Pls answer quick I need this for an assignment

Answer:

T(20)  = 300

Ambient Temp = 70

Initial Temp = 375

Step-by-step explanation:

Answer:

It would be 177.8 cm!!

Step-by-step explanation:

Answer:

177.8 CM

Step-by-step explanation:

70 x 2.54

= 177.8

Answer: 38°

Step-by-step explanation:

Complementary angles are two angles that add up to 90°

Simce the first angle is 52°, subtract 90-52 to get 38°

Based on the calculations on this arithmetic sequence, the value of the first term is equal to -8.

An arithmetic sequence can be defined as a series of real and natural numbers in which each term differs from the preceding term by a constant numerical quantity.

Mathematically, the nth term of an arithmetic sequence can be calculated by using this expression:

aₙ =  a₁ + (n - 1)d

Where:

Given the following data:

Tenth term (a₁₀) = 30.

Common difference = 2.

Substituting the given parameters into the formula, we have;

10 =  a₁ + (10 - 1)2

10 =  a₁ + (9)2

10 =  a₁ + 18

a₁ = 10 - 18

First term, a₁ = -8.

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Since there was a total of 36 rolls, and 15 of the rolls gave an even number, the odds will be 15/36. This can be reduced to 5/12, your answer.

Hope that helps.

Therefore, the probability of being dealt a full house in a 5-card poker hand is approximately 0.00144 or 0.144%.

To calculate the probability of being dealt a full house in a 5-card poker hand, we need to consider the total number of possible hands and the number of favorable hands (full houses).

Total number of possible hands:

There are 52 cards in a standard deck, and we choose 5 cards for our hand. So, the total number of possible hands is given by the combination formula:

C(52, 5) = 52! / (5! * (52 - 5)!)

= 2,598,960

Number of favorable hands (full houses):

To form a full house, we need to consider the choices for the three cards of one denomination and the two cards of another denomination.

Number of choices for the denomination of three cards: We have 13 denominations (2, 3, 4, ..., 10, J, Q, K, A) to choose from.

Number of ways to choose the three cards of one denomination: We have 4 cards of each denomination in a deck. Therefore, we have C(4, 3) = 4 ways to choose three cards of one denomination.

Number of choices for the denomination of two cards: We have 12 remaining denominations (since we already used one for the three cards).

Number of ways to choose the two cards of another denomination: We have C(4, 2) = 6 ways to choose two cards of another denomination.

To calculate the total number of favorable hands, we multiply these choices:

Number of favorable hands = 13 * C(4, 3) * 12 * C(4, 2) = 13 * 4 * 12 * 6

= 3,744

Now we can calculate the probability by dividing the number of favorable hands by the total number of possible hands:

Probability of getting a full house = Number of favorable hands / Total number of possible hands

= 3,744 / 2,598,960

≈ 0.00144

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To test the hypothesis H₁: μx = μy versus Hoxy, where μx and μy represent the means of X and Y respectively, we can perform a two-sample t-test. The test compares the means of two independent samples to determine if they are significantly different from each other.

The given information provides the sample means (X = 33.8, Y = 32.5) and the sample standard deviations (Sx = 3.9, Sy = 5.1). The sample sizes for both X and Y are n = m = 25.

Using this information, we can calculate the test statistic, which is given by:

t = (X - Y) / sqrt((Sx^2 / n) + (Sy^2 / m))

Plugging in the values, we get:

t = (33.8 - 32.5) / sqrt((3.9^2 / 25) + (5.1^2 / 25))

Next, we need to determine the degrees of freedom for the t-distribution. Since the sample sizes are equal (n = m = 25), the degrees of freedom for the test is given by (n + m - 2).

Using the t-distribution table or software, we can find the critical value corresponding to a significance level of α = 0.05 and the degrees of freedom.

Finally, we compare the calculated test statistic with the critical value. If the test statistic falls within the rejection region (i.e., the absolute value of the test statistic is greater than the critical value), we reject the null hypothesis. The p-value can also be calculated, which represents the probability of observing a test statistic as extreme or more extreme than the calculated value, assuming the null hypothesis is true.

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Stephen's average speed for the round trip was 48 mph.

To find Stephen's average speed, we can use the formula:

Average Speed = Total Distance / Total Time

Let's assume the distance from Stephen's house to his aunt's house is 'd' miles.

