1. Use the following to answer the below questions: the sum of 2 times a number and 5 is 13
a. Translate the above phrase into an algebraic equation. (5 points)

Answer: 1.2%

Step-by-step explanation:

The statement that best proves that <XWY ≅ <ZYW is that two parallel lines are cut by a transversal, then the alternate interior angles are congruent

To determine the correct statement, we need to know the properties of a parallelogram.

These properties includes;

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A rhombus with MK = 24 m, JL = 20, ∠MJL = 50°. So, NK = 24 m, NL = 24.8 m, ML = 24.8 m, and JM = 20 m.

We need the information about the measurements or a description of the missing measures in the rhombus. We can make it MK = 24 m, JL = 20, ∠MJL = 50° for example. Since it's a rhombus, all sides are equal in length. Therefore, NK = MK = 24 m, JM = JL = 20 m, and ML = NL.

To find ML (or NL), we can use the Law of Cosines on the triangle MJL. In this case,

ML² = JM² + JL² - 2(JM)(JL)cos(∠MJL):

ML² = 20² + 20² - 2(20)(20)cos(50°)

ML² = 400 + 400 - 800cos(50°)

ML² ≈ 617.4

Taking the square root of both sides, we get ML ≈ √617.4 ≈ 24.8 m.

So, NK = 24 m, NL = 24.8 m, ML = 24.8 m, and JM = 20 m.

The complete question is The quadrilateral below is a rhombus. Given MK = 24 m, JL = 20, ∠MJL = 50°. Find NK, NL, ML, and JM. Any decimal answers should be rounded to the nearest tenth.

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Answer:

i dont even know lol

Step-by-step explanation:

The perimeter of the rectangle with length 8x - 1 and width 10x + 3 is 20x + 6

What is perimeter of the rectangle?

The perimeter of the rectangle with length 8x - 1 and width 10x + 3 is 20x+ 6

The formula for calculating the perimeter of a rectangle is expressed as:

P = 2( l + w)

Given the following parameters

length l = 8x - 1

width w = 2x + 4

Substitute the expressions for the length and width into the formula;

P = 2(8x - 1 + 2x + 4)

P = 2(10x + 3)

Distribute 2 over each term in the parenthesis

P = 2(10x) + 2(3)

P = 20x + 6

Hence the perimeter of the rectangle with length 8x - 1 and width 10x + 3 is 20x + 6.

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The complete question is -

The perimeter formula for a rectangle is 2l + 2w, where l is the length and w is the width. Complete the steps to find an expression that represents the perimeter of the rectangle. Substitute the expressions for length and width into the formula 2l + 2w. Distribute 2 to each term in the parentheses. Combine like terms. inches

Answer:

139.3 m²

Step-by-step explanation:

The figure is composed of a square and a semi circle.

area of square = 10² = 100 m²

area of semi circle = 0.5πr² = 0.5π × 5² = 0.5π × 25 = 12.5π ≈ 39.3 m²

Total area = 100 + 39.3 = 139.3 m²

Answer:

Correct option: E

Step-by-step explanation:

The group must have 1 man and 1 woman.

So, for the woman slot, we have 4 possible choices, because we have 4 women and 1 slot to occupy.

For the man slot, we have 2 possible choices, because we have 2 men and 1 slot to occupy.

So the number of different groups we can make is the product of the number of possibilities for each slot:

Number of groups = 4 * 2 = 8

Correct option: E

The mean of the given data set is 98.70

To find the mean of the given data set, we need to sum up all the values and then divide the sum by the total number of values.

Sum of the values = 23.4 + 35.6 + 73.1 + 58.0 + 18 + 723.4 + 35.6 + 73.1 + 58.0 + 18.7 + 33.8 + 33.8 = 1184.5

Total number of values = 12

Mean = Sum of values / Total number of values = 1184.5 / 12 =98.708

To round the answer to the nearest hundredth, we look at the digit in the third decimal place, which is 3. Since this digit is less than 5, we round down the second decimal place, giving us the final answer of:

Rounding to the nearest hundredth, we get the mean as 98.708

Therefore, the mean of the given data set is 98.70

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Answer:

Area of the 2 circles

= 2 pi r square root

= 2 x 3,14 x 21 x 21

=6,28 x 441

=2769.48inches square

Area of the rectangle

= L x h

= where is the other number bc then u cant solve it

Step-by-step explanation:

Answer:

is there a pic to go along? i need more to this..

