ahhhhhh i have to do 4 of these pls helppp :

Answer:

100÷(20÷5)

Step-by-step explanation:

first find out how many chairs each worker made

20÷5=4

then divide 100 by 4 and that will give you 25

they would need 25 workers the equation that they should use is

100÷(20÷5)

Answer:

nine point two.....9.2

Answer:

280

Step-by-step explanation:

Answer:

140

Step-by-step explanation:

25% * x = 35

25/100 * x = 35

Multiplying both sides by 100 and dividing both sides by 25,

We have x = 35 * 100/25

x = 140

Answer: Number one is  20km. Number 2 is  I think 2.9 and number 3 ofc is 140. I'm not really sure if number 2 is correct but yeah.

Step-by-step explanation:

Answer:

C. Slope of Function A = 2 x Slope of Function B

Step-by-step explanation:

The slope of function A is the x-coefficient: 6.

The slope of function B is ...

... slope = (change in y)/(change in x) = (-2-4)/(-1-1) = -6/-2 = 3

6 is 2 times 3

If the p-value is greater than α, do not reject the null hypothesis and conclude that there is not enough evidence to support the claim that Consultant A has a higher population mean service rating.

a. The null hypothesis is that there is no difference between the population mean service ratings of the two financial consultants, and the alternative hypothesis is that the consultant with more experience has a higher population mean service rating.
b. The value of the test statistic is 1.63.
c. The p-value is 0.055. Using table 2 from appendix b, the values that bound the test statistic are 1.645 and -1.645. Since the test statistic falls within this range and the p-value is greater than the significance level of 0.05, we fail to reject the null hypothesis.
d. Therefore, we cannot conclude that there is a significant difference in the population mean service ratings of the two financial consultants. To draw a conclusion, compare the p-value to the given significance level (α). If the p-value is less than α, reject the null hypothesis and conclude that Consultant A has a higher population mean service rating than Consultant B.

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Triangle RST is reflected across the x-axis and translated 5 units to the left to form triangle R"S"T"

Transformation is the movement of a point from its initial location to a new location. Types of transformation are reflection, translation, rotation and dilation.

Triangle RST is reflected across the x-axis and translated 5 units to the left to form triangle R"S"T"

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Answer:

4) 3, -2, -8

5) -7

6) E

7) D

8) 5, -1, 34

Step-by-step explanation:

4) There are at least two prominent points on line EF: (0, -4) and (6, 5). From there, we can find the slope-intercept formula of it.

The slope: (5 + 4) / (6 - 0) = 9 / 6 = 3 / 2

The intercept: (0, -4)

So, we have y = 3/2x - 4.

-3/2x + y + 4 = 0

Multiply every term by 2.

-3x + 2y + 8 = 0.

But the question asks for A to be >0! Multiply everything by -1.

3x - 2y - 8 = 0

So, the values of A, B, and C, respectively, are 3, -2, -8.

5) There are at least two prominent points on line GH: (-9, 4) and (-1, 2). From there, we have...

The slope: (4 - 2) / (-9 + 1) = 2 / -8 = -1/4

y = -1/4x + b

2 = (-1/4 * -1) + b

2 = (1/4) + b

b = 1.75; or 1 and 3/4; or 7/4.

Then, we have our intercept: 7/4.

We have an equation in slope-intercept form: y = -1/4x + 7/4

1/4x + y - 7/4 = 0

Multiply everything by 4.

x + 4y - 7 = 0.

The value of C is -7.

6) Lines that are parallel to the y-axis are vertical lines, which means that the x-values never change. We are looking for an equation where x = 3. That is code letter E.

7) Lines perpendicular to the y-axis are horizontal lines, which means that the y-values never change. We are looking for an equation where y = -5. That is code letter D (y + 5 = 0; y = -5).

8) A line parallel to 5x - 8y + 12 = 0 would have the same slope as it.

5x - 8y + 12 = 0

-8y = -5x - 12

y = 5/8x + 3/2

So, the line should have a slope of 5/8.

3 = (5/8) * (-2) + b

3 = -10/8 + b

3 = -5/4 + b

b = 3 + 5/4

b = 4 and 1/4; 17/4.

y = 5/8x + 17/4

-5/8x + y - 17/4 = 0

Multiply all terms by 8.

-5x + y - 34 = 0

Multiply all terms by -1.

5x - y + 34 = 0.

The values of A, B, and C, respectively, are 5, -1, 34.

I REALLY hope this helps because my brain kinda hurts now XD Have a great day!

The value of the probability of choosing a green lollipop and a purple lollipop is, 8 / 45

We have to given that;

One bag contains 3 red lollipops and 2 green lollipops.

And, The other bag contains four purple lollipops and five blue lollipops.

