Please help me im very depressed and im struggling a lot on my math and i really need some answers
Which number sentence is true?

Answer:

4.58

Step-by-step explanation:

i would make sure im correct but i think this is it.

The volume of the given cylinder with a height of 9.8cm and a diameter of 26.8cm is approximately 5525.42 cm³.

Given diameter of the cylinder = 26.8cm

So, radius = diametre/2 = 26.8cm/2 = 13.4 cm

height of the cylinder = 9.8cm

the formula for finding the volume of the cylinder = \(\pi\)r²h

[here r = radius, h = height and \(\pi\)  ≅ 3.14]

So, the volume of the given cylinder = 3.14 x (13.4)² x (9.8) ≅ 5525.42 cm³.

From the above solution, we can conclude that the volume of the given cylinder which is having the height of 9.8cm and a radius of 13.4cm is approximately 5525.42 cm³.

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Using trend-adjusted exponential smoothing with alpha = 0.1 and beta = 0.2, the forecast for the architectural firm's August income is $94.92 thousand dollars. The mean squared error (MSE) for this forecast is 2.12 \((thousand dollars)^2\).

Trend-adjusted exponential smoothing combines exponential smoothing with a trend adjustment factor. The forecast for a given period is calculated based on the previous forecast and the previous trend value. In this case, the initial forecast for February is given as $85.0 thousand dollars, and the initial trend adjustment is 0.

To calculate the forecast for each month, we use the following formulas:

Level forecast = Previous level forecast + Previous trend adjustment

Trend forecast = Previous trend forecast + Beta * (Current level forecast - Previous level forecast)

Forecast for next period = Level forecast + Trend forecast

Using these formulas, we can calculate the forecasts for each month from February to July. Then, for August, we can apply the trend adjustment formula using the previous level forecast and trend forecast. The resulting forecast for August is $94.92 thousand dollars.

The mean squared error (MSE) is a measure of the accuracy of the forecast. It is calculated by taking the average of the squared differences between the actual income values and the forecasted values. In this case, the MSE for the forecast developed using trend-adjusted exponential smoothing is 2.12 \((thousand dollars)^2\). A lower MSE indicates a better fit between the forecast and the actual data.

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After considering all the given data provided by the question we conclude that the number 18 present in the given equation  is  constant .

The equation for the sunflower's height is h = 18 + 2.5w.
Here, the number 18 shows the height of the sunflower during the time it was planted, so it is the constant term present in the equation and hence it does not relie on the duration of weeks that have passed.
The coefficient of w is 2.5, which represents the rate at which the sunflower grows in height per week.
Therefore, after one week, the sunflower would be 20.5 inches tall (18 + 2.5 x 1), after two weeks it would be 23 inches tall (18 + 2.5 x 2), after four weeks it would be 28 inches tall (18 + 2.5 x 4), and after six weeks it would be 33 inches tall (18 + 2.5 x 6).

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Answer:

20

Step-by-step explanation:

3x+50=6x-10 (vertically opposite angles)

50+10=6x-3x

60=3x

60/3=x

x=20

Answer:

x = 20

Step-by-step explanation:

6x - 10 = 3x + 50       {Vertically opposite angles}

6x        = 3x + 50 + 10     {Combine like terms}

    6x    = 3x + 60        {Subtract 3x from both sides}

6x -3x  = 60

     3x = 60         {Divide both sides by 3}      

        x = 60/3

x = 20

Answer and explanation:

Alright so first you find the lcm of 12 and 8 which is 4. So let's go:

1. 4 into 12 is 3

2. 4 into 8 is 2

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

you're welcome

does this help its x=0, 2/3

Answer: curve= y61

Step-by-step explanation:

Answer:

75 I hope this helped and brainliest please!

Step-by-step explanation:

The equation for surface area for a square pyramid is A=a squared + 2a times the square root of (a squared over 4) + height squared. Since everything is 5 yd, the answer is 75.

1. The values which the given number sentences true are:

a) 11 b) 5 c) 36

2. After substituting the value of  x we get the value for y as :

a) 6 b) 0 c) 7 d) 15

3. The number sentences are :

a) x ₋ y = 25

b) 5 × p = q ÷ 2

c) 2y ₋ 14 = 6

d) 15 × 4 = 4 ₋ (x₊y)

Given in the first bit we need to find the variables:

a) h ₊ 8 = 19

arrange the constants on one side.

h = 19 ₋ 8

h = 11

b) 2p ₋ 6 = 4

arrange the constants on one side.

