6. Use the distributive property to find two expressions
that are equivalent to 7(3x - 4).

1. 4

2.2

3.0,5

IT IS SAYING TO WORK OUT WHAT THAT LINE REPRESENTS

Answer: help me pleaz

Step-by-step explanation:

H0: p1 ≥ p2 (Null hypothesis: Proportion of ADHD-diagnosed students in School A is equal to or greater than in School B)

Null Hypothesis: The proportion of students diagnosed with ADHD in School A is equal to or greater than the proportion of students diagnosed with ADHD in School B.

Symbolically, the null hypothesis can be stated as:

H0: p1 ≥ p2

Where:

H0: Null Hypothesis

p1: Proportion of students diagnosed with ADHD in School A

p2: Proportion of students diagnosed with ADHD in School B

In other words, the null hypothesis assumes that there is no significant difference or that School A may have an equal or higher proportion of students diagnosed with ADHD compared to School B.

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The estimated probability that at least one of the next four fish Roxanne catches will be a perch is 34%

Probability is the likeliness of an event to happen. It has a range of 0 to 1, where 0 indicates uncertainty and 1 indicates certainty.

It is given that

0, 1, and 2 represent trout , 3 and 4 represent bass , 5 represent perch , 6, 7, 8, and 9 represent other fish

From the data it can be observed that

Total number of single digits numbers = 80

No. of Perch , "5 " = 8

Probability of getting a perch in next fish = 8/80 = 0.1

Probability that at least one of the next four fish Roxanne catches will be a perch = 1- P(no perch)

P ( no perch) = 1 - 0.1 = 0.9

for 4 fishes

= 1 - 0.9⁴

= 0.3439

= 34.39%

≈ 34%

Therefore the estimated probability that at least one of the next four fish

Roxanne catches will be a perch is 34%.

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The value of Za/2 to construct a confidence interval with a level of 95% is approximately 1.96.

To construct a confidence interval with a level of 95%, we need to find the critical value Za/2. This value corresponds to the z-score that represents the area under the standard normal distribution curve outside the confidence interval.

The confidence level of 95% indicates that we want to capture the middle 95% of the distribution and leave 5% (2.5% on each tail) in the tails. Therefore, we need to find the z-score that leaves 2.5% in each tail.

To determine the value of Za/2, we can use a standard normal distribution table or statistical software. The value represents the z-score at the critical point, where the area to the right of the z-score is a/2.

For a level of 95%, a is equal to 1 - confidence level = 1 - 0.95 = 0.05. Dividing a by 2, we get a/2 = 0.05 / 2 = 0.025.

Using a standard normal distribution table or statistical software, we find that the z-score corresponding to an area of 0.025 in the right tail is approximately 1.96. Therefore, the critical value Za/2 for a 95% confidence interval is approximately 1.96.

In summary, the value of Za/2 to construct a confidence interval with a level of 95% is approximately 1.96.

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Answer:

100

Step-by-step explanation:

4 dirhams = $1

4x1=4

4x25= 100

Answer:

x = 64.6 degrees

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

cos theta = adjacent side / hypotenuse

cos x = 3/7

Taking the inverse cos of each side

x = cos^-1 ( 3/7)

x = 64.6 degrees

Answer:

0.48 of a mile in 1 minute

Step-by-step explanation:

If Amare runs 1.10 miles in 2.3 minutes, you need to find how much he runs in 1 minute. 2.3 divided by what = 1? 2.3. Divide 1.10 by 2.3 to get 0.47826. You can round this to .48 or even .5, depending on the question. So, Amare runs .48 of a mile in 1 minute.

\( \frac{c}{d} = 3 \)

\(c = 3\)

\(3c + d = 3 \times 3 + 1 = 9 + 1 = 10\)

Answer: 10.

