Pls help due ASAP ....

Answer:

16%

Step-by-step explanation:

(174-150)/150= 0.16

0.16*100 = 16%

Answer:

Step-by-step explanation:

P/6

Using the normal distribution, the project completion time with a 75% certainty is of 42 weeks.

The z-score of a measure X of a normally distributed variable with mean \(\mu\) and standard deviation \(\sigma\) is given by:

\(Z = \frac{X - \mu}{\sigma}\)

For this problem, the parameters are given as follows:

\(\mu = 40, \sigma = \sqrt{9} = 3\)

The project completion time with a 75% certainty is the 75th percentile, which is X when Z = 0.675, hence:

\(Z = \frac{X - \mu}{\sigma}\)

0.675 = (X - 40)/3

X - 40 = 3 x 0.675

X = 42.

The project completion time with a 75% certainty is of 42 weeks.

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Answer:

x =  -0.8

Step-by-step explanation:

-10/-2 = 20

-10/8 = -0.8

Using proportions, it is found that Sylvia needs to order 324 square feet.

The rule of three is:

1 square yard - 9 square feet

36 square yards - x square feet

Applying cross multiplication:

\(x = 9 \times 36 = 324\)

Sylvia needs to order 324 square feet.

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Answer: To determine the marginal cost of the third taco for Jeremy, we need to compare the cost of buying it individually to the cost of buying it as part of the value meal.

Buying two tacos individually:

Buying the value meal with three tacos:

To calculate the marginal cost, we subtract the cost of buying the value meal from the cost of buying two tacos individually:

The negative value indicates that buying the value meal is more cost-effective than buying the third taco individually. Therefore, the marginal cost of the third taco for Jeremy would be $0 (option A).

Answer:

The answer is the second one

Step-by-step explanation:

First you go and you order each answer into the correct categories until every one of them are ordered. If they dont fit correctly then you just go onto brainly and report someone elses answer for no reason. i hope this helped :D

The equation of the line would be y = (-3/4)x + 5.

What is the slope-point form of the line?

For the line having slope "m" and the point (x1, y1) the equation of the line passing through the point (x1, y1) having slope 'm' would be

                      y - y1 = m(x - x1)

The given equation is \(y=-\frac{3}{4}x-17\)

The required line is parallel to the given line.

and we know that the slopes of the parallel lines are equal so the slope of the required line would be m = -3/4

And the required line passes through (8, -1)

so by using slope - point form of the line,

      y - (-1) = (-3/4)(x - 8)

      y + 1 = (-3/4)x - (-3/4)8

       y + 1 = (-3/4)x + 24/4

       y = (-3/4)x + (12/2 - 1)

       y = (-3/4)x + 5

Hence, the equation of the line would be y = (-3/4)x + 5.

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So, Lana gave away 26.32% of he Pokemon cards  to her little brother.

To find the percentage of cards Lana gave away, we can use the formula:(Quantity given away / Total quantity) * 100.

In this case, Lana gave away 125 cards out of her total collection of 475 cards.Plugging these values into the formula, we have:

(125 / 475) * 100 = 0.2632 * 100 = 26.32%.

Lana gave away 26.32% of her Pokemon cards to her little brother.

Alternatively, we can calculate the percentage by subtracting the remaining cards from the total and finding the ratio:

Percentage given away

= (Cards given away / Total cards) * 100

= (125 / 475) * 100

= 26.32%.

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Answer:

-88x + 10y

Step-by-step explanation:

-5x+3y= -93x+7y=23

we cannot do anything to numbers with unlike signs so we will do this

23=-5x+3y=-93x+7y

now we will take the numbers with like signs to one place like this

23=-5x+93x+3y+7y

now we can solve this

- x + = -

+ x+=+

-x-=-

23= 88x+10y ANSWER

Answer:

x = 3 and y = 2

Step-by-step explanation:

-5*3+3*2=-9 and 3*3+7*2+23

BLACK: The arccosine of 1, denoted as cos^(-1)(1), is equal to 0 radians or 0 degrees.