2p = 4 ₊ 6

2p = 10

p = 10/2

p = 5

c) 1/3 y = 12

cross multiply.

y = 36

Now in the second exercise we are asked to substitute the x value and get the value of y.

a) y = 3x ₊ 2 if x =8

substitute x value in the equation.

y = 3(8) ₊ 2

y = 24 ₊ 2

y = 26

b) y = 4x ₋ 1 if  x = 1/4

y = 4(1/4) ₋ 1

y = 1 ₋ 1

y = 0

c) y = 0.2x ₊ 5 if x = 10

y = 0.2(10) ₊ 5

y = 2 ₊ 5

y = 7

d) y = 10x ₊ 12 if x = 0.3

y = 10(0.3) ₊ 12

y = 3 ₊ 12

y = 15

In the last third bit we need to frame equations for the given word problems.

a) The difference between two numbers is 25.

let the two numbers be x and y.

x ₋ y = 25.

b) The product of 5 and p is equal to quotient of q and 2.

5 × p = q ÷ 2

c) The difference between 14 and 2y is equal to 6.

2y ₋ 14 = 6

d) The product of 15 and 4 is equal to four less than the sum of x and y.

15 × 4 = 4 ₋ (x₊y)

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Its called quantitative variables.

Numerical measures of individuals are including:

These are examples of quantitative variables because their values can be added, subtracted, and mathematically manipulated to provide meaningful results.

The primary numerical measure for qualitative data is called the proportion, and it is expressed as a percentage of the total data values in each category. The most frequent numerical measurements for quantitative data are the mean, median, mode, range, variance, and standard deviation. Other numerical measures include the percentiles and range.

The quantitative variables offer numerical measurements of the people being studied. On the values of a quantitative variable, arithmetic operations such as addition and subtraction can be done, and the resulting meaningful results can be interpreted in a variety of ways.

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Answer:

isn't it 5?

by counting the lines from C to B

from C to B the length is 5 while the length of D to C is 6

Answer:

The answer is d

Step-by-step explanation:

simplyfied into the simpiliest form possible

The statement "The sampling distribution of a sample proportion and the sampling distribution of the difference between two independent sample proportions both follow an approximately normal distribution" is true.

The distribution of sample proportions has a mean value equal to the population proportion, and a standard deviation equal to the square root of the product of (the population proportion times 1 minus the population proportion) divided by the sample size.

The sampling distribution of the difference between two independent sample proportions both follows an approximately normal distribution since if the conditions for the hypothesis test are met, the distribution of the difference in sample proportions follows a normal distribution with mean equal to the difference in population proportions and a standard deviation equal to the square root of the sum of the two sample proportions' variances.

The normal distribution is symmetric and bell-shaped, which means that it is useful for many applications because it is easy to work with and analyze.

Therefore, the statement "The sampling distribution of a sample proportion and the sampling distribution of the difference between two independent sample proportions both follow an approximately normal distribution" is true.

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Answer:

B

Step-by-step explanation:

Slope formula: y2-y1/x2-x1

Let (-7, 2) = x1 and y1

Let (4,6) = x2 and y2

6-2/4-(-7)

4/11

Answer:

Step-by-step explanation:

Choice

Answer:

Can you award me brainest

The curve defined by the parametric equations x = 5 cos(t) and y = 6 sin(t) cos(t) has two tangents at the point (0, 0). The equations of these tangents are y = 0 and x = 0.

To find the tangents at the point (0, 0) on the curve, we need to determine the slope of the curve at that point. The slope of the curve can be found by taking the derivative of y with respect to x using the chain rule:

dy/dx = (dy/dt) / (dx/dt)

Substituting the given parametric equations:

dy/dx = (d/dt)(6 sin(t) cos(t)) / (d/dt)(5 cos(t))

Simplifying, we have:

dy/dx = 6(\(cos^2\)(t) - \(sin^2\)(t)) / (-5 sin(t))

At (0, 0), t = 0. Substituting t = 0 into the equation above, we get:

dy/dx = 6(1 - 0) / (-5 * 0) = -∞

Since the slope is undefined (approaching negative infinity) at (0, 0), the curve has two vertical tangents at that point. The equations of these tangents are x = 0 and y = 0, representing the vertical lines passing through (0, 0).

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Answer:

Down below.

Step-by-step explanation:

Two rays form an angle. In this case, that angle is a 180-degree angle. It's also a line because the rays from point A are endless in either direction.

Answer:

Step-by-step explanation:

1. 1/40 + 1/x

2. 1/32 = 1/40 +1/x

3. $8 per hour

4. about 5.5 hours

5. 1/38 + 1/62 = t/x

6.

1. 16.7

2. 22.2

3. 26.2

4. 29.2

nice pfp

The graph of 3x-2y≤6 is the third graph, for 3x-2y<6 is the first graph, for 3x-2y>6 is the fourth graph and for 3x-2y≥6 is the second graph. The solution has been obtained using concept of linear inequality.

What is linear inequality?

A linear inequality is one that would produce a linear equation if the equals relation were used instead of the inequality. When multiplying or dividing both sides by a negative number in order to solve the inequality, the direction of the inequality is reversed. The entire set of solutions to an inequality is known as the solution set.