On the way to his aunt's house, Stephen traveled at a speed of 60 mph. So the time taken for this leg of the trip is given by:

Time = Distance / Speed = d / 60

On the return trip, Stephen traveled at a speed of 40 mph. So the time taken for this leg of the trip is:

Time = Distance / Speed = d / 40

The total time for the round trip is the sum of the times for the outward and return trips:

Total Time = d / 60 + d / 40

To find the average speed, we divide the total distance by the total time:

Average Speed = Total Distance / Total Time

The total distance for the round trip is 2d (since it's the same roadway for both trips).

Average Speed = 2d / (d / 60 + d / 40)

Simplifying this expression, we get:

Average Speed = 2d / ((3d + 2d) / 120) = 2d / (5d / 120) = 2d * 120 / 5d = 240 / 5 = 48 mph

Therefore, Stephen's average speed for the round trip was 48 mph.

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(-2, -4) and (2, 4) is the solution to the given system of simultaneous equation

Given the system of equation

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

g(x) = -2x^2 + 2x + 8

When solving graphically, the point of intersection of both curves on an xy plane is the solution to the system of equation.

According to the graph attached, the solution to the system of equation is (-2, -4) and (2, 4).

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Answer: B

Step-by-step explanation: I took the test

Volume of one step = 0.25 m x 0.26 m x 0.14 m
Weight of one step = Volume of one step x 25.0 kN/m3
Weight of each step per meter width = Weight of one step / 0.26 m

To calculate the weight of each step per meter width of the staircase, we need to consider the dimensions of the step and the unit weight of the reinforced concrete.

Given:
Tread depth of the step = 250 mm
Going depth of the step = 260 mm
Rise height of the step = 140 mm
Unit weight of reinforced concrete = 25.0 kN/m3

First, let's convert the dimensions from millimeters to meters:
Tread depth = 250 mm = 0.25 m
Going depth = 260 mm = 0.26 m
Rise height = 140 mm = 0.14 m

To calculate the weight of each step per meter width, we need to find the volume of each step and then multiply it by the unit weight of reinforced concrete.

1. Calculate the volume of one step:
The volume of each step can be found by multiplying the tread depth, going depth, and rise height:
Volume of one step = Tread depth x Going depth x Rise height
                 = 0.25 m x 0.26 m x 0.14 m

2. Calculate the weight of one step:
The weight of one step can be calculated by multiplying the volume of one step by the unit weight of reinforced concrete:
Weight of one step = Volume of one step x Unit weight of reinforced concrete

3. Calculate the weight of each step per meter width:
Since we are calculating the weight per meter width, we need to divide the weight of one step by the going depth:
Weight of each step per meter width = Weight of one step / Going depth

Now, let's calculate the weight of each step per meter width using the given values:
Volume of one step = 0.25 m x 0.26 m x 0.14 m
Weight of one step = Volume of one step x 25.0 kN/m3
Weight of each step per meter width = Weight of one step / 0.26 m

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Answer:

Equation: 6 = 1w + 1

W = 5

Step-by-step explanation:

Gosh I haven't done that stuff in a while- LeTs SeE iF I cAn ReMeMbEr ThE bAsIcS

So one one side obviously you have about 6 of those ones. And on the other is one of those 1 and a W. W most likely equals 5 if those are equal too.

Sorry If i'm incorrect. This proves I do need to relearn a thing or two

Answer:

equation: 6= w+1

w= 5

Step-by-step explanation:

Answer:

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

Given equation:

Substitute:

Then we have:

Substitute back:

To determine the fraction that Lee writes on the first mark to the right of 17, we need to understand the numbering pattern and the position of the marks.

If Lee marks sixths on the number line, it means that the interval between each mark is 1/6.

Starting from 0, the first mark to the right of 17 would be located at 18.

To find the fraction written on this mark, we can calculate the difference between 18 and 17 and express it as a fraction of the interval between each mark (1/6).

18 - 17 = 1

Therefore, the fraction that Lee writes on the first mark to the right of 17 is 1/6.

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Answer:

g(x) = (1/4x)^2

Step-by-step explanation:

Given f(x), we want to get g(x)

As we can see, the point (4,1) lies on the graph of g(x)

So the correct option will be the one where g(4) = 1

Let us take a look at the second option

g(x) = (1/4x)^2

Here,

g(4) = (1/4 * 4)^1 = 1^1 = 1

To minimize costs while meeting the constraints, the optimal solution is to use 13 pounds of deluxe coffee and at least 43 pounds of regular coffee in the blend. This ensures that the minimum cost is achieved while satisfying the quantity requirements.