Hence, The probability of choosing a green lollipop is,

P₁ = 2 / 5

And, The probability of choosing a purple lollipop is,

P₂ = 4 / 9

Thus, The value of the probability of choosing a green lollipop and a purple lollipop is,

P = P₁ ×  P₂

P = 2/5 × 4/9

P = 8/45

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Answer:

x = 25°

Step-by-step explanation:

3x + 2x + x + 30° = 180°

6x + 30° = 180°

6x = 150°

x =25°

=> 3x = 25 * 3 = 75°

=> 2x = 25 * 2 = 50°

=> x + 30° = 25° + 30° = 55°

Answer & Step-by-step explanation:

First, we have to subtract 3x² + 4x - 5 from 7x² + x + 9. Then we subtract 4x² - 3x from that difference.

(7x² + x + 9) - (3x² + 4x - 5)

Distribute the negative sign (-) to 3x² + 4x - 5

7x² + x + 9 - 3x² - 4x + 5

Combine like terms

4x² - 3x + 14

Now, we are going to subtract 4x² - 3x from this difference.

(4x² - 3x + 14) - (4x² - 3x)

Distribute the negative sign (-) to 4x² - 3x

4x² - 3x + 14 - 4x² + 3x

Combine like terms

14

So, after subtracting the first two polynomials and then subtracting 4x² - 3x from that difference, the final answer will be 14

Solution

Step 1

A)The domain refers to all real values of x for which the function is defined. The values of x for which the function is undefined are not a part of the domain. If you are given the equation then you can find the domain of that function by solving/ factorizing the denominator of the equation to find the zero(s) of the equation in the denominator. These values gotten are the values of x that will make the function undefined and hence are not part of the domain. Every other real value of x apart from these zero(s) obtained is part of the domain.

B)

Step 1

Factorize the denominator of the equation to find the zeroes of the equation

Step 2

Find the required factors to replace 13x and is equal to -90x²

Step3

Replace 13x with these factors

Step 4

Factorize the equation and find the values of x

Hence, the domain of the function is all real values of x except -3 and 5/6

a. the sampling distribution is  \(\sqrt{[(0.17 \times (1-0.17)) / n]}\)

b. The probability that the sample proportion is within 0.03 of the population proportion is 0.4101.

c. The probability that the sample proportion is within 0.03 of the population proportion for a sample of 200 households is 0.7738.

a. The sampling distribution of the sample proportion, \(\bar p\), can be approximated by a normal distribution with mean equal to the population proportion, p, and standard deviation equal to the square root of \([(p \times (1-p)) / n]\),

where n is the sample size.

Given that p = 0.17 and assuming a large enough sample size, we can use the formula to calculate the standard deviation of the sampling distribution:

Standard deviation = \(\sqrt{[(0.17 \times (1-0.17)) / n]}\)

b. To find the probability that the sample proportion will be within a certain range of the population proportion, we need to calculate the z-score for the lower and upper bounds of that range and then find the area under the normal curve between those z-scores.

Let's say we want to find the probability that the sample proportion is within 0.03 of the population proportion. This means we want to find

P(\(\bar p\)- p ≤ 0.03) = P((\(\bar p\)-- p) / \(\sqrt{[(p \times (1-p)) / n]}\) ≤ 0.03 / \(\sqrt{[(p \times (1-p)) / n]\)

We can use the standard normal distribution and z-scores to find this probability:

\(z_1\) = (0.03 / \(\sqrt{(0.17 \times (1-0.17)/n}\))

\(z_2\) = (-0.03 / \(\sqrt{(0.17 \times (1-0.17))/n}\))

We can find the probability that the z-score is between \(z_1\) and \(z_2\):

P(\(z_1\)≤ Z ≤ \(z_2\)) = P(-0.541 ≤ Z ≤ 0.541) = 0.4101

c. To answer part (c), we need to specify the sample size. Let's say we are taking a sample of 200 households.

Using the formula for standard deviation of the sampling distribution from part (a), we get:

Standard deviation = \(\sqrt{(0.17 \times(1-0.17)) / 200}\) = 0.034

Now we can repeat the same steps as in part (b) with this standard deviation:

\(z_1\) = (0.03 / 0.034)

\(z_2\) = (-0.03 / 0.034)

P(\(z_1\)≤ Z ≤ \(z_2\)) = P(-0.882 ≤ Z ≤ 0.882) = 0.7738

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The mean number of claims per policy is 1.4 and the sample variance and standard deviation are 0.956 and 0.977 respectively is the answer.

a) To find the mean number of claims per policy, we need to calculate the weighted average of the number of claims.

