PLEASE HELP!!

Which method would be used to best prove the two triangles are similar? (Reminder, arrows represent parallel lines.)

A. AA Similarity Theorem
B. ASA Similarity Theorem
C. SAS Similarity Theorem
D. SSS Similarity Theorem
E. There is not enough information provided

Answer: m^3

Step-by-step explanation:

Taking the square root of something is the same as raising it to the half power the square root of 4 is equal to 4^(1/2). This hold true with any root, not just square root. M^(3b) to the b root is equal to m^(3b x (1/b)). Ignore the base (m) for a second and the exponents make 3b x (1/b) which equals (3b/b). The b on the top and bottom cancel and you’re left with a 3. The answer is m^3

a) Sample distribution follows normal distribution with mean( μ) = 1.10 kg,

and standard deviation σ = 0.081

b) Sample distribution follows normal distribution with mean( μ)  = 1.10 kg,

and standard deviation σ = 0.04

d) The percentage of all samples of three men that have mean brain weights within 0.1 kg of the population mean brain weight of 1.10 kg is 79.77%.

e) The percentage of all samples of twelve men that have mean brain weights within 0.1 kg of the population mean brain weight of 1.10 kg is 99.3%.

2) 68.26% of men in country A have brain weights between 1.48 kg and 1.72 kg.

Solution:

Population standard deviation is the measure of how spread out the population data is. It measures the difference of the individual items from the mean. A standard deviation is a statistic that measures the dispersion of a dataset relative to its mean. It is calculated as the square root of variance by determining the variation between each data point relative to the mean.

1)

Given mean = 1.10 kg, standard deviation = 0.14 kg

a) To find the sampling distribution of the sample mean for samples of size 3.

Standard error of mean = σ/√n

= 0.14/√3

=0.081

Sample distribution follows normal distribution with mean( μ) = 1.10 kg,

and standard deviation σ = 0.081

b) To find the sampling distribution of the sample mean for samples of size 12.

Standard error of mean = σ/√n

= 0.14/√12

= 0.04

Sample distribution follows normal distribution with mean( μ)  = 1.10 kg,

and

standard deviation σ = 0.04

d) Determine the percentage of all samples of three men that have mean brain weights within 0.1 kg of the population mean brain weight of 1.10 kg.

Sample distribution follows normal distribution with mean( μ)  = 1.10 kg,

and

standard deviation σ = 0.081

Z = (x - μ) / σZ

= (1.1 + 0.1 - 1.1) / 0.081

= 1.23

Z = (1.1 - 0.1 - 1.1) / 0.081

= -1.23

P ( -1.23 < Z < 1.23) = 0.7977

The percentage of all samples of three men that have mean brain weights within 0.1 kg of the population mean brain weight of 1.10 kg is 79.77%.

e) Determine the percentage of all samples of twelve men that have mean brain weights within 0.1 kg of the population mean brain weight of 1.10 kg.

Sample distribution follows normal distribution with mean( μ )= 1.10 kg,

and

standard deviation σ = 0.04

Z = (x - μ) / σ

Z = (1.1 + 0.1 - 1.1) / 0.04

= 2.5

Z = (1.1 - 0.1 - 1.1) / 0.04 = -2.5

P ( -2.5 < Z < 2.5) = 0.993

The percentage of all samples of twelve men that have mean brain weights within 0.1 kg of the population mean brain weight of 1.10 kg is 99.3%.

2)

Given mean = 1.60 kg,

standard deviation = 0.12 kg

68.26% of men in country A have brain weights between μ - σ and μ + σ

68.26% of men in country A have brain weights between 1.48 kg and 1.72 kg.

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Answer:

The solutions are given below:

Step-by-step explanation:

x(x-3)+4(x²+2)

= x²-3x+4x²+8

= x²+4x²+8-3x

= 5x²+8-3x

2(a+5)-3(a+7)

= 2a+10-3a-21

= 2a-3a+10-21

= -a-11

xy(x²yz-xy²z+xyz²)

= x³y²z-x²y³z+x²y²z²

-4(a²-2a+8)

= -4a²+8a-32

Answer is in the file below

tinyurl.com/wtjfavyw

Answer:

I'm pretty sure it is D I'm not 100% sure though... sorry if it is wrong

The expressions represent the total sales of both people in this week, where S represents Stephanie worked and R represents the number of hours that Robert worked is B- 12S + 15R +18

In mathematics, an algebraic expression is an expression built up from integer constants, variables, and the algebraic operation.

