Write 0.369 as a percent.

Step-by-step explanation:

Total Angle in a triangle is 180°

so D = 140 + 25 = 165°

D = 190° - 165° = 15°

Your answer is 15°.

Answer:

angle d = \(\boxed{15}^ {\circ}\)

Step-by-step explanation:

The angles in a triangle add up to 180°.

∴ ∠d + 25° + 140° = 180°

⇒ ∠d + 165° = 180°

⇒ ∠d = 180° - 165°

⇒ ∠d = 15°

Answer:

B

Step-by-step explanation:

the second option!

Answer:

It would be 360/n

Step-by-step explanation:

Every shape's exterior angles must combine to form a 360* shape (meaning "full-circle" even though they are not circles). So you must divide 360 by the number of angles a shape has.

Ex #1: A Square has four angles, so the equation to finding the degrees of each exterior angle is 360/4, which equals 90. So 90* per exterior angle.

Ex #2: A Decagon has 10 angles, so the equation to finding the degrees of each exterior angle is 360/10, which equals 36. So 36* per exterior angle.

Answer:

Step-by-step explanation:

25-3x=40

25-25-3x=40-25

-3x=15

-3x/-3=15/-3

x=-5

The time-series model that assumes that demand in the next period will be equal to the most recent period's demand is A) Naive approach.

This model is based on the simplest assumption of all, that the next period's demand will be equal to the current period's demand. It is called the naive approach because it assumes no underlying pattern in the data and provides a baseline prediction. The formula for the naive approach is as follows:

y(t) = y(t-1) where y(t) represents the demand in period t and y(t-1) represents the demand in the previous period.

Although this model is simple, it is often used as a benchmark for comparison with more complex models and can provide reasonable results for stable demand patterns.

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The skip interval should be 40 if the sampling frame has 2000 names and the desired sample size is 50.

Systematic sampling is a type of sampling which uses the probability method where researchers select members of the group or population at a regular interval.

To determine the skip interval, it is necessary to first determine the sample size. Then the skip interval can be determined by dividing the total population by the target/desired sample size. Therefore;

skip interval = population / target sample size

Substituting the given values;

skip interval = 2000 / 50

skip interval = 40

Hence, the skip interval is calculated to be 40 if the frame has 2000 names and the desired sample size is 50.

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Answer:

This is a random thing but is it -24

Step-by-step explanation:

To estimate the area under the graph of f(x) = 3√x from x = 0 to x = 4 using four approximating rectangles, we can divide the interval [0, 4] into four subintervals of equal width and calculate the area of each rectangle using either the right endpoints or the left endpoints.

(a) Using right endpoints:

The width of each rectangle is Δx = (4 - 0) / 4 = 1.

The right endpoints for the four subintervals are x = 1, 2, 3, and 4.

We can calculate the height of each rectangle by evaluating f(x) = 3√x at the right endpoints:

f(1) = 3√1 = 3

f(2) = 3√2

f(3) = 3√3

f(4) = 3√4 = 6

The area of each rectangle is then the product of the width and the height.

R1 = 1 * 3 = 3

R2 = 1 * f(2)

R3 = 1 * f(3)

R4 = 1 * 6

To estimate the total area, we sum up the areas of the four rectangles:

R4 = R1 + R2 + R3 + R4

(b) Using left endpoints:

Similar to part (a), the width of each rectangle is Δx = (4 - 0) / 4 = 1.

The left endpoints for the four subintervals are x = 0, 1, 2, and 3.

We can calculate the height of each rectangle by evaluating f(x) = 3√x at the left endpoints:

f(0) = 3√0 = 0

f(1) = 3√1 = 3

f(2) = 3√2

f(3) = 3√3

The area of each rectangle is the product of the width and the height.

L1 = 1 * 0 = 0

L2 = 1 * f(1)

L3 = 1 * f(2)

L4 = 1 * f(3)

To estimate the total area, we sum up the areas of the four rectangles:

L4 = L1 + L2 + L3 + L4

Now, to determine whether the estimates are underestimates or overestimates, we compare them to the actual area under the curve.

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The standard error is 0.447.

Mean is defined as the average of given numbers i.e. sum of all numbers divided by the total number of numbers. The Mean is denoted as m. Standard deviation is the measure which it shows the variation from the mean exists or not. The standard deviation is denoted as σ. The Standard deviation of the sample distribution is known as standard error.