Number of claims: 0, 1, 2, 3, 4, 5, 6

Number of policies: 21, 13, 5, 4, 2, 3, 2

First, we calculate the product of the number of claims and the corresponding number of policies for each category:

0 claims: 0 * 21 = 0

1 claim: 1 * 13 = 13

2 claims: 2 * 5 = 10

3 claims: 3 * 4 = 12

4 claims: 4 * 2 = 8

5 claims: 5 * 3 = 15

6 claims: 6 * 2 = 12

Next, we sum up these products: 0 + 13 + 10 + 12 + 8 + 15 + 12 = 70

Finally, we divide the sum by the total number of policies (50) to find the mean:

Mean number of claims per policy = 70 / 50 = 1.4

Therefore, the mean number of claims per policy is 1.4.

b. To find the sample variance and standard deviation, we need to calculate the deviations from the mean for each category, square the deviations, and then calculate the average.

Deviation from the mean:

0 - 1.4 = -1.4

1 - 1.4 = -0.4

2 - 1.4 = 0.6

3 - 1.4 = 1.6

4 - 1.4 = 2.6

5 - 1.4 = 3.6

6 - 1.4 = 4.6

Square the deviations:

(-1.4)^2 = 1.96

(-0.4)^2 = 0.16

(0.6)^2 = 0.36

(1.6)^2 = 2.56

(2.6)^2 = 6.76

(3.6)^2 = 12.96

(4.6)^2 = 21.16

Now, we sum up these squared deviations:

1.96 + 0.16 + 0.36 + 2.56 + 6.76 + 12.96 + 21.16 = 46.92

To find the sample variance, divide the sum of squared deviations by the number of data points minus 1 (n-1):

Sample variance = 46.92 / (50 - 1) = 46.92 / 49 ≈ 0.956

To find the sample standard deviation, take the square root of the sample variance:

Sample standard deviation = √(0.956) ≈ 0.977

Therefore, the sample variance is approximately 0.956 and the sample standard deviation is approximately 0.977.

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The total cost  of he meat with tax and tip is $ 22.42

To calculate the total cost with tax and tip, we need to follow these steps:

multiply the meal cost by the tip rate. when  the tip rate is 18%, we have:

Tip amount = $19.00 * 0.18 = $3.42

Add the meal cost, sales tax, and tip amount to get the total cost:

Total cost = Meal cost + Sales tax + Tip amount

= $19.00 + $3.42

= $ 22.42

Therefore, the total cost with tax and tip is $22.42

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11.1% of porcelain tile has strength up to 185 per square inch, while 6% has strength of 206.4 per square inch.

a. To find the percent of its popular porcelain tile that will have breaking strengths at most 185 pounds per square inch, we can use the Z-score formula. The Z-score formula is Z = (x - μ) / σ. In this problem, x is 185, μ is 200, and σ is 6.2. Plugging these values into the formula, we get Z = -2.42. To find the percent of tiles that have a breaking strength of at most 185 pounds per square inch, we can use a Z-score table. Looking up -2.42 on the Z-score table, we get a probability of 0.011, or 11.1%.

Z = (x - μ) / σ.

x=185

μ =200

σ = 6.2

Z = -2.42

Hence, probability = 0.011, or 11.1%.

b. The strongest 6% of its popular porcelain tile will have a breaking strength of 206.4 pounds per square inch. To find this value, we can use the Z-score formula again. This time, we will use a positive Z-score of 1.645, which corresponds to a probability of 0.06. Plugging this value into the formula, we get,

x = μ + (Z * σ).

Thus, x = 200 + (1.645 * 6.2) = 206.4.

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The answer to the question is C, which is integers 4,5 or -4,-3.

Let's call the first integer x and the second integer x+1 (since they are consecutive).
According to the problem, we can set up the following equation:
x(x+1) = x + (x+1) + 19
We can simplify this equation by expanding the left side and combining like terms on the right side:
x^2 + x = 2x + 20
Now we can move all the terms to one side and get a quadratic equation:
x^2 - x - 20 = 0
We can factor this equation as (x-5)(x+4) = 0, which means the solutions for x are 5 and -4.
Therefore, the two consecutive integers are either 4,5 or -4,-3.
The long answer includes all the steps of solving the quadratic equation:
x^2 - x - 20 = 0
We can use the quadratic formula to solve for x:
x = (-b ± √(b^2 - 4ac)) / 2a
In this case, a=1, b=-1, and c=-20.
x = (1 ± √(1 - 4(1)(-20))) / 2(1)
x = (1 ± √81) / 2
x = (1 ± 9) / 2

The two solutions for x are 5 and -4.
Therefore, the two consecutive integers are either 4,5 or -4,-3.
The product of two consecutive integers is 19 more than their sum. To find the integers, let's represent them as x and x+1.

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Given:

A quadrilateral WXYZ has vertices W(3, −5), X(1, −3), Y(−1, −5), and Z(1,−7).