We are given for graphs, of which two graphs are dotted and two are simple straight line graphs.

The dotted graphs are drawn for the inequalities having < or >

Whereas the simple straight line graphs are drawn for the inequalities having ≤ or ≥.

Now, to notice the shaded pattern, we will see whether the equations are true for (0,0) or not

1. 3x-2y≤6

⇒ 0≤6

So, the equation is true for the point.

Hence, the third graph represents this equation.

2. 3x-2y<6

⇒ 0<6

So, the equation is true for the point.

Hence, the first graph represents this equation.

3. 3x-2y>6

⇒ 0>6

So, the equation is false for the point.

Hence, the fourth graph represents this equation.

4. 3x-2y≥6

⇒ 0≥6

So, the equation is false for the point.

Hence, the second graph represents this equation.

Hence, the graphs are matched with the inequalities.

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Since, there are multiple questions so, the question answered above is attached below.

Answer:

The probability of number of success = C (n,k)p^kq^(n-k)

Step-by-step explanation:

This is the case of Bernoulli's experiment in which there are n independent trials with X number of success

The probability of number of success = C (n,k)p^kq^(n-k)

Where k = 0,1,2,3...n

To reduce the answer to decimals with four digits, we use both the `format function` and the `round function` in Python. In the given expression س 17 / 2.5 درجة, we need to divide 17 by 2.5 and then reduce it to decimals with four digits. The steps below are used in Python to reduce the answer to decimals with four digits. Step 1: We start by evaluating the expression using Python. For this, we use the division operator `/`. س 17 / 2.5 درجة evaluates to 6.8, which is the division of 17 by 2.5. To assign this value to a variable, we can write the following code: `result = 17 / 2.5`Step 2: We then use the `format function` to reduce the number of decimal places in the result to four. The `format function` is used as follows:'result = "{:.4f}".format(result)`The `:.4f` part in the above code specifies that we want to format the result with four decimal places. Step 3: Finally, we use the `round function` to ensure that the last digit in the result is rounded up if it is greater than or equal to five. The `round function` is used as follows:'result = round(float(result), 4)`The second argument of the `round function` specifies that we want to round the result to four decimal places. The `float` function is used to convert the result from a string to a float data type. Therefore, the answer to the given question "س 17 / 2.5 درجة To reduce the answer to decimals with 4 digits, we use" "Both the format function and the round function".

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Answer: 39 in

Step-by-step explanation:

The probability is approximately 0.9167 or 91.67%.

To find the probability that the sum of two dice numbers does not exceed 10, we need to determine the favorable outcomes (sums less than or equal to 10) and the total possible outcomes when rolling two dice.

There are 36 possible outcomes when rolling two dice because each die has six faces (1, 2, 3, 4, 5, and 6), and the total number of outcomes is obtained by multiplying the number of outcomes for each die (6 * 6 = 36).

Now let's determine the favorable outcomes (sums less than or equal to 10):

When the sum is 2: There is only one combination (1 + 1).

When the sum is 3: There are two combinations (1 + 2 and 2 + 1).

When the sum is 4: There are three combinations (1 + 3, 2 + 2, and 3 + 1).

When the sum is 5: There are four combinations (1 + 4, 2 + 3, 3 + 2, and 4 + 1).

When the sum is 6: There are five combinations (1 + 5, 2 + 4, 3 + 3, 4 + 2, and 5 + 1).

When the sum is 7: There are six combinations (1 + 6, 2 + 5, 3 + 4, 4 + 3, 5 + 2, and 6 + 1).

When the sum is 8: There are five combinations (2 + 6, 3 + 5, 4 + 4, 5 + 3, and 6 + 2).

When the sum is 9: There are four combinations (3 + 6, 4 + 5, 5 + 4, and 6 + 3).

When the sum is 10: There are three combinations (4 + 6, 5 + 5, and 6 + 4).

Adding up the favorable outcomes, we get: 1 + 2 + 3 + 4 + 5 + 6 + 5 + 4 + 3 = 33.

Therefore, the probability that the sum of the two dice numbers does not exceed 10 is given by:

Probability = Favorable outcomes / Total outcomes = 33 / 36 = 11/12 ≈ 0.9167.

So, the probability is approximately 0.9167 or 91.67%.

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Answer:

b and e.

Step-by-step explanation:

You will find this by solving each equation for 15b (get 15b by itself)

Answer:

what i learned was 8 are formed

Step-by-step explanation:

Let x be the number of maximum miles that Tiffany can drive, then we can set the following equation:

Subtracting 18.95 from the above equation we get:

Dividing by 0.17 we get:

Now, since the cost is for each mile, then we have to round to the nearest lowest whole number, therefore, she can drive for 123 miles.

Answer: 123 miles.