Probability that x greater than or equal to 5 is 0.6 i.e., Probability that x ≥ 5 = 0.6

The probability distribution for a random variable x is given in the table.

x                |  -10       -5       0       5      10    15     20

probability | 0.20   0.15   0.05   0.1  0.25  0.1   0.15

If a random variable x has values x₁, x₂, .. ,xₙ with their corresponding probabilities given for each of them P(xₐ), then probability that x ≥ xₐ, for some a = 1, 2, .. , n is,

        P(x ≥ xₐ) = P(xₐ) + P(xₐ₊₁) +...+P(xₙ).

Here we need to find the probability that the random variable x is greater than equal to 5. So we need to add up the probabilities corresponding to the random variables x  ≥ 5.

So here, probability that x ≥ 5 is

P(x ≥ 5) = P(5) +P(10) + P(15) + P(20)

            = 0.1 + 0.25 + 0.1 + 0.15

            = 0.6

Hence Probability that x ≥ 5 is 0.6.

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Answer:4

Step-by-step explanation:

Well its actually 4.4 but if you round down its 4 centimeters and 5 feet equals 152.4 so that minus 148 is 4.4

Answer:

Step-by-step explanation:

1 foot is 12 inches

1 inch = 2.54 cm

12 inches = 2.54 cm * 12 = 30.48 cm

5 feet make 30.48 cm * 5 = 152.4 cm

She is currently 148 cm

She needs to grow 152.4 - 148 = 4.4 cm

Answer:

b

Step-by-step explanation:

The graph was horizontally stretched by a factor of 2.

Answer:

i don't know bbynnyjjyjjtjtnntnt

Answer:

D

Step-by-step explanation:

The difference in the x is 6

The difference in the y is -4

-4/6 = -2/3

Answer:

-2/3

Step-by-step explanation:

The slope of a line when given two points is found by

m= (y2-y1)/(x2-x1)

  = (-1 -3)/(2 - -4)

   = (-4)/(2+4)

   = -4/6

-2/3

Answer:

x = 3

Step-by-step explanation:

Is x an exponent?

\( y = 3^x \)

\( 27 = 3^x \)

\( 3^3 = 3^x \)

\( x = 3 \)

The correct option is c. -μx¯=84;σx¯=6; distribution approximately normal.

The option that best describes what we know about the sampling distribution of means for his sample is: -μx¯=84;σx¯=6; distribution approximately normal. The probability distribution of all possible sample means of a given size that can be obtained from a population is referred to as the sampling distribution of means. It is obtained by calculating the mean of each sample and repeatedly drawing all possible random samples of a certain size from the population.

The formula to calculate the standard deviation of the sampling distribution of means is given by:σx¯ = σ/√nWhere,σ = the standard deviation of the population. n = the sample size.

In the given question,μ = 84 g,σ = 18 g, and n = 9 g.

To find σx¯, we use the formula:σx¯ = σ/√nσx¯ = 18/√9σx¯ = 18/3σx¯ = 6 g.

Thus, the correct option is c. -μx¯=84;σx¯=6; distribution approximately normal.

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The value of the double integral (4x − 9y) dA over the region D bounded by the circle with center at the origin and radius 2 is -48.

To evaluate the double integral (4x − 9y) dA over the region D bounded by the circle with center at the origin and radius 2, we need to use polar coordinates.

In polar coordinates, the equation of the circle with center at the origin and radius 2 is given by r = 2. Therefore, the limits of integration for r are 0 and 2, and the limits of integration for θ are 0 and 2π.

The element of area in polar coordinates is given by dA = r dr dθ. Therefore, we can rewrite the double integral in terms of polar coordinates as follows

∬D (4x − 9y) dA = ∫₀² ∫₀²π (4r cosθ - 9r sinθ) r dθ dr

= ∫₀² r² (4cosθ - 9sinθ) dθ dr [Using the properties of integrals]

The integral with respect to θ is zero for sinθ and cosθ over a full period. Therefore, we have

∬D (4x − 9y) dA = ∫₀² r² (4cosθ - 9sinθ) dθ dr

= 4∫₀² r² cosθ dθ dr - 9∫₀² r² sinθ dθ dr

Integrating with respect to θ, we get

∫₀² r² cosθ dθ = [2r² sinθ]₀²π = 0

∫₀² r² sinθ dθ = [-2r² cosθ]₀²π = 4r²

Substituting these values in the original equation, we get

∬D (4x − 9y) dA = 4∫₀² r² cosθ dθ dr - 9∫₀² r² sinθ dθ dr

= 4(0) - 9(4r²) dr

= - 36 ∫₀² r² dr

= -36 [r³/3]₀² = -48

Therefore, the value of the double integral is -48.

