the time, the logo and the particular software match. e.g., 2x - 4 = 2 is an example.

divide two fractions, we multiply the first fraction by the reciprocal of the second fraction.

8/15 ÷ 2/5

is the same as

8/15 x 5/2

Now we can simplify by canceling common factors:

= 2*(2/3)

= 4/3

Therefore,

8/15 ÷ 2/5 = 4/3.

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Answer:

Yes

Step-by-step explanation:

Given expression: 3x+9

Take 3 outside from the expression, we get,

= 3(x+3), which is called the equivalent expression

Answer:

No

Step-by-step

We have to multiply the 4 by both the a and the 3 since there a parenthesis around them. This would of course be distributive property. Since you don't know what a is, it would just be 4a and since we can multiply 4 and 3 that would be 12. So, 4(a - 3) is equivalent to 4a - 12.

Answer:

I don't have the options but I know parallel lines will never touch, they have the same slope, and the distance between the lines never changes

to get the equation of any straight line all we need is two points from it, let's use those ones in the picture.

\((\stackrel{x_1}{0}~,~\stackrel{y_1}{1})\qquad (\stackrel{x_2}{3}~,~\stackrel{y_2}{3}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{3}-\stackrel{y1}{1}}}{\underset{run} {\underset{x_2}{3}-\underset{x_1}{0}}}\implies \cfrac{2}{3}\implies \cfrac{2}{3} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{1}=\stackrel{m}{\cfrac{2}{3}}(x-\stackrel{x_1}{0})\implies y=\cfrac{2}{3}x+1\)

On the z-table with a 90% confidence interval, the value 1.645 is called the critical value. The critical value is used to determine the boundary values for the confidence interval.  Correct option is A.

In a confidence interval, we use sample data to estimate the true population parameter with a certain degree of certainty or confidence. The critical value is determined based on the desired confidence level and the degrees of freedom (sample size - 1) of the distribution.

For example, if we want a 90% confidence interval, we use the z-table to find the critical value that corresponds to a probability of 0.05 in the tail of the distribution. The critical value represents the number of standard errors that correspond to the probability in the tail of the distribution.

Once we have determined the critical value, we can use it to find the margin of error for the confidence interval, which represents the range of values within which the true population parameter is likely to lie. The margin of error is calculated by multiplying the critical value by the standard error of the sample statistic.

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Complete question is:

On the z table with a 90% confidence interval, what is 1.645 called? group of answer choices

a. critical value

b. confidence interval

c. margin of error point

d. estimate

The decision and outcome that represents a Type I error in this scenario is if the prisoner is released and kills a family of five in cold blood within 48 hours. A Type I error occurs when the null hypothesis is rejected even though it is actually true. In this case, if the parole board releases the prisoner based on the hypothesis that they have been rehabilitated but in reality, they have not been rehabilitated, it would result in a Type I error. The prisoner's release would lead to a tragic outcome, which could have been avoided if the null hypothesis had not been rejected.

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