Now it is given that,

Number of pretzels sell by Stephanie per hour = 12

Number of pretzels sell by Robert per hour = 15

Since S represents the number of hours that Stephanie worked and R represents the number of hours that Robert worked

So, Number of pretzels sell by Stephanie in S hour = 12S

Number of pretzels sell by Robert in R hour = 15R

Now it is also given that, Robert sold an additional 18 pretzels

So, Total Number of pretzels sell by Robert in R hour = 15R + 18

So, the expression for the total sales of both people in this week

Total Number of pretzels sell by Stephanie + Total Number of pretzels sell by Robert

= 12S + 15R + 18

Thus, the expressions represent the total sales of both people in this week, where S represents Stephanie worked and R represents the number of hours that Robert worked is B- 12S + 15R +18

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Answer:

8000

Step-by-step explanation:

Answer:

Step-by-step explanation:

Here you go mate

Step 1

(-4x-3)-(7x-3) =22​  Equation

Step 2

(-4x-3)-(7x-3) =22​  Simplify

-11x=22

Step 3

-11x=22  Divide

Answer

x=-2

Now we have to,

→ find the required value of x.

Then the value of x is,

→ (-4x - 3) - (7x - 3) = 22

→ -4x - 3 - 7x + 3 = 22

→ -11x + 0 = 22

→ x = -22/11

→ [ x = -2 ]

Thus, the value of x is -2.

Answer:

2. 55

3. 125

4. 125

Step-by-step explanation:

Answer:

(2v+3) (v^2+7)

Step-by-step explanation:

2v^3 + 3v^2 + 14v +21

v^2 (2v+3) + 7(2v+3)

= (2v+3) (v^2+7)

I think this is the correct answer from what I remeber, sorry if I may have it wrong.

The horizontal distance between the base of the ladder and the wall is approximately 16.06 feet.

To find the flat distance between the foundation of the  stool and the wall, we utilize geometry. For this situation, we can utilize the sine capability, which relates the contrary side of a right triangle to the hypotenuse and the point inverse the contrary side.

Let x be the flat distance between the foundation of the stepping stool and the wall. Then, utilizing the given point of 64 degrees, we can compose:

sin(64) = inverse/hypotenuse

where the hypotenuse is the length of the stepping stool, which is 18 feet.

Addressing for the contrary side, which is the even distance we need to find, we get:

inverse = sin(64) x hypotenuse

inverse = sin(64) x 18

inverse = 16.06 feet

Accordingly, the even distance between the foundation of the stepping stool and the wall is roughly 16.06 feet.

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Given:

A figure of a right triangle and an altitude form the right angle vertex to hypotenuse.

To find:

The value of x.

Solution:

From the given figure, it is clear that the altitude divides the hypotenuse in two segments x and 8.

Length of altitude = 18

If an altitude divide the hypotenuse in 2 segments, then according to the geometric mean theorem, the length of the altitude is the geometric mean of two segments of hypotenuse.

By using geometric mean theorem,  we get

\(18=\sqrt{x\times 8}\)            \([\because \text{Geometric mean of }a,b,c:b=\sqrt{ac}]\)

\(18^2=8x\)

\(324=8x\)

Divide both sides by 8.

\(\dfrac{324}{8}=x\)

\(40.5=x\)

Therefore, the value of x is 40.5.

If there were any variations in the distribution during the preparation process, the slices might have slight differences in the amount of sauce and toppings.

each slice of the 12-inch thin-crust cheese pizza would have an equal distribution of sauce and toppings. This means that each slice would have the same amount of sauce and toppings spread evenly across its surface.

Since the pizza is cut equally into eight slices, each slice would represent 1/8th of the total pizza. Therefore, each slice would have an equal portion of the sauce and toppings.

It's important to note that the exact amount of sauce and toppings on each slice would depend on the original distribution applied to the pizza before it was sliced. If the pizza was prepared with a uniform distribution of sauce and toppings across the entire pizza, then each slice would indeed have an equal amount. However, if there were any variations in the distribution during the preparation process, the slices might have slight differences in the amount of sauce and toppings.