The arccosine function, cos^(-1)(x), returns the angle whose cosine is equal to x. In this case, we are given x = 1. The cosine function has a range of -1 to 1, so when x = 1, the angle must be 0 radians or 0 degrees. This is because the cosine of 0 radians (or 0 degrees) is equal to 1. Therefore, the arccosine of 1 is 0 radians or 0 degrees.

In trigonometry, the arccosine function is the inverse of the cosine function. It is useful for finding angles when given the cosine of those angles. The arccosine of 1 is a special case, as it represents the maximum value of the cosine function.

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Answer:ok

Step-by-step explanation:

The appropriate test statistic is the z-test statistic for two independent proportions.

We have,

The concept used is the comparison of two independent proportions and the corresponding test statistic, which is the z-test statistic for two independent proportions.

To determine the appropriate test statistic for comparing the proportions of teens and adults using their phone as alarm clock, we can consider the scenario of comparing two independent proportions.

In this case, where we are comparing two groups (teens and adults) and their respective proportions, an appropriate test statistic would be the

z-test statistic for two independent proportions.

Thus,

The appropriate test statistic is the z-test statistic for two independent proportions.

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Answer:

This is an example of task abstraction, which refers to identifying the fundamental goals and objectives of a data visualization task by abstracting it from the specific context and formulating it in general terms. In this case, the task abstraction is to visualize the correlation between two numeric variables.

Step-by-step explanation:

q - 10 = 6(r+1)

q = 6r + 1 + 10

q = 6r + 11

Answer:

216

Step-by-step explanation:

.48 * 450 = 216

Answer:

There are 216 girls in that school.

Step-by-step explanation:

hope this helps! have a great day.

Answer:

third

Step-by-step explanation:

Answer:

11 and 12

Step-by-step explanation:

the square root of 125 is 11.18

In a two population proportions problem, the use of individual proportions for X and Y (i.e., p_x, q_x, and p_y, q_y) is used for confidence intervals instead of the "common p" used in hypothesis testing.

The reason for this is that in hypothesis testing, we are assuming that the two population proportions are equal (i.e., p_x = p_y = p), which means that we can estimate p using the combined sample proportion. However, in a confidence interval problem, we are interested in estimating the difference between the two population proportions, and using the combined sample proportion to estimate p would not be appropriate. Instead, we use the individual sample proportions for X and Y to construct separate confidence intervals for each population proportion, which we can then use to estimate the difference between them.

In other words, when constructing a confidence interval for the difference in proportions, we are interested in estimating the variability of each population proportion separately, and not the variability of the combined sample proportion. This is why we use the individual sample proportions for X and Y in constructing confidence intervals, rather than the common sample proportion used in hypothesis testing.

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10 and 13 are the measure of the values of x and y respectively

The given diagram is a parallelogram with unknown values x an y.

Since the measure of sum of angles in a triangle is 180 degrees, hence we will take the measure of the angles in the triangle EFY to have:

70 + 7x - 5 + 45 = 180

110 + 7x = 180

7x = 180 - 110

7x = 70

x = 10

Similarly for the triangle EDY;

45 + 70 + 5y = 180

115 + 5y = 180

5y = 180 - 115

5y = 65

y = 13

Hence the measure of the values of x and y are 10 and 13 respectively

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i hope that this helps :)

The true statements about the given circle's equation are:

(B) The circle's center is on the x-axis.

(A) The circle has a radius of three units.

(E) This circle's radius matches that of the circle whose equation is x2 + y2 = 9.

A mathematical equation is a formula that uses the equals sign to represent the equality of two expressions.

For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.

So, the circle's standard equation is written as:

x² + y² + 2gx + 2fy + C = 0

An equation for a circle is:

x² + y² – 2x – 8 = 0

Find the circle's center:

2gx = -2x

2g = -2

g = -1

Similarly:

2fy = 0

f = 0

Centre = (-(-1), 0) = (1, 0)

This demonstrates that the circle's center is on the x-axis.

r = radius = √g²+f²-C

radius = √1²+0²-(-8)

radius =√9 = 3 units

The circle has a radius of three units.