The Standard error is the measure in which it measures the accuracy of sample distribution by using standard deviation. The Standard error is denoted as SE.

According to the given problem,  n = 100 and σ = 10

Standard error(SE) =  σ /√\(\sqrt{n}\)

                               =   10 / \(\sqrt{500}\)

                               =   10 / 22.36

                        SE   =   0.447

Therefore, the standard error of the sample mean is 0.447 if n = 500.

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The complete question is

A random sample of size n is selected from a population with a standard deviation of 10. what is the standard error of the sample mean if n = 500?

a. 0.235

b. 0.447

c. 0.548

d. 0.612

The distance traveled by the hiker is 22.464 km = 22.464 × 1000 = 22464 m.  Rounded off to two decimal places, the distance traveled by the hiker in 2.6 hours is 6.24 km.

The distance traveled by the hiker in a time of 2.6 hours is 6.24 km.

Given data: Average speed of the hiker = 2.4 m/s, Time taken by the hiker to travel = 2.6 hours

First, we need to convert the average speed from m/s to km/h.1 m/s = 3.6 km/h

Therefore, the average speed of the hiker = 2.4 m/s × 3.6 = 8.64 km/h

Now, we can use the formula distance = speed × time to find the distance traveled by the hiker.

Distance = Speed × Time

Distance = 8.64 km/h × 2.6 h = 22.464 km

However, the distance is required in kilometers, not in meters.

Therefore, we convert km to meters.1 km = 1000 m

Hence, the distance traveled by the hiker is 22.464 km = 22.464 × 1000 = 22464 m.

To convert the above value to kilometers, we need to divide it by 1000 (since 1 km = 1000 m).Distance in kilometers = Distance in meters ÷ 1000Distance in kilometers = 22464 m ÷ 1000 = 22.464 km

Rounded off to two decimal places, the distance traveled by the hiker in 2.6 hours is 6.24 km.

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Answer:

Step-by-step explanation:

The question requires you to substitute x=5 into the expression, 3x-2.

The expression, therefore becomes:

3(5)-2

15-2

=13

Answer:

13

Step-by-step explanation:

If x equals 5 then the new equation would be

3(5)-2

3*5=15

so

15-2

which is 13

Answer:

1. x ≈ 15,73

P = 104,96

.

2. x ≈ 50,51

P = 136,26

.

3.

\( \cos( \alpha ) = \frac{ \sqrt{3} }{3} \)

P ≈ 24,88

Step-by-step explanation:

1.

Use trigonometry:

\( \cos(70°) = \frac{x}{46} \)

Cross-multiply to find x:

\(x = 46 \times \cos(70°) ≈15.73\)

In order to find the perimeter, we have to know all three side lengths of the triangle

Let's find the third one by using the Pythagorean theorem:

\( {bc}^{2} = {ab}^{2} - {ac}^{2} \)

\( {bc}^{2} = {46}^{2} - ({15 .73})^{2} = 1868.5671\)

\(bc > 0\)

\(bc = \sqrt{1868.5671} ≈43.23\)

Now, we can find the perimeter (the sum of all side lengths):

P = AB + BC + AC

P = 46 + 43,23 + 15,73 = 104,96

.

2.

\( \tan(29°) = \frac{28}{x} \)

\(x = \frac{28}{ \tan(29°) } ≈50.51\)

\( {ab}^{2} = {ac}^{2} + {cb}^{2} \)

\( {ab}^{2} =( {50.51})^{2} + {28}^{2} = 3335.2601\)

\(ab > 0\)

\(ab = \sqrt{3335.2601} ≈57.75\)

P = 57,75 + 28 + 50,51 = 136,26

.

3.

\( \cos( \alpha ) = \frac{ac}{ab} \)

\( \cos( \alpha ) = \frac{6}{6 \sqrt{3} } = \frac{ \sqrt{3} }{3} \)

\(p = 6 + 6 \sqrt{2} + 6 \sqrt{3} ≈24.88\)

Answer:

first equation and second equation

Step-by-step explanation:

it is more easier because both of them have the same y

Answer:

Use equation (1) and equation(2) and eliminate 4y+z

Step-by-step explanation:

3x-4y+z=-5     ...(1)

6x-4y+z=1        ...(2)

x+y+z=6          ...(3)

First, you find the equation that you can use the elimination method on;

there are multiples of them.