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Answer:

a = 6

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Trigonometry

[Right Triangles Only] Pythagorean Theorem: a² + b² = c²

Step-by-step explanation:

Step 1: Define

Identify variables

a = a

b = 8

c = 10

Step 2: Solve for a

110.25 daps are equivalent to 42 dips. We can use the given values of equivalent measures to get to the required measure: 4 daps = 3 dops, which can be written as 1 dap = (3/4) dops, 2 dops = 7 dips, which can be written as 1 dop = (7/2) dips.

Given: 4 daps = 3 dops and 2 dops = 7 dips

We need to find: how many daps are equivalent to 42 dips?

Solution: We can use the given values of equivalent measures to get to the required measure:

4 daps = 3 dops, which can be written as 1 dap = (3/4) dops

2 dops = 7 dips, which can be written as 1 dop = (7/2) dips

Using the above relations we can find the relation between daps and dips: 1 dap = (3/4) dops = (3/4) * (7/2) dips = (21/8) dips

Or we can write, 8 daps = 21 dips

To find how many daps are equivalent to 42 dips, we can proceed as follows: 8 daps = 21 dips

1 dap = 21/8 dips

Therefore, to get 42 dips, we need: (21/8) * 42 dips = 110.25 daps (Answer)

Thus, 110.25 daps are equivalent to 42 dips. Given that 4 daps = 3 dops and 2 dops = 7 dips, we need to find how many daps are equivalent to 42 dips. This problem requires us to use equivalent measures of the given units to find the relation between the required units. As per the given values of equivalent measures, 4 daps are equivalent to 3 dops and 2 dops are equivalent to 7 dips. Using these values, we can find the relation between daps and dips as follows:

1 dap = (3/4) dops = (3/4) * (7/2) dips = (21/8) dips Or, 8 daps = 21 dips

Thus, we have found the relation between daps and dips. Now we can use this relation to find how many daps are equivalent to 42 dips. To find how many daps are equivalent to 42 dips, we can use the relation derived above as follows: 1 dap = 21/8 dips

Therefore, to get 42 dips, we need:(21/8) * 42 dips = 110.25 daps

Hence, 110.25 daps are equivalent to 42 dips.

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If a quadratic function y = f(x) is plotted on a graph and the vertex of the resulting parabola is (4, 6), the vertex of the function defined as g(x) = f(x +2) - 2 is (2, 4).

In Mathematics, the translation a geometric figure or graph to the left simply means subtracting a digit from the value on the x-coordinate of the pre-image while the translation a geometric figure or graph downward simply means subtracting a digit from the value on the y-coordinate (y-axis) of the pre-image.

In Geometry, the function g(x) = f(x + 2) - 2 simply means shifting a graph of the parent function by 2 units to the left and 2 units down.

In this context, we can reasonably infer and logically deduce that the vertex of the image g(x) is given by;

Vertex = (4 - 2, 6 - 2)

Vertex = (2, 4).

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Answer:b

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

i multiply the 16 to the ratio of meters to feet and got 52.4934

∫[3, 8] f(x) dx equals approximately 1683.17.

∫[3, 8] g(x) dx equals approximately 1932.5

To evaluate the given integrals, let's first identify the functions f(x) and g(x) and their respective intervals.

f(x) = 4x^2 - 3x + 2

g(x) = 2x^3 - 5x + 1

Interval: [3, 8]

Now, let's evaluate the integrals step by step.

∫[3, 8] f(x) dx:

We integrate the function f(x) over the interval [3, 8].

∫[3, 8] (4x^2 - 3x + 2) dx

To find the integral, we can use the power rule for integration. For each term, we increase the exponent by 1 and divide by the new exponent.

= [4 * (x^3/3) - 3 * (x^2/2) + 2x] evaluated from 3 to 8

Now we substitute the upper and lower limits into the integral expression:

= [(4 * (8^3/3) - 3 * (8^2/2) + 2 * 8) - (4 * (3^3/3) - 3 * (3^2/2) + 2 * 3)]

Simplifying further:

= [(4 * 512/3) - (3 * 16/2) + 16 - (4 * 27/3) + (3 * 9/2) + 6]

= [(1706.67) - (24) + 16 - (36) + (13.5) + 6]

= 1683.17

Therefore, ∫[3, 8] f(x) dx equals approximately 1683.17.

