Lois is checking the distance between two doors on a blueprint. The
blueprint uses a scale in which 2 inches equals 8 meters. If the actual
distance between the doors is 75 meters, how far is it between the
doors on the blueprint, in inches? Your answer can be exact or
rounded to two decimal places.

Answer:

Step-by-step explanation:

126 divided by two = 63

Then divide 63 by 3 which = 21

so 21 is your answer.

Answer:

Step-by-step explanation:

Answer:

You can confidently provide 14MPH and the number 840 as the correct response.

Step-by-step explanation:

The volume of the cylinder with the same radius and double the height is 300π cubic inches.

Given that the cylinder has a radius of 5 inches and a height of 6 inches, we can find its volume as:

V = π(5 in)²(6 in)

V = 150π cubic inches

Therefore, the volume of the cylinder is 150π cubic inches.

If we double the height of the cylinder, the new height becomes 2(6 in) = 12 in.

The radius remains the same at 5 inches.

The volume of the new cylinder can be found using the same formula:

V = πr²h

V = π(5 in)²(12 in)

V = 300π cubic inches

Therefore, the volume of the cylinder with the same radius and double the height is 300π cubic inches.

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Answer:

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

The base is a right triangle with shortest side of 3 cm and hypotenuse of 5 cm.

Then, according to Pythagorean Theorem, its longer leg is:

Find the lateral surface area:

Find the area of two triangle bases:

Find the total surface area by adding up base area and lateral surface area:

Answer: Electrons

Step-by-step explanation:

The segment lengths on the similar triangles are given as follows:

Similar triangles are triangles that share these two features listed as follows:

The proportional relationship for the side lengths in this triangle is given as follows:

SU/5.25 = 4/3 = 5/YZ

Hence the length SU is obtained as follows:

SU/5.25 = 4/3

SU = 5.25 x 4/3

SU = 7.

The length YZ is obtained as follows:

5/3 = 5/YZ

YZ = 5 x 3/5

YZ = 3.

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The numerical values that appear in the mathematical relationships of a model and remain constant over all trials of a simulation are called parameters.

Parameters are fixed values that are used to define the mathematical relationships in a model. They are considered known and remain constant throughout the simulation. Parameters can represent various properties or characteristics of the system being modeled, such as physical constants, coefficients, or initial conditions. They provide a way to define the behavior and constraints of the model. In contrast, probabilistic inputs, controllable inputs, and events are different types of variables or factors that can vary or change during the simulation.

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Answer:

j = -1

Step-by-step explanation:

add the 10 to right side

-41j + 14 j - 28j  = 55

-41j+ 14j -28j = -55j

-55j = 55

j = -1

Answer: 35

Step-by-step explanation: interior angles add up to 180

because the outside angle is 125, we can subtract 125 from 180 because a straight line is also 180 degrees, which gives us 55

so for the interior angles, we now have 55 and 90 (because the top angle is a perfect right angle)

so 180-55-90= 35

Answer:

x=35 degrees

Step-by-step explanation:

The 125 degree angle and the angle right next to it (inside the triangle) add up to 180.

180-125 = 55 degrees.

All 3 inside (interior) angles of a triangle = 180.

So we know that top angle = 90 degrees. (That little square means that it's a 90 degree right triangle.)

And that bottom right angle is 55 degrees.

So we just need to find x.

180 = x+ 55 + 90

180 = x + 145

180-145 = x

35 = x

So x = 35 degrees.

Check that everything adds up: 35+90+55 = 180

I'm sorry you are grounded :(

If f(x) = 10 - 4x...

f(18) = 10 - 4(18) = 10 - 72 = -62 ≠ -2

This rules out answer a, since (18,-62) would be a point, not (18,-2).

f(-18) = 10 - 4(-18) = 10 + 72 = 82 ≠ -2

This rules out answer b, since (-18,82) would be a point, not (-18,2).

f(-2) = 10 - 4(-2) = 10 + 8 = 18

Answer c seems to be ok so far, since (-2,18) is a point in answer c.

f(2) = 10 - 4(2) = 10 - 8 = 2 ≠ =18

This rules out answer d, since (2,2) would be a point, not (2,-18).