However, I would use equation (1) and equation(2) and eliminate 4y+z :

 3x-4y+z=-5

- 6x-4y+z=1  

         -3x=-6

            x=2

As you can see, both the terms with y and z are eliminated in one step, exposing the variable x.

From here is just my advice:

There are multiple ways for you to answer this question. In math, the process may sometimes not matter if the answer was correct. Nevertheless, you should try finding one way that fits you or makes it easier to solve. I personally think that how I have been trying this helped me later when math got more complicated. (Also, it was fun for me to find another way that I was not taught of)

GOOD LUCK!! and I HOPE THIS HELPS YOU!!!!

The number of players the team can bring to the tournament would be = 24 players

The softball game is the type of game that involves two teams which is made up of 9. - 10 players.

The total amount of money raised by a softball team=

$2089.50

The amount of money spent on rented bus = $1087.50

The amount left after rent deductions= 2,089.50 - 1,087.50 = 1,002

The amount budgeted for meals for each player= $41.75

The number of players that would be brought for tournament= 1,002/41.75

= 24 players.

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Answer:

32 bro its so easy totally

Step-by-step explanation:

We can expect 30 guests to receive free admission out of the 1500 guests expected this weekend.

To determine how many guests can be expected to receive free admission, we need to use the given information about the ratio of guests with coupons to guests without coupons. We can do this by setting up a proportion and solving for the unknown variable.

Let x be the number of guests we can expect to receive free admission.
1/50 = x/1500

Cross-multiplying gives us:
50x = 1500

Dividing both sides by 50 gives us:
x = 30

Therefore, we can expect 30 guests to receive free admission out of the 1500 guests expected this weekend.

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Answer:

The value of this car is decreasing at a rate of 7%

The purchase price of the car is $23,400

Explanation:

The general equation of a value of a commodity over some time period can be shown as follows:

where :

V is the value at a certain year t

I is the initial or purchase value

r is the rate of increase or decrease

t is the time in years

It should be understood that if 1 + r is less than 1, then the value is decreasing over the years

Let us get the rate:

r is negative and that means there is a decrease at a rate of 7% (7% as a fraction is 7/100) yearly

Now, let us answer the questions

The value of this car is decreasing at a rate of 7%

The purchase price of the car is $23,400

By applying the Schroder-Bernstein theorem, we can conclude that (0,1) and R have the same cardinality.

To show that (0,1) and R have the same cardinality, we can apply the Schroder-Bernstein theorem, which states that if there exist injective functions from set A to set B and from set B to set A, then A and B have the same cardinality.

First, we can define a function from (0,1) to R by using a bijection. For example, we can use the function f(x) = tan[(πx - π/2)].

This function maps each value in the interval (0,1) to a unique real number in R. Since the tangent function is injective in the interval (-π/2, π/2), the function f(x) is also injective.

Next, we can define a function from R to (0,1) by using the inverse of the tangent function. For example, we can use the function g(x) = (π/2 + arctan[x])/π.

This function maps each real number to a unique value in the interval (0,1). The function g(x) is also injective since the inverse of the tangent function is injective.

By applying the Schroder-Bernstein theorem, we can conclude that (0,1) and R have the same cardinality.

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The values of x that provide meaningful predictions for the output value y are given as follows:

c. Prediction values are meaningful only for X-values in (or close to the range of the original data.

Regression equations are built from a sample of a data-set, and are used to model the entire data.

Depending on the behavior of the data, the regression equation can be linear, quadratic, logistic, exponential, and so on...

These regression equations are not valid for all values of the input x, some conditions are given as follows:

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Answer:

233.37

Step-by-step explanation:

so between each gondola is 20.95 so you will multiply it by 35 not 36 (because between the first you go round and come back to the same first you started so no space between first and last) then get circumference as 733.25 using

\(c = \pi \: d\)

you get diameter

To determine if a polynomial graph is positive or negative, you need to look at the sign of the leading coefficient of the polynomial. If the leading coefficient is positive, the graph will be positive.

