At approximately what value of x do the two lines meet?

Answer:

x= 91/27

Step-by-step explanation:

remove parenthesis, collect like terms, move the terms, calculate, and ive by both sides

Answer:

7x

Step-by-step explanation:

First distribute the -4 with the (-5x+12) which should be 20x-48 and then simplify and it should be 43=13x-48. Then add 48 to both sides which should be 91=13x. Lastly divide 13 on both sides and that should be 7x.  

Answer:

11x - y

Step-by-step explanation:

Answer:

5.33lb of candy

Step-by-step explanation:

First, you'd need to set up a proportion.

4 pounds         x poinds

----------- = -------------

9 dollars         12 dollars  

Then, cross multiply.

  9x = 4(12)

  9x = 48

    x = 48/9

And your answer is x = 5.33!

Hope I helped! ☺

Answer:We are given that 4 lb of candies are bought for $9.00

Therefore, the price of 1 lb of candies is:

9/4=2.25

Now the amount of candies that can bought for $12.00 is:

12/2.25=5.3333

Therefore, 5.3333 lb of candies can be bought for $12.00

Step-by-step explanation:

Answer:

I uploaded a file hosting link for your question!

Here is the link:

bít.ly/botshavenobrains

Step-by-step explanation:

Answer is A

Hope it helped :)

Answer:

x=5, y=8

Step-by-step explanation:

x+y=13

2x-y=2

add these two equations

3x=15

therefore x=5

apply this value in x+y=13

5+y=13

then y=13-5 = 8

Answer:

x= 5 y=8

Step-by-step explanation:

x+ y=13( equation 1)

2x- y=2( equation 2)

From equation 1 we get:

x=13-y( equation 3)

Put equation 3 into equation 2:

2(13-y)- y=2

26-2y-y=2

26-3y=2

-3y=-24

y=8

Then from equation 3

x=5

Answer:

20x² - 2x - 6 cm

Step-by-step explanation:

Find the area by multiplying the length and width

(4x + 2)(5x - 3)

FOIL:

20x² - 2x - 6

So, the area of the rectangle is 20x² -2x - 6

Answer:

cos = adjacent/hypotenuse

3/square root13

now you do square root 13 x3 divided by square root 13^2

= 3square root13/13

hope that answers your question

Statistics is the science of conducting studies to gather, organize, summarize, and figure out the conclusion from the data.

The science of studies in statistics involves below points :

1. Collection of data is a systematic process of gathering information from relevant sources to conclude the research problem. Example: Survey and questionnaire case studies.

2. Organization of data involves arranging the primary or raw data in an understandable and cauterized order. It includes the process of classification, picture and graphic representation and frequency distribution table. Example: organising marks scored by students in different subjects.

3. Summarizing is the method of outlining and providing information regarding our research data, it draws the value of our data.

4. Analysis is another way of statistics involving the science of collecting data and uncovering patterns and trends in it. Example: making of pie charts.

5. Conclusion is the final stage in the science of statistics studies it results in finding the answers to our research questions. Example: a survey on youth and politics, conclusion: 60 % of youth have no interest in politics.

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The complete question is -

What is Statistics? what is its science of studies?

To find the volume of a solid obtained by rotating a region bounded by curves around an axis, we can use the disk or washer method.

Suppose we want to find the volume of a solid obtained by rotating the region bounded by the curves y = f(x), y = g(x), and the lines x = a and x = b around the x-axis.

We can divide the region into vertical slices of width Δx, and rotate each slice around the x-axis to obtain a disk or washer. The volume of each disk or washer can be approximated as the area of the base times the thickness, or π(R² - r²) Δx, where R and r are the outer and inner radii of the disk or washer, respectively.

To find the exact volume, we take the limit as Δx approaches zero and sum up the volumes of all the disks or washers using integration:

V = ∫[a, b] π(R² - r²) dx

where R = f(x) and r = g(x).

Alternatively, if we want to rotate the region around the y-axis, we can divide the region into horizontal slices of width Δy, and rotate each slice around the y-axis to obtain a disk or washer. The volume of each disk or washer can be approximated as π(R² - r²)Δy, where R and r are the outer and inner radii of the disk or washer, respectively.

The exact volume can be found using integration as:

V = ∫[c ,d] π(R² - r²) dy

where R = f(y) and r = g(y), and c and d are the y-coordinates of the endpoints of the region.

In either case, it is important to sketch the region and identify the appropriate radii before setting up the integral.

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Answer:

choose the third choice

Answer:

True

Step-by-step explanation:

Brainliest?

Answer:

I Believe the answer is True

Step-by-step explanation:

Answer: a comparison to 100 is a percent

Step-by-step explanation:

Answer:

x=3

Step-by-step explanation:

I will assume this is a  number line

DE    +    EF     = DF

x+1    +    2x     =  10

3x  + 1 = 10

3x = 9

x = 3

You should have a new column with the data "2019" for each row in your dataset.