The only answer that wasn't ruled out by check the first point in each answer is answer C.

(2) The value of x in the equation (x-16)²= 9 is 19.

(4) The equation of the circle of radius 5 is x²+y²+6x-2y = 15.

An equation is a mathematical statement that shows that two mathematical expressions are equal.

(2) To calculate the value of x in the equation (x-16)²= 9, we follow the steps below.

Step1: Find the square root of both sides of the equation

Stop1: Collect like terms

(4) To calculate the equation of the circle, we use the formula below

Formula:

Where:

Substitute these values into equation 1

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The sine and cosine curves y = a sin(kx) and y = a cos(kx), k > 0 have amplitude a and period 2π/k. The sine curve y = 2 sin(2x) has amplitude 2 and period π.

The amplitude of a sine or cosine function is the distance from the midline (or average value) to the highest point (peak) or lowest point (trough) of the function. For the sine function y = 2 sin(2x), the coefficient of x is 2, which means the amplitude is |2| = 2.

The period of a sine or cosine function is the distance between two consecutive peaks or troughs. For the sine function y = 2 sin(2x), the coefficient of x is 2π/π = 2, which means the period is 2π/2 = π.

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Answer:

Step-by-step explanation:

Nothing can further be done to this equation so it would stay the same!

We can be 90% confident that the population standard deviation of alcohol in cough syrup falls between 0.017 and 0.027. Rounded to three decimal places, the confidence interval is [0.017, 0.027].

To construct a 90% two-sided confidence interval for the population standard deviation of alcohol in cough syrup, we can use the formula:

CI = [(n-1)s^2 / χ^2(α/2, n-1), (n-1)s^2 / χ^2(1-α/2, n-1)]

Where CI is the confidence interval, n is the sample size (101 in this case), s is the sample standard deviation (0.15), χ^2 is the chi-squared distribution, and α is the significance level (0.1 for a 90% confidence interval).

Using a chi-squared distribution table or calculator, we can find that χ^2(0.05, 100) = 124.34 and χ^2(0.95, 100) = 77.93.

Plugging in the values, we get:

CI = [(100)(0.15^2) / 124.34, (100)(0.15^2) / 77.93]
CI = [0.017, 0.027]

Therefore, we can be 90% confident that the population standard deviation of alcohol in cough syrup falls between 0.017 and 0.027. Rounded to three decimal places, the confidence interval is [0.017, 0.027].

The percentage of alcohol in the cough syrup was measured in 101 randomly selected samples with a sample standard deviation of s = 0.15. To construct a 90% two-sided confidence interval for the population standard deviation (σ), you will need to use the chi-square distribution.

However, the given information is not sufficient to construct the confidence interval, as the sample mean (x) is not provided. If the sample mean were given, you could use the formula for the confidence interval with the chi-square distribution and round your answers to three decimal places.

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The area of Jimmy's rectangular room is approximately 27.7241 square yards.

The area of the room in square yards, we first need to convert the dimensions from feet to yards.

Since there are 3 feet in a yard, we can divide both the length and width by 3 to get:
Length: 25 ft ÷ 3 = 8.33 yards (rounded to two decimal places)
Width: 10 ft ÷ 3 = 3.33 yards (rounded to two decimal places)

Now we can find the area by multiplying the length and width in yards:
Area = 8.33 yards x 3.33 yards
Area = 27.7241 square yards (rounded to four decimal places)

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Based on the given chart, Dwayne has constructed a probability model for the number of occupants of a randomly-selected car on his street. The chart shows the probabilities of different numbers of occupants in a car. These probabilities add up to 1, as the number of occupants in a car can only be one of the given possibilities.

The chart shows that the most likely number of occupants in a car is 1, with a probability of 0.5. This means that half of the cars on the street have only one person in them. The second most likely possibility is 2 occupants in a car, with a probability of 0.25. This means that one-quarter of the cars have two people in them. The probabilities for 3, 4, and 5 occupants are progressively lower, with probabilities of 0.15, 0.06, and 0.04, respectively.