Answer:

10

Step-by-step explanation:

c/d=3

d=1

--------

c/1=3

c=3(1)=3

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

3c+d=3(3)+1=9+1=10

Step-by-step explanation:

Q1

A. x must be 0

B. x can be any number. it because every number times by 0 will be 0

Q2

(2⁸ . 5-⁵ . 19⁰)-² . (5-²/2³)⁴ . 2²⁸ =

2-¹⁶ . 5¹⁰ . 1 . 5-⁸ . 2-¹² . 2²⁸ =

2-¹⁶-¹²+²⁸ . 5¹⁰-⁸ =

2⁰ + 5² = 25

Q3

4.55 x 10¹³ - 1.78 x 10¹² =

45.5 x 10¹² - 1.78 x 10¹² =

43.72 x 10¹²

4,37 x 10¹³ kg

Q4

A. 3.9 x 10³³ ergs/s x 2.45 x 10⁵ s = 9.555 x 10³⁸

or in scientific we can write 9.56 x 10³⁸ ergs

B. 7.4 x 10-³ mm. Because the blood cell is a tiny part in.our body. it's impossible to have a cell blood of 7.4 x 10³ mm or 7.4 meters in diameter

Answer:

150

Step-by-step explanation:

One serving need:

\(\frac{3}{2}\) apples, \(\frac{1}{3}\) banana, \(\frac{1}{5}\) mango, 5 raspberries

without having any fruit left over means:

all the fruit needed are integer

so we should find how many serves will cause the fruit needed are integer.

\(\frac{3}{2}=\frac{3\times3\times5}{2\times3\times5}=\frac{45}{30}\)

\(\frac{1}{3}=\frac{1\times2\times5}{3\times2\times5}=\frac{10}{30}\)

\(\frac{1}{5}=\frac{1\times3\times2}{5\times3\times2}=\frac{6}{30}\)

⇒ 30 serving need fruit 45 apple, 10 banana, 6 mango, and the raspberries need:

\(5\times30=150\)

I hope this helps you

:)

The distance along the unit circle between any two successive 8th roots of 1 is c) π/4.

To find the distance along the unit circle between any two successive 8th roots of 1, we can consider the concept of angular displacement.

Each 8th root of 1 represents a point on the unit circle that is evenly spaced by an angle of 2π/8 = π/4 radians.

Starting from the point corresponding to 1 on the unit circle, we can move π/4 radians to reach the first 8th root of 1. Moving π/4 radians further will bring us to the second 8th root of 1, and so on.

Since we are moving by π/4 radians for each successive 8th root of 1, the distance between any two successive 8th roots of 1 is π/4 radians.

Therefore, the correct answer is option c. π/4.

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We employ the following equation to get the normal monthly cost:

4m - 8 = 64

Regular monthly expenses amount to $18.

Irma paid for her cats' subscription in advance for a 4-month period.

She saved $8 overall when she utilized a one-time discount.

Irma totaled $64 in payment.

We must identify the equation that can be utilized to calculate m, the average monthly cost.

Let's use m to symbolize the normal monthly expenditure. She signed up for a subscription that would last for four months, thus the full price without the voucher is 4m.

When the coupon is used, the final price is (4m - $8), since she was given a $8 discount.

Irma paid a total of $64 according to the problem, thus we can create the following equation:

4m - $8 = $64

We must now solve for m in order to determine it. Isolating 4m on one side of the equation will be our first step.

4m = $64 + $8

4m = $72

Finally, divide both sides by 4 to solve for m:

m = $72 / 4

m = $18

So, the regular cost per month, m, is $18.

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Answer:

8 hours

Step-by-step explanation:

2 cars will be $400 since 2x200=400

500-400=120

He made $120 from hours alone so now we divide by 15

120/15=8

He worked 8 hours

Hopes this helps please mark brainliest

Answer:

13

Step-by-step explanation:

144 = pie radio square

144 divided by pie = 45.83662361

45.83662361 square root = 6.770275003

6.770275003 multiply by 2 =  13.54055001

13.54055001 = diameter

Answer:

200x ≠2(12x.9)

Step-by-step explanation:

Hope it helps

The system of equations by elimination. 6x − 12y = 24, −x − 6y = 4

y = -1, x = 2

The system of equations by elimination. −4y − 11x = 36, −10x − 10y = 20​

x = -4, y = 2

Given:

6x − 12y = 24....(1)

−x − 6y = 4....(2)

Multiple by 6 in equation (2)

−6x − 36y = 24...(3)

Add equation (2) from (1).