To add a column with the data "2019" for each row in a dataset, you can use the following formula in Microsoft Excel:

1. Assuming your dataset starts in cell A1, in a new column (e.g., column D), enter the header "Year" in cell D1.

2. In cell D2, enter the formula "=2019".

3. Select cell D2 and copy it (Ctrl+C).

4. Select the range of cells in column D where you want to add the "2019" value. For example, if you have data in rows 2 to 100, select D2:D100.

5. Paste the formula by right-clicking on the selected range and choosing "Paste Special" from the context menu. In the Paste Special dialog box, select "Values" and click "OK". This will replace the formula with the actual value "2019" in each selected cell.

Now, you should have a new column with the data "2019" for each row in your dataset.

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Answer:true

Step-by-step explanation:

Answer:

  C.  142°

Step-by-step explanation:

You want the angle between vectors u=3i+√3j and v=-2i-5j.

There are a number of ways the angle between the vectors can be found. For example, the dot-product relation can give you the cosine of the angle:

  u•v = |u|·|v|·cos(θ) . . . . . . where θ is the angle of interest

You can find the angles of the vectors individually, and subtract those:

  u = |u|∠α

  v = |v|∠β

  θ = α - β

When the vectors are expressed as complex numbers, the angle between them is the angle of their quotient:

  \(\dfrac{\vec{u}}{\vec{v}}=\dfrac{|\vec{u}|\angle\alpha}{|\vec{v}|\angle\beta}=\dfrac{|\vec{u}|}{|\vec{v}|}\angle(\alpha-\beta)=\dfrac{|\vec{u}|}{|\vec{v}|}\angle\theta\)

This method is used in the calculation shown in the first attachment. The angle between u and v is about 142°.

A graphing program can draw the vectors and measure the angle between them. This is shown in the second attachment.

__

Additional comment

The approach using the quotient of the vectors written as complex numbers is simply computed using a calculator with appropriate complex number functions. There doesn't seem to be any 3D equivalent.

The dot-product relation will work with 3D vectors as well as 2D vectors.

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Answer:

The first one ( $3 + 3 + 3 + 3 = 12, so Sal can afford the gas. )

Step-by-step explanation:

The algorithm for converting a binary value to BCD (Binary-Coded Decimal) is relatively straightforward.

First, we need to isolate each decimal digit in the binary number. We can do this by using modulo 10 operation, which gives us the remainder of dividing the number by 10. This remainder represents the rightmost digit of the number. We then divide the number by 10 using integer division, which removes the rightmost digit from the number. We repeat this process four times to isolate all four digits of the binary number.

Next, we need to convert each decimal digit to its corresponding BCD code. To do this, we can use a lookup table that maps each decimal digit to its BCD code. For example, the digit 0 has a BCD code of 0000, the digit 1 has a BCD code of 0001, and so on. We can use the remainder from the previous step as an index into the lookup table to get the BCD code for that digit.

Finally, we need to combine the BCD codes for all four digits into a single 4-digit BCD value. We can do this by shifting each BCD code into its corresponding nibble in the target register (x11). For example, the BCD code for the first digit should be shifted into the lowest nibble of x11, the BCD code for the second digit should be shifted into the second lowest nibble, and so on.

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.

Answer:

The function is given below as

The exponential function is given below as

By comparing coefficients, we will have

Hence,

the rate will be

Therefore,

The rate is

Step 2:

To figure out the initial population, we will substitute t=0 in the function above

Hence,

The initial population of the culture is

Step 3:

To figure out the number of bacteria at t=7, we will have

Hence,

The number of bacteria at time t=7 will be

Answer:

D

Step-by-step explanation:

There is a linear pair at each vertex.

m<1 + 140 = 180

m<1 = 40

m<2 + 105 = 180

m<2 = 75

m<3 + 75 = 180

m<3 = 105

m<4 + 40 = 180

m<4 = 140

The required measure of the angle measured by using a protractor is 70°

Given situation : A protractor is used on an angle

A ray is passed through this angle

we have to find the measure of the total angle

Let the angle is passed through an angle ∠ABC

and the ray be BD

thus the two angles which will be formed will be

∠ABD and ∠DBC

Now let one of the angles , say angle ∠ABD be 13°

and ∠DBC be 57°

Thus the whole angle would be ∠ABD + ∠DBC = ∠ABC

∠ABC = 57 + 13 = 70°

Thus the required measure of the angle is 70°

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zw in polar form is zw = 24√2(cos(75°) + i*sin(75°)).

z/w in polar form is z/w = (4√2/3)(cos(-15°) + i*sin(-15°)).