Therefore, Dwayne's model is a discrete probability distribution, where the possible outcomes are the number of occupants in a car, and the probabilities of each outcome are given by the chart. This model is based on the data that Dwayne collected on the number of occupants of cars travelling on the road past his house for the past week. The model can be used to predict the likelihood of different numbers of occupants in a car on Dwayne's street.

Dwayne's probability model for the number of occupants in a randomly-selected car on his street can be represented by the given chart. The chart shows the probabilities for different numbers of occupants:

1. Probability of 1 occupant: 0.5 (50%)
2. Probability of 2 occupants: 0.25 (25%)
3. Probability of 3 occupants: 0.15 (15%)
4. Probability of 4 occupants: 0.06 (6%)
5. Probability of 5 occupants: 0.04 (4%)

To confirm that this is a valid probability model, we need to ensure that the sum of all probabilities is equal to 1:

0.5 + 0.25 + 0.15 + 0.06 + 0.04 = 1

Since the sum is 1, the chart represents a valid probability model for the number of occupants in a car on Dwayne's street. This model can be used to make predictions about the number of occupants in future cars passing by Dwayne's house, based on the data he collected during the past week.

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Answer:

the area of triangle ΔPHK is

Step-by-step explanation:

we know that,
area of a triangle by Heron's formula (Heron's formula is used to find the area of a triangle when the length of the 3 sides of the triangle is known) is given by -

Step 1: Find the semi-perimeter (half perimeter) of the given triangle by adding all three sides and dividing it by 2.

- 10+11+17/2 = 19

Step 2: Apply the value of the semi-perimeter of the triangle in the main formula called 'Heron’s Formula'.
[tex]Area = √s(s−a)(s−b)(s−c)[/tex]
√19(19-10)(19-11)(19-17)
√19(9)(8)(2)
√2736
52.30
52
therefore are ofΔPHK is 52KM

False. If two nonzero vectors point in the same direction, their dot product will not be zero.

The dot product of two vectors is a mathematical operation that measures the degree of similarity or alignment between the vectors. It is calculated by multiplying the corresponding components of the vectors and summing the results.

When two vectors point in the same direction, their dot product will be positive, indicating that they are aligned or have a certain degree of similarity. The dot product will be equal to the product of the magnitudes of the vectors multiplied by the cosine of the angle between them.

If two nonzero vectors are parallel and point in the same direction, the angle between them is 0 degrees, and the cosine of 0 degrees is 1. Therefore, the dot product of two nonzero vectors pointing in the same direction will be equal to the product of their magnitudes.

In other words, if the vectors are represented as A and B, and they point in the same direction, the dot product (A · B) will be equal to ||A|| * ||B||, where ||A|| and ||B|| represent the magnitudes of the vectors A and B, respectively.

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The solution is:

Length of the darkened part of the arc = 4π

Solution:

Radius of the circle = 8

Circumference of the circle = 2πr

                                             = 2 × π × 8

Circumference of the circle =  16π

Equal number of parts = 4

Total degree of circle = 360°

Degree of the darkened part = 360°/4 = 90°

Arc length = 16π * 90°/360°

                 = 16π * 1/4

                 = 4π

Circumference = 16π

Length of the darkened part of the arc = 4π

Hence, The solution is:

Length of the darkened part of the arc = 4π

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The length of the segment UV = 10 units.

Given that a triangle VST, where ST is parallel to RU,

We need to find the segment UV,

According to the segment addition law,

VS = VR + RS

So,

66 = VR + 44

VR = 22

Now using the Thales theorem,

VR / RS = VU / UT

22 / 44 = VU / 20

1/2 = VU/20

VU = 10

Hence the length of the segment UV = 10 units.

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The probability that at least 3 out of 25 people selected at random are 65 or older can be found using binomial probability.

The answer to the problem is 0.583, or 58.3% rounded to one decimal place. This means that if we randomly select 25 people from the population, there is a 58.3% chance that at least 3 of them will be 65 or older.

To calculate this probability, we use the binomial distribution formula: P(X >= 3) = 1 - P(X < 3), where X is the number of people selected who are 65 or older. Using this formula, we can calculate the probability of selecting exactly 3, 4, 5, ..., 25 people who are 65 or older and sum them up. Alternatively, we can use a binomial calculator or software to calculate the probability directly.