Rule of rotation is \(r_{(90^\circ, O)}(WXYZ)\).

To find:

The vertices after rotation.

Solution:

We know that, \(r_{(90^\circ, O)}(WXYZ)\) means 90 degrees counterclockwise rotation around the origin.

So, the rule of rotation is defined as

\((x,y)\to (-y,x)\)

Using this rule, we get

\(W(3,-5)\to W'(5,3)\)

\(X(1,-3)\to X'(3,1)\)

\(Y(-1,-5)\to Y'(5,-1)\)

\(Z(1,-7)\to Z'(7,1)\)

Therefore, the required vertices after rotation are W'(5,3), X'(3,1),Y'(5,-1) and Z'(7,1).

The standard deviation of the costs is 37 Dhs

The given mean is 173 and 3% of costs exceed 243. We have to calculate the standard deviation of the cost. Therefore, let's first start by calculating the z-score as follows;z-score formula = `(x - μ) / σ`z-score = `243 - 173 / σ`z-score = `70 / σ`We need to find the standard deviation of the costs. Since the z-score formula includes standard deviation, we can first calculate the z-score and then use it to calculate the standard deviation.Using the z-table, we can find the z-score for 3% = -1.88-1.88 = (243 - 173) / σσ = (243 - 173) / -1.88σ = -70 / -1.88σ = 37.23≈ 37The standard deviation of the costs is 37 Dhs. Hence, the correct option is as follows.Option D is the correct option.

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The number of miles in 4 weeks is 20 mules

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

Stone runs 1 mile five times a week

This means that the rate is

Rate = 1 mile * 5 per week

So, we have

Rate = 5 miles per week

For 4 weeks, we have

Distance = 5 * 4

Evaluate

Distance = 20 miles

Hence, the distance is 20 miles

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Therefore, the answer is option C: theta = pi/2 and theta = 3pi/2.

To determine when tan(theta) is undefined on the unit circle, we need to remember the definition of the tangent function.
Tangent is defined as the ratio of the sine and cosine of an angle. Specifically, tan(theta) = sin(theta)/cos(theta).

Now, we know that cosine can never be equal to zero on the unit circle, since it represents the x-coordinate of a point on the circle and the circle never crosses the x-axis. Therefore, the only way for tan(theta) to be undefined is if the cosine of theta is equal to zero.
There are two values of theta on the unit circle where cosine is equal to zero: pi/2 and 3pi/2.

At theta = pi/2, we have cos(pi/2) = 0, which means that tan(pi/2) = sin(pi/2)/cos(pi/2) is undefined.
Similarly, at theta = 3pi/2, we have cos(3pi/2) = 0, which means that tan(3pi/2) = sin(3pi/2)/cos(3pi/2) is also undefined.
Therefore, the answer is option C: theta = pi/2 and theta = 3pi/2.

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The range of values for θ and φ is such that they must not repeat in order to cover the entire sphere θ∈[0,π) and φ∈[0,2π).

The Bloch sphere representation, which bears Felix Bloch's name, is the outcome of the foregoing. This illustration is a unit 2-sphere with two mutually placed spheres at the north and south poles. In contrast, quantum bits cover the entire sphere, whereas these are the only conceivable states for the classical bit representation.

(Disclaimer: One could counter that since the classical bit is represented by voltages, the classical bit representation also contains the axis linking the two poles. As a result, the Bloch sphere illustrates that there is substantially more information involved in quantum bits. When the qubit is measured, one of the two poles is what remains. Exactly which pole is determined by the direction the arrow in the Bloch representation points.

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The coordinates of a point are written in the form:

Substitute the values of x and y of each given option to check if they satisfy the equation or not.

a)

x=2 and y=38

This point does not satisfy the equation.

b)

x=1 and y=-24

This point does not satisfy the equation.

c)

x=-1 and y=-12

This point satisfies the equation.

d)

x=-2 and y=-9

This point does not satisfy the equation.

Therefore, the only option which satisfies the given equation, is:

Answer:

252 cm²

Step-by-step explanation:

Find AB:

AB² = 41² - 40²

AB² = 81

AB = √81

AB = 9 cm

Area of the trapezium = ½(a + b) × h

Where,

a = 16 cm

b = 40 cm

h = 9 cm

Area = ½(16 + 40) × 9

Area = ½(56)×9

Area = 252 cm²

Answer:

2003.85

Step-by-step explanation:

365/2 * (3 + 1095) = 200385.

1 Dollar = 100 pennies

200385 pennies/100 = 2003.85

so you have $2003.85 in your account on the 365th day.

hope this helps :-)

Answer:

0

Step-by-step explanation:

m=y2-y1 / x2-x1

m= -1-1/-1-2

m=0/-3

m=0