To solve the optimization problem step by step, let's follow the steps again

Start by considering the constraint x ≥ 13. Since we want to have at least 13 pounds of deluxe coffee, we can set x = 13.

Substitute this value of x in the first constraint: 13 + y ≥ 56. Solve for y:

13 + y ≥ 56

y ≥ 56 - 13

y ≥ 43

This means that y should be greater than or equal to 43 pounds.

We have x = 13 and y ≥ 43. These values satisfy both constraints.

Therefore, to minimize costs, we should use 13 pounds of deluxe coffee and at least 43 pounds of regular coffee.

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--The given question is incomplete, the complete question is given below "deluxe coffee is to be mixed iwth regular coffee to make at least 56 pounds of a blended coffee. the mixture must contain at least 13 pounds of deluxe coffee. deluxe coffee costs 4 perpound and regular coffee 3 per pound. how many pounds of each kind of coffee should be used to minimize costs? To attain the minimum cost, use pounds of deluxe coffee and pounds of regular coffee."--

Answer:

1. a

2.a

3.c?

4.b

5.e?

Step-by-step explanation:

a. The Red Sea trough refers to a dip in the upper-level height originating over the eastern Mediterranean moving southeastward, and deepening over the Red Sea.

b. This weather phenomenon manifests itself as it causes a sudden drop in temperatures, thunderstorms, and dust storms.

c. The Red Sea trough presents a challenge to weather forecasting as it is hard to predict when the trough will develop.

d. The Red Sea trough presents several hazards as causes heavy rainfall, strong winds, and a sudden drop in temperatures.

The Red Sea trough is one of the familiar weather patterns in Jordan. It is seen both in spring and fall.

a. The Red Sea trough is a dip in the upper-level height that originates over the eastern Mediterranean, advances southeastward, and deepens over the Red Sea. During the fall and spring seasons, this trough becomes more profound and generates a shallow low-pressure system over the Levant region, resulting in a northwesterly to northeasterly wind.

b. This weather phenomenon manifests itself in terms of weather in several ways. They are as follows:

c. The Red Sea trough presents a significant challenge to weather forecasting. It is difficult to predict when the trough will develop and the magnitude of its impacts on weather. The weather forecasters struggle to estimate the movement of the trough, its depth, and intensity, and the amount of rain and wind it will produce. As a result, the meteorological department often issues warnings and alerts, but the severity and impact of the weather are not always accurately forecasted.

d. The Red Sea trough presents several hazards. They are as follows:

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Answer:

I am thinking c, but I do not know

Step-by-step explanation:

I am sure but if not c then b

The probability to win two or more tickets in the lottery is 0.118

It is given that there is a 5% chance to win a lottery ticket.

Therefore, the probability to win a lottery ticket is

0.05

The girl here plays the game 12 times. The above distribution is clearly a Binomial Distribution

ⁿCₓ  X  pˣ  X  (1 - p)ⁿ⁻ˣ

We need to calculate the probability to win 2 or more tickets

= 1 - the probability to win at least one ticket

= 1 - P(X = 0) + P(X = 1)

here,

p = 0.05

1 - p = 0.95

n = 12

P(X = 0)

= ¹²C₀  X  0.05⁰  X  0.95¹²

= 0.54036

P(X = 1)

= ¹²C₁  X  0.05¹  X  0.95¹¹

= 0.34128

Hence we get

P(X ≥ 2) = 1 - 0.54036 - 0.34128

= 0.118

Therefore, we get the probability that the person will win 2 or more tickets to be 0.118

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Answer:

y = -x - 1 ;  y = 11x - 25

Step-by-step explanation:

y = x² + x

y-(-3) = m(x-2)

y = x²+x

y + 3 = mx - 2m

y = x² + x

y = mx - 2m - 3

x² + x = mx - 2m - 3

x² + x - mx + 2m + 3 = 0

x² + (1-m)x + 2m + 3 = 0

discriminant = m² + 1 - 2m -4 (2m + 3)

m² + 1 - 2m - 8m  - 12

m² - 10m - 11

the line is tangent so the discriminant must be equal to 0

m² - 10m - 11 = 0
(m-11)(m+1) = 0

m = 11

m = -1

y + 3 = -(x-2)

y+ 3 = -x + 2

y = -x + 2 - 3

y = -x - 1

y + 3 = 11(x-2)

y + 3 = 11x - 22

y = 11x -22 - 3

y = 11x - 25

After your grandmother makes a $5,000 deposit on your 18th birthday, the amount in the savings account can be calculated using compound interest. Assuming the account pays an interest rate of 7%, the amount in the account immediately after the deposit can be determined by applying the compound interest formula.