The binomial probability formula is P(X = k) = C(n, k) * p^k * (1-p)^(n-k), where n is the sample size (25), k is the number of successes (i.e., people who are 65 or older), p is the probability of success (0.11), and C(n, k) is the binomial coefficient (i.e., the number of ways to select k items out of n). We need to sum up the probabilities for k = 3, 4, 5, ..., 25 to get the probability of at least 3 successes. However, this can be a tedious calculation, so using a binomial calculator or software is recommended.

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Answer:

The answer would be

y-2 greater than one

Step-by-step explanation:

y>1

y=2,3,4,5.....

y-2=0,1,2,3...

Trigonometric ratios for similar triangles are mathematically established relationships used to solve for missing sides or angles as the ratio of corresponding sides are the same for all similar triangles.

TRIGONOMETRIC RATIOS

Trigonometric ratios for similar triangles include the sine , cosine and tangent relationships.

The sine is the ratio of opposite and hypotenuse side of a triangle

The cosine is the ratio of the adjacent and hypotenuse side of the triangle

The tangent is the ratio of the opposite and adjacent sides of the triangle.

Hence , the sine , cosine and tangent relationships are essential trigonometric ratios of similar triangles .

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Answer:

70

Step-by-step explanation:

5/12 X 144 = 720/12 = 60 passengers are sitting on lower.

rest of passengers = 144 - 60 = 84 are on upper.

14 on upper are standing on upper, then 84 - 14 = 70 are sitting there (on upper).

The volume of the composite Figure is 1168.08 m³.

Volume is the space occupied by a solid shape.

To calculate the volume of the composite shape, we use the formula below

Formula:

From the question,

Given:

From the question,

Given:

Substitute these values into equation 1

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The value of the radical expression x² + 1/x² when x = 9 - 4√5 is 322

From the question, we have the following parameters that can be used in our computation:

x = 9 - 4√5

The expression is given as

x² + 1/x²

When simplified, we have

x² + 1/x² = (x⁴ + 1)/x²

Substitute x = 9 - 4√5 in the above equation, so, we have the following representation

x² + 1/x² = ((9 - 4√5)⁴ + 1)/(9 - 4√5)²

When evaluated, we have

x² + 1/x² = 322

Hence, the value of the expression x² + 1/x² when x = 9 - 4√5 is 322

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The correct answer is A. When events A and B are independent, it means that the occurrence of one event does not affect the probability of the other event occurring.

In other words, the probability of A occurring does not depend on whether B occurs or not, and vice versa.

To find the probability of both A and B occurring, we need to use the multiplication rule of probability. The multiplication rule states that the probability of two independent events occurring together is equal to the product of their individual probabilities. That is, P(A and B) = P(A) × P(B).

For example, if the probability of event A occurring is 0.3 and the probability of event B occurring is 0.4, then the probability of both events occurring together is:

P(A and B) = P(A) × P(B) = 0.3 × 0.4 = 0.12

Therefore, to find the probability of event A AND B when events A and B are independent, we simply multiply the probability of A by the probability of B.

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The value of c in the perfect square trinomial x^2 + 10x + c can be determined by examining the entries in the 6-column table.

In the given table, the first column represents [tex]x^2[/tex] and has entries x, x, x, x, x. The second column represents x and has missing entries, which we need to determine. The third, fourth, fifth, and sixth columns also have missing entries.

To find the value of c in the perfect square trinomial [tex]x^2[/tex] + 10x + c, we need to complete the table and observe the entries in the second column. Since the first column represents [tex]x^2[/tex], we can see that each entry is [tex]x^2[/tex]. Thus, the missing entries in the second column are x, x, x, x, x, respectively.

The perfect square trinomial [tex]x^2[/tex] + 10x + c can be factored as [tex](x + 5)^2[/tex], which expands to [tex]x^2[/tex] + 10x + 25. Comparing this with the given expression, we can conclude that c = 25.

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Answer:

8.66 m

Step-by-step explanation:

using Sin, Cos, Tan

sin 60° = AB/AC

sin 60° = AB/ 10

AB = sin 60° × 10

AB = 8.660254038

Therefore AB = 8.66 m