∫[3, 8] g(x) dx:

We integrate the function g(x) over the interval [3, 8].

∫[3, 8] (2x^3 - 5x + 1) dx

Using the power rule for integration:

= [(2 * (x^4/4)) - (5 * (x^2/2)) + x] evaluated from 3 to 8

Substituting the upper and lower limits:

= [(2 * (8^4/4)) - (5 * (8^2/2)) + 8 - (2 * (3^4/4)) + (5 * (3^2/2)) + 3]

Simplifying further:

= [(2 * 4096/4) - (5 * 64/2) + 8 - (2 * 81/4) + (5 * 9/2) + 3]

= [(2048) - (160) + 8 - (162/2) + (45/2) + 3]

= 1932.5

Therefore, ∫[3, 8] g(x) dx equals approximately 1932.5

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Characteristics of vectors:

Moving up 5 units and then back down 5 units you would be in the original starting location.

Answer (2,-2)

Answer:

False

Step-by-step explanation:

The answer is False

The given statement is false, as the letters are used as keys in the dictionary.

The dictionary used in counting letters examples to keep track of letter frequencies uses the letters as the key and the count as the value. This means that for each letter encountered in a string, the value corresponding to the key (letter) in the dictionary is incremented by 1.

For example, if the string is "hello", the dictionary would initially be empty, and for each letter encountered in the string, the value for the corresponding key in the dictionary would be incremented by 1, resulting in a dictionary like {"h": 1, "e": 1, "l": 2, "o": 1}.

Therefore, the correct answer is false, as the letters are used as keys in the dictionary.

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One mile is equal to 5,280 feet. Therefore, to convert the altitude of Denver from miles to feet, we can multiply by 5,280:

1 mile × 5,280 feet/mile = 5,280 feet

So, Denver's altitude of 1 mile is equal to 5,280 feet.

The probability that the average number of hours of overtime worked last month by a random sample of 140 employees in the city exceeds 20 hours is approximately 0.9564, or 95.64%.

To find the probability that the average number of hours of overtime worked by a random sample of 140 employees exceeds 20 hours, we can use the Central Limit Theorem (CLT). The CLT states that for a large enough sample size, the sampling distribution of the sample mean approaches a normal distribution, regardless of the shape of the population distribution.

Given that the population mean is 18.9 hours and the population standard deviation is 7.8 hours, we can calculate the standard error of the mean using the formula: standard error = population standard deviation / sqrt(sample size).

For this problem, the sample size is 140, so the standard error is 7.8 / sqrt(140) ≈ 0.659.

To calculate the probability, we need to standardize the sample mean using the z-score formula: z = (sample mean - population mean) / standard error.

In this case, the sample mean is 20 hours, the population mean is 18.9 hours, and the standard error is 0.659. Plugging these values into the formula, we get z = (20 - 18.9) / 0.659 ≈ 1.71.

Now, we can use a standard normal distribution table or calculator to find the probability associated with a z-score of 1.71. Looking up this value in the table, we find that the probability is approximately 0.9564.

Therefore, the probability that the average number of hours of overtime worked last month by a random sample of 140 employees in the city exceeds 20 hours is approximately 0.9564, or 95.64%.

Here's a sketch to visualize the calculation:

                  |

                  |

                  |

                  |       **

                  |      *  *

                  |     *    *

                  |    *      *

                  |   *        *

                  |  *          *

                  | *            *

-------------------|--------------------------

      18.9        |       20

The area under the curve to the right of 20 represents the probability we're interested in, which is approximately 0.9564 or 95.64%.

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The false statement is: C. The sampling distribution of the sample mean is exactly normal if the observations are normally distributed.

Statement A is true. According to the central limit theorem, the sampling distribution of any statistic, including the sample mean, tends to become approximately normal as the sample size increases, regardless of the underlying distribution of the population.

Statement B is true. The standard deviation of the sample mean, also known as the standard error, decreases as the sample size increases. This decrease in standard deviation indicates that the sample mean becomes a more precise estimator of the population mean.

Statement C is false. The sampling distribution of the sample mean follows an approximately normal distribution for large sample sizes, even if the individual observations are not normally distributed. The central limit theorem ensures the approximate normality of the sample mean's distribution through the law of large numbers and the convergence of the sampling distribution to a normal distribution shape.