To calculate the amount in the savings account after the deposit on your 18th birthday, we can use the compound interest formula: A = P(1 + r/n)^(nt), where A represents the final amount, P is the principal (initial deposit), r is the interest rate, n is the number of times interest is compounded per year, and t is the number of years.

In this case, the initial deposit is $5,000, the interest rate is 7% (or 0.07 as a decimal), and the deposit is made on your 18th birthday, which means the time is 17 years. Since no information is given about the compounding frequency, let's assume it is compounded annually (n = 1).

Plugging in the values into the compound interest formula, we have A = 5000(1 + 0.07/1)^(1*17) = 5000(1.07)^17 ≈ $15,128.

Therefore, the amount in the savings account immediately after your grandmother makes the deposit on your 18th birthday is approximately $15,128, rounded to the nearest dollar.

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Find intersection of

BD , AD DC

Then

BD = BE^2 + ED^2

R = AD = abc/4S = 42• (2•28)•

Since Paul's English class is located in the same quadrant as the library, the coordinates of the English classroom include the following: B: (−4, 5).

In Mathematics, the translation of a geometric figure or graph to the right simply means adding a digit to the value on the x-coordinate (x-axis) of the pre-image or function.

On the other hand (conversely), 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 or function.

Since the library is located in the fourth quadrant in which the value on the x-coordinate (x-axis) is positive while the value on the y-coordinate (y-axis) is negative, we can reasonably infer and logically deduce that its coordinates would be translated to the right and then downward.

In conclusion, the coordinates of the English classroom would most likely have negative x-coordinate (x-axis) and a positive y-coordinate (y-axis);

Coordinates of the English classroom = (-4, 5).

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Complete Question:

The map shows the location of four places in a school.

A coordinate plane is shown. There is a point at 5, 2 labeled Front office. There is a point at negative 6, 4 labeled Gym. There is a point at negative 4, negative 3 labeled Auditorium. There is a point at 6, negative 4 labeled Library.

Paul's English class is located in the same quadrant as the library. Which of the following could be the coordinates of the English classroom?

A: (4, 5)

B: (−4, 5)

C: (−4, −5)

D: (4, −5)

Using it's definition, the probabilities are given as follows:

The probability of an event in an experiment is calculated as the number of desired outcomes in the context of the experiment divided by the number of total outcomes in the context of the experiment.

The total number of bulbs in this problem is given as follows:

6 + 9 + 5 = 20.

Six of them are red, hence the probability of a red bulb is:

p = 6/20 = 0.3 = 30%.

Nine of them are blue, hence the probability of a blue bulb is:

p = 9/20 = 0.45 = 45%.

Five of them are green, hence the probability of a green bulb is:

p = 5/20 = 0.25 = 25%.

The probability of a red or blue bulb is:

p = 0.3 + 0.45 = 0.75.

The probability of a blue or green bulb is:

p = 0.45 + 0.25 = 0.6.

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The normal approximation can be used in a two-sample test of proportions when the sample sizes are sufficiently large.

The rule of thumb is that each sample should have at least 10 successes and 10 failures. When these conditions are met, the sampling distribution of the difference in sample proportions can be approximated by a normal distribution with a mean equal to the difference in population proportions and a standard deviation calculated from the sample proportions. This approximation allows us to calculate probabilities and make inferences using the standard normal distribution. It is important to note that this approximation may not be accurate for small sample sizes, in which case exact methods such as the Fisher's exact test should be used instead. In summary, the normal approximation can be used in a two-sample test of proportions when the sample sizes are large enough and the conditions are met.

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Answer:

A)58 degrees

Step-by-step explanation:

You can find the answer by taking the arccos of 8/15. This would give you approximately 57.77 which rounds up to 58.

Check the picture below.

The volume of the cone is approximately 37.7 cubic units

What is volume?

A volume is simply defined as the amount of space occupied by any three-dimensional solid. These solids can be a cube, a cuboid, a cone, a cylinder, or a sphere. Different shapes have different volumes.

To find the volume of a cone, we use the formula:

V = (1/3) * π * r² * h

where π is the constant pi, r is the radius of the base of the cone, and h is the height of the cone.

Plugging in the given values, we get:

V = (1/3) * 3.14 * 3² * 4 ≈ 37.7

Therefore, the volume of the cone is approximately 37.7 cubic units (rounded to the nearest tenth).

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