1/z in polar form is 1/z = (1/8)(cos(-30°) + i*sin(-30°)).

Now that we have z and w in polar form, we can find the polar forms for the products and reciprocal of these complex numbers.

Product (zw): To multiply two complex numbers in polar form, we multiply their magnitudes and add their arguments. Applying this to z and w, we have: zw = 8(cos(30°) + isin(30°)) * 3√2(cos(45°) + isin(45°))

Multiplying the magnitudes: |zw| = 8 * 3√2 = 24√2

Adding the arguments: θzw = 30° + 45° = 75 degrees

Therefore, zw in polar form is zw = 24√2(cos(75°) + i*sin(75°)).

Division (z/w): To divide two complex numbers in polar form, we divide their magnitudes and subtract their arguments. Applying this to z and w, we have: z/w = 8(cos(30°) + isin(30°)) / 3√2(cos(45°) + isin(45°))

Dividing the magnitudes: |z/w| = 8 / (3√2) = 8 / 3√2 = 8 / (3 * √(2)) = (8 / 3) * (1 / √(2)) = (8 / 3) * (√(2) / 2) = (4√2) / 3

Subtracting the arguments: θz/w = 30° - 45° = -15 degrees

Thus, z/w in polar form is z/w = (4√2/3)(cos(-15°) + i*sin(-15°)).

Reciprocal (1/z): To find the reciprocal of a complex number in polar form, we take the reciprocal of its magnitude and negate its argument. Applying this to z, we have: 1/z = 1 / [8(cos(30°) + i*sin(30°))]

Taking the reciprocal of the magnitude: |1/z| = 1 / 8 = 1/8

Negating the argument: θ1/z = -30°

Hence the 1/z in polar form is 1/z = (1/8)(cos(-30°) + i*sin(-30°)).

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Answer: B and they can play 6 levels

Step-by-step explanation: first solve the mixed fractions

Then solve the factions

The simplified expression that represents the total perimeter of the triangle is 2x^2 + 10x  + 3

The side lengths are given as:

2x^2 + 5x + 3, 2 + 2x and 3x - 2

Add these lengths to determine the perimeter (P)

P = 2x^2 + 5x + 3 + 2 + 2x + 3x - 2

Collect like terms

P = 2x^2 + 5x + 2x + 3x  + 3 + 2 - 2

Evaluate the like terms

P = 2x^2 + 10x  + 3

Hence, the simplified expression that represents the total perimeter of the triangle is 2x^2 + 10x  + 3

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Answer:

$1.35

Step-by-step explanation:

you multiply $9.00 (9) by 15% (.15). Which gives you 1.35.

Answer:

There are 25 inches in the larger dimension.

Step-by-step explanation:

∵ 1 foot = 12 inches

∵ The small dimension after enlargement is 1 foot and 3 inches

→ Change it to inches only

∴ The small dimension = 1(12) + 3 = 12 + 3

∴ The small dimension = 15 inches after enlarged

∵ The small dimension of the photo before enlarged = 3 inches

→ Divide its length after enlarged by its length before enlarged to

   find the scale of the enlargement

∵ 15 ÷ 3 = 5

∴ The scale of enlarged is 5

→ To find the larger dimension after enlarged multiply its length

   before enlarged by 5

∵ The larger dimension before enlarged = 5 inches

∴ The larger dimension after enlarged = 5 × 5

∴ The larger dimension after enlarged = 25 inches

∴ There are 25 inches in the larger dimension.

A player has played 15 games at a local arcade and 10 games at an amusement park, with the belief that her mean score at the arcade is greater than her mean score at the amusement park.

To determine whether the player's belief is supported by the data, we need to compare the mean scores at the arcade and the amusement park. Let's assume the scores for the arcade games are: 10, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 28. And the scores for the amusement park games are: 8, 9, 10, 12, 14, 15, 16, 18, 19, 20.

To find the mean score for each set of games, we sum up the scores and divide by the number of games. For the arcade games, the sum is 334, and the mean score is 334 / 15 = 22.27. For the amusement park games, the sum is 141, and the mean score is 141 / 10 = 14.1.

Comparing the mean scores, we see that the mean score at the arcade (22.27) is indeed greater than the mean score at the amusement park (14.1). Therefore, the player's belief that her mean score at the arcade is greater than her mean score at the amusement park is supported by the given data.

By calculating the mean scores for the games played at the arcade and the amusement park, we can compare the average performance at each location. The mean score is calculated by summing up the scores and dividing by the number of games played.

In this case, the mean score at the arcade (22.27) is higher than the mean score at the amusement park (14.1), suggesting that the player performs better on average at the arcade. This analysis supports the player's belief that her mean score at the arcade is greater than her mean score at the amusement park.

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