Therefore, the false statement is C, as the sampling distribution of the sample mean is not exactly normal even if the observations are normally distributed.

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Answer: D

Step-by-step explanation:

if you where twice as likely to select a water than a cola, they would be flip flopped.

In this case, the pair of alternate interior angles would be angle 2 and 7.

Angle is a geometric object which is defined by two rays with a common endpoint. It is typically measured in degrees or radians and is used to measure the size of an angle. Angles play a key role in mathematics, being used in trigonometry, calculus, and geometry. Angles are also used in engineering and construction to ensure that components are built properly. In addition, angles are used to measure the direction of objects in the sky, such as stars and planets.

Alternate interior angles are two angles located on opposite sides of a transversal line, but within the same parallel lines. In this case, the pair of alternate interior angles would be angle 2 and 7. These two angles are located on opposite sides of the transversal line, between the two parallel lines.

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Answer:

(C)18 units

Step-by-step explanation:

From Centroid Theorems, we know that the distance from the centroid to the vertex is twice as long as the distance from the centroid to the midpoint of the side opposite the vertex.

Therefore:

CG=2DG

Let the length of segment  DG =x

The length of  segment CG is 6 units greater, therefore: CG=x+6

Substituting into CG=2DG:

x+6=2x

2x-x=6

x=6 Units

Therefore:

CD=CG+GD

=6+6+6

=18 Units

The correct option is C.

Answer:

18

Step-by-step explanation:

Line segment CG is amount to 12 and line segment GD is 6. The length of the whole line segment, CD is 18 by adding 12 and 6.

✌

Answer:

1 Point J, Point L

2. HK↔

Step-by-step explanation:

Collinear means on the same line

J and L are on the same line as K

Another name for a line b is HK↔  We can name it by using two points on the line and using the line with two arrows on the end

Asymptotes are lines that a curve approaches but does not intersect. A curve may have vertical, horizontal, or slant asymptotes or none at all. Asymptotes are critical features of the curve since they are used to help graph the function.

We will use the following steps to find asymptotes of the function h(x) = 4 + (5/x):

Vertical Asymptotes:Vertical asymptotes occur when the denominator is equal to zero. So for the function

h(x) = 4 + (5/x), the denominator x cannot be equal to 0.

Therefore x = 0 is the equation of the vertical asymptote.Horizontal Asymptotes:

Horizontal asymptotes occur when the value of y approaches a constant as x becomes extremely large.

For the function h(x) = 4 + (5/x), we need to take the limit as x approaches infinity and as x approaches negative infinity respectively.

(i) As x approaches infinity,y = 4 + 0= 4(ii) As x approaches negative infinity,y = 4 + 0= 4.

Therefore, the equation of the horizontal asymptote is y = 4.

Finally, the vertical asymptote equation is x = 0, and the horizontal asymptote equation is y = 4 for the function h(x) = 4 + (5/x).

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The precision of the measurements can change based on the number of data points and the variability of the data.

The mean absolute deviation (MAD) is a measure of the precision of a set of data. It represents the average difference between each value in the set and the mean of the set.

In this scenario, you and two other groups measured the same glassware, and you want to recalculate the MAD using the combined data from all three groups.

To find the new MAD, you need to first find the mean of the combined data set and then find the absolute difference between each value and the mean.

This will give you a set of values representing the deviation from the mean. To find the MAD, you then take the average of these deviation values.

Comparing the new MAD with your original measurement will give you an idea of the precision difference between your measurements and the combined measurements of the three groups.

If the new MAD is smaller than your original MAD, this means the combined measurements are more precise and have a smaller deviation from the mean.

The more data points and the less variability, the more precise the measurements will be. In this scenario, combining the data from three groups has likely improved the precision of the measurements.

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Area of the given shape = Area( Triangle + Square + Rectangle)

Area of Triangle = 1/2 x base x height

= 1/2 x (7-2) x (9-5)

= 1/2 x 5 x 4

= 10

Area of square = side × side

= (7-2) x ( 9-4)

= 5 x 5

= 25

Area of rectangle= base x height

= 2 x 5

= 10

Therefore , the area of given shape = 10+25+10 = 45