The radius of the circle where x2 + y2 = 9 is written as:

r² = 9

r = 3 units

As a result, this circle's radius matches that of the circle whose equation is x2 + y2 = 9.

Therefore, the true statements about the given circle's equation are:

(B) The circle's center is on the x-axis.

(A) The circle has a radius of three units.

(E) This circle's radius matches that of the circle whose equation is x2 + y2 = 9.

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Complete question:
Consider a circle whose equation is x2 + y2 – 2x – 8 = 0. Which statements are true? Select three options.

a. The radius of the circle is 3 units.

b. The center of the circle lies on the x-axis.

c. The center of the circle lies on the y-axis.

d. The standard form of the equation is (x – 1)² + y² = 3.

e. The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.

A cat would probably have consumed about 6 meals if its activity level had been around 9.

A linear equation is a relation between two variables in which one is dependent on the other in such a manner that changing one of the variables causes the change in another variable "linearly".

The above statement can be represented mathematically as,

y=mx+b

where m represents the rate of the change and c is the initial value of the equation.

Let x stand for activity level and y for the number of meals consumed. Therefore:

y = 0.23x + 4.1

For an activity level of 9, we will put x as 9:

y = 0.23(9) + 4.1 = 6.17

Thereby, we can say that If a cat had an activity level of about 9, then it's likely to have eaten about 6 meals.

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The parametric equations x = t and y = t³ + 3 can be rewritten as the Cartesian equation y = x³ + 3. This equation represents a cubic curve where the y-coordinate is equal to the cube of the x-coordinate plus 3.

To eliminate the parameter t and express the parametric equations x = t and y = t³ + 3 as a Cartesian equation, we can substitute the expression for x into the equation for y.

From the equation x = t, we have t = x. Substituting this value into y = t³ + 3, we get y = x³ + 3.

Therefore, the parametric equations x = t and y = t³ + 3 can be rewritten as the Cartesian equation y = x³ + 3.

This means that any point (x, y) that satisfies the parametric equations also satisfies the Cartesian equation, and vice versa. The Cartesian equation represents a cubic curve, where the y-coordinate is equal to the cube of the x-coordinate plus 3.

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the correct  is not provided among the given options. The pressure at the bottom of the tank when the elevator moves downward at an acceleration of 2 m/s³ is 0.8 kPa.

To determine the pressure at the bottom of the tank, we can use the concept of fluid pressure, which is given by the equation:

Pressure = Density x Gravity x Height

Given:

Density of water = 1000 kg/m³ (assuming water density)

Gravity = 9.8 m/s²

Height = 0.40 m (depth of water)

We need to find the pressure change as the elevator accelerates downward at 2 m/s³. Since the acceleration affects the apparent weight of the water in the tank, we need to consider the net force acting on the water.

The net force is given by the equation:

Net Force = Mass x Acceleration

The mass of the water is determined by its volume and density:

Mass = Volume x Density

The volume of water is given by the area of the base of the tank (which we assume to be equal to the area of the elevator floor) multiplied by the height:

Volume = Area x Height

Now, we can calculate the mass of water:

Volume = Area x Height = Height (since the area is canceled out)

Mass = Density x Volume = Density x Height

Next, we can calculate the net force on the water:

Net Force = Mass x Acceleration = Density x Height x Acceleration

Finally, we can determine the pressure change at the bottom of the tank:

Pressure Change = Density x Height x Acceleration

Plugging in the given values:

Pressure Change = 1000 kg/m³ x 0.40 m x 2 m/s³

Calculating this expression:

Pressure Change = 800 Pa

Since the question asks for the pressure, we need to convert this value from pascals (Pa) to kilopascals (kPa):

Pressure = Pressure Change / 1000 = 800 Pa / 1000 = 0.8 kPa

Therefore, the correct solution is not provided among the given options. The pressure at the bottom of the tank when the elevator moves downward at an acceleration of 2 m/s³ is 0.8 kPa.

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Answer:

D hope this helps :)

Step-by-step explanation:

Your question has been heard loud and clear

Passive voice

The matter will be looked into by him.

Thankyou