6x − 12y + (−6x − 36y) = 24 + 24

6x − 12y - 6x - 36y = 48

-48y = 48

y = -1, x = 2

−4y − 11x = 36........(1)

−10x − 10y = 20​.......(2)

Multiple by 10 in equation (1) & multiple by 4 in equation (2)

−40y − 110x = 360.........(3)

−40x − 40y = 80...........(4)

Subtract equation (3) from equation (4)

−40x − 40y - (−40y − 110x ) = 80 - 360

-40x + 110x = -280

70x = 280

x = -4, y = 2

Therefore, 6x − 12y = 24, −x − 6y = 4 by elimination y = -1, x = 2 and −4y − 11x = 36, −10x − 10y = 20​ by elimination x = -4, y = 2

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Answer:

y = x + 3

Step-by-step explanation:

Parallel: x - y = 5 -> y = x - 5

Take the slope from Parallel. m = 1

Point (-5,-2) = (x_0, y_0) ,  m = 1

Point-Slope Form: \((y - y_0) = m * (x - x_0)\)

(y - (-2)) = 1 * (x - (-5))

y + 2 = 1x + 5

y = x + 3

To find a positive number such that the sum of and is as small as possible, we need to use optimization. This problem requires optimization over a closed interval. The given problem is as follows, Let x be a positive number. Find a positive number such that the sum of and is as small as possible.

To find a positive number such that the sum of and is as small as possible, we need to use optimization. This problem requires optimization over a closed interval. The given problem is as follows, Let x be a positive number. Find a positive number such that the sum of and is as small as possible. So, we need to minimize the sum of and . Now, let's use calculus to find the minimum value of the sum.To find the minimum value, we have to find the derivative of the sum of and , i.e. f(x) with respect to x, which is given by f '(x) as shown below:

f '(x) = 1/x^2 - 1/(1-x)^2

We can see that this function is defined on the closed interval [0, 1]. The reason why we are using the closed interval is that x is a positive number, and both endpoints are included to ensure that we cover all positive numbers. Therefore, the problem requires optimization over a closed interval. This means that the minimum value exists and is achieved either at one of the endpoints of the interval or at a critical point in the interior of the interval.

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there are 4,200 possible distributions of the 10 different types of cookies among Anthony, Misha, and Lizard, considering the given conditions.

To determine the number of possible distributions of the 10 different types of cookies among Anthony, Misha, and Lizard, we can use combinatorial analysis.

First, let's consider the distribution of 3 cookies to Anthony. Since there are 10 cookies to choose from, the number of ways to select 3 cookies for Anthony is given by the combination formula:

C(10, 3) = 10! / (3! * (10 - 3)!) = 10! / (3! * 7!) = 10 * 9 * 8 / (3 * 2 * 1) = 120

Next, we consider the distribution of 3 cookies to Misha. Since there are 7 remaining cookies after Anthony's selection, the number of ways to select 3 cookies for Misha is:

C(7, 3) = 7! / (3! * (7 - 3)!) = 7! / (3! * 4!) = 7 * 6 * 5 / (3 * 2 * 1) = 35

Finally, the remaining 4 cookies are automatically assigned to Lizard.

To find the total number of possible distributions, we multiply the number of ways to distribute the cookies to Anthony, Misha, and Lizard:

Total number of possible distributions = 120 * 35 = 4,200

Therefore, there are 4,200 possible distributions of the 10 different types of cookies among Anthony, Misha, and Lizard, considering the given conditions.

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Answer: second and third from the top right

Step-by-step explanation: 1:2 and 1 to 2 are the same thing, and are ratios. The rest of the answers have nothing to do with ratios.

Answer:

Frequently, we know the new amount and the percent change and need to know the original amount. We found that a $600 TV on sale for 30% off, cost $420 on sale. We might think, that to find the original cost of the TV that has a sale price of $420 after a sale of 30% off, we could just take 30% of the $420 cost and add it back to the $420 to find the original cost.