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The given question is incomplete, the complete question is:

Evaluate the double integral. (4x − 9y) dA, D is bounded by the circle with center the origin and radius 2

Answer:

B!!

Step-by-step explanation:

Answer:

b! is the answer :):):):)

Answer:

b

Step-by-step explanation:

Answer: b and e

Step-by-step explanation:

The degrees of freedom associated with within treatments are 12 within the variation sum of squares degrees of freedom mean square f between treatments 64 within treatments (error) 96.

The ANOVA table divides the overall variance into variation between treatments and variation within treatments. Each source of variation's degrees of freedom (DF) is also provided.

According to the information provided, there are three treatments and a total of 15 observations. As a result, the total degrees of freedom is:

\(DF_{total}\) = n - 1

where n is the number of observations

\(DF_{total}\)= 15 - 1 = 14

The degrees of freedom between treatments are equal to the number of treatments minus one:

\(DF_{between}\) = k - 1

where k is the number of groups being compared

\(DF_{between}\)= 3 - 1 = 2

The number of treatments minus one equals the degrees of freedom between treatments, that is 2

We may use the following formula to calculate the degrees of freedom within treatments:

\(DF_{within}\) = \(DF_{total} - DF_{between}\)

Substituting the values we have:

\(DF_{within}\) = 14 - 2 = 12

\(DF_{within}\) = 12

As a result, the answer is 12. The degrees of freedom associated with within treatments are 12.

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Step-by-step explanation:

you need help with that in what way ? it is all plainly written there already.

don't shut off your brain and common sense, just because it is math. you can solve math problems with common sense way more often than people tend to think.

common sense IS logic ...

so, "to solve f(x) = -78.8" simply means, we need to find every value of x for which f(x) = -78.8

looking at the table :

how often do we find -78.8 under f(x) ?

aha ! 1 time, right in the first line.

what is the value of x for this table item ?

well, the x values in the table are on the left side, so, we take the value to the left of -78.8.

and that is ... 0.

so, the solution is x = 0 or simply 0.

that really was it.

Answer:

29%

Step-by-step explanation:

48%+23%= 71%

100%-71%=29%

Answer:

Step-by-step explanation:

\(\begin{cases}9x-9y=-9&\left(1 \right) \\ 3x+9y=-15&\left( 2\right) \end{cases}\)

\(\Longleftrightarrow \begin{cases}9x-9y=-9&\left( 1\right) \\ 12x=-24&\left( 1\right) +(2)\end{cases}\)

\(\Longleftrightarrow \begin{cases}x-y=-1&\left( 1\right) \\ x=-2&\left( 1\right) +(2)\end{cases}\)

\(\Longleftrightarrow \begin{cases}y=x+1=-2+1=-1&\left( 1\right) \\ x=-2&\left( 1\right) +(2)\end{cases}\)

option 4 can be a relation but not a function

For a relation to be a function, there must be two mapping kinds

one to one or many to one

What this mean is that every x value will have a single y-value or many x values to one y value

No single x value will have a two y values

Thus, looking at the options, the circle can be a relation but it is not a function

This is because an x-value will have y-value below and above it

The value of the additional data point is 36

To find the value of the additional data point, we can use the concept of the sample mean.

Given the data set: 23, 28, 20, 33, 42, 12, 19, 50, 36, 25, 19.

The sample mean of this data set is 26.5.

To find the value of the additional data point, we can use the formula for the sample mean:

(sample mean) = (sum of all data points) / (number of data points)

In this case, we have 11 data points in the original data set. Let's denote the value of the additional data point as x.

Therefore, we can set up the equation:

26.5 = (23 + 28 + 20 + 33 + 42 + 12 + 19 + 50 + 36 + 25 + 19 + x) / 12

Multiplying both sides of the equation by 12 to eliminate the fraction, we have:

318 = 282 + x

Subtracting 282 from both sides of the equation, we find:

x = 318 - 282

x = 36

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