30% of $420 is 0.30($420) = $126 and $420 + $126 = $546.

Or, 130% of $420 is 1.3($420) = $546.

Notice that this is not the $600 original list price with which we started.

Step-by-step explanation:

Value of r is different for every series

let

a , b , c , d ..... be geometric series then

r = b/a or d/c and so on

where r is common ratio

Step-by-step explanation:

well, that's the graph. I hope it helps.

x can be any number, just substitute the value of x chosen into the linear function and get the corresponding p(x) value

like, say x=2, p(x)=4(2)=8. locate the points (2,8) on the graph paper and mark them. continue to do this for more values of x.

Answer:

3x+13

Step-by-step explanation:

=9+(3x+4)

=9+3x+4

=3x+13

Plotting the data on a graph can help you identify the outliers or points that don't fit the pattern.

The dataset, you can use it to identify the points that don't fit the pattern.

The points that don't fit the pattern in a dataset.

The points that don't fit the pattern in a dataset, you can use several methods such as:

Visualization:

Plotting the data on a graph can help you identify the outliers or points that don't fit the pattern.

You can use various graph types such as scatter plots, line graphs, box plots, etc., to visualize the data.

Statistical methods:

You can use statistical methods such as standard deviation, z-score, or regression analysis to identify the outliers or points that don't fit the pattern.

Domain knowledge:

If you have domain knowledge about the dataset, you can use it to identify the points that don't fit the pattern.

If you know that a particular event occurred during a specific period, you can use it to explain the anomaly in the data.

The points that don't fit the pattern, you can investigate why they don't fit the pattern.

It could be due to measurement errors, data entry errors, or a genuine anomaly in the data.

Understanding why certain data points don't fit the pattern can provide insights into the data and improve the accuracy of the analysis.

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The type of sample that was taken in this example is:

stratified random sample.

A stratified random sample is a type of probability sampling technique in which the population is divided into different subgroups (strata) based on certain characteristics and a sample is taken from each of the strata.

In this example, the population is divided into ten groups based on departments and a sample of 50 randomly selected employees is taken from each group. This ensures that the sample is representative of the entire population, as it is drawn from all of the different departments.

A stratified random sample is beneficial in that it allows researchers to ensure that their sample is representative of the whole population.

By taking a sample from each of the different strata, the researcher is able to account for any differences between the strata, and make sure that the sample accurately reflects the population as a whole.

This type of sampling technique is often used when it is important to ensure that the sample is representative of the population, as is the case with the example provided.

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Answer:

1/4

Step-by-step explanation:

First, add up the marbles:

2 + 9 + 7  = 18

Multiply by 2 because you pick two:

18 × 2 = 36

Simplify:

9/36 = 3/12 = 1/4

Hope this helped.

The volume of a cone can be calculated using the formula V = (1/3)πr²h.

To find the volume of a cone, we can use the formula V = (1/3)πr²h, where V represents the volume, π is a mathematical constant approximately equal to 3.14159, r is the radius of the base of the cone, and h is the height of the cone.

The formula is derived from the fact that a cone can be thought of as a pyramid with a circular base, and the volume of a pyramid is given by the formula V = (1/3)Bh, where B is the area of the base and h is the height.

To calculate the volume of a cone, we first need to know the values of the radius and height. The radius is the distance from the center of the base to any point on the edge, and the height is the perpendicular distance from the apex (top) of the cone to the base.

Once we have these values, we can substitute them into the formula V = (1/3)πr²h and calculate the volume. It's important to ensure that the radius and height are in the same units (e.g., centimeters or inches) before performing the calculation.

By using this formula, we can find the volume of cones of various sizes and shapes. The volume represents the amount of space occupied by the cone, and it is typically measured in cubic units (e.g., cubic centimeters or cubic inches).

Calculating the volume of a cone is useful in various applications, such as engineering, architecture, and mathematics.

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Answer:

\(x = 8\)

Step-by-step solution:

2D dimensions give us this equation when it comes to parallelograms like these:

\( \frac{area}{height} = side\)

In this case, x is side. So now you do 104/13=x, so x=8.