If the leading coefficient is negative, the graph will be negative. This is because the highest degree of the polynomial will determine the sign of the graph as the graph will either be increasing (positive) or decreasing (negative). To determine the leading coefficient, look at the polynomial expression and identify the term with the highest degree. The sign of this term will be the sign of the graph. For example, if the highest degree is 3, then the term would be ax^3, and the graph will be positive if a is positive, and negative if a is negative.

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Answer:

for each quart of yogurt, there needs to be 3/4 or 0.75 of a cup of sugar.

we know this since the ratio for cups of sugar to quarts of yogurt is 3:4. which means that for each ONE quart of yogurt there needs to be 3/4 or .75 cups of sugar

Answer:

Step-by-step explanation:

System as per the graphed lines:

The are two solutions.

Solve by substitution.

Substitute y into second equation:

Find y:

The best estimate is x = 6.8 and y = 2.1

Correct choice is A

Answer:

200+(50x) x = months

Step-by-step explanation:

the start up is 200, every month x han has to pay 50

total cost = 200+(50x)

If below assumptions are not met, then the validity of the confidence interval may be compromised, and alternative methods may need to be used to estimate the mean increase in blood pressure.

In statistics, sampling is the process of selecting a subset of individuals or objects from a larger population for the purpose of studying or estimating certain characteristics of the population. The subset of individuals or objects is known as a sample.

Sampling is often used when it is impractical or impossible to collect data on the entire population. By studying a representative sample, statisticians can make inferences about the population as a whole with a certain level of confidence.

In order for a 95% confidence interval for the mean increase in blood pressure to be valid, the following assumptions must be made:

If these assumptions are not met, then the validity of the confidence interval may be compromised, and alternative methods may need to be used to estimate the mean increase in blood pressure.

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Answer:

1/4x+1/4y=?

Step-by-step explanation:

The distance between the Woozy Wheel and the Roller Rail is 13 units.

To determine the distance between the Woozy Wheel and the Roller Rail, we can use the distance formula in the coordinate plane.

The coordinates of the Woozy Wheel are (-14, 1), and the coordinates of the Roller Rail are (-2, -4).

Using the distance formula, the distance (d) between two points (x₁, y₁) and (x₂, y₂) is given by:

d = √((x₂ - x₁)² + (y₂ - y₁)²)

Substituting the coordinates of the Woozy Wheel and the Roller Rail into the formula:

d = √((-2 - (-14))² + (-4 - 1)²)

= √(12² + (-5)²)

= √(144 + 25)

= √169

= 13

Therefore, the distance between the Woozy Wheel and the Roller Rail is 13 units.

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To calculate the standard error (SE) for the percentage of young adults who favor gay marriage, we need to consider the sample size and the proportion of individuals in the sample who favor gay marriage.

The formula for calculating the standard error (SE) of a sample proportion is SE = sqrt((p * (1 - p)) / n), where p is the sample proportion and n is the sample size.

In this case, the sample proportion is given as 73% or 0.73, and the sample size is 321 young adults. Substituting these values into the SE formula, we get SE = sqrt((0.73 * (1 - 0.73)) / 321).

To calculate the SE, we first calculate (0.73 * (1 - 0.73)) to get 0.1979. Dividing this value by the sample size of 321 and taking the square root, we find that the SE for the percentage of young adults who favor gay marriage is approximately 0.0211.

Therefore, the standard error (SE) for the percentage of young adults who favor gay marriage, based on the CBS news poll data, is approximately 0.0211 or 2.11%. The SE provides an estimate of the variability or margin of error associated with the sample proportion.

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The area of the triangle is 59.6\(m^2\)

Now, According to the question:

The area of a triangle is defined as the total region that is enclosed by the three sides of any particular triangle. Basically, it is equal to half of the base times height, i.e. A = 1/2 × b × h.

In the question, Area unit is not mentioned.

But i take the unit in meter.

Now, We have the given data is:

In triangle HPK:

K = 8 m

P = 14.9 m

To find the area of triangle.

We know that :

Area of Triangle is  = 1/2 × b × h.

A  = 1/2 × 8 × 14.9

A = 59.6 \(m^2\)

Hence, The area of the triangle is 59.6

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The equation, rearranged to isolate c, is: c = (a + bd) / b

In order to isolate c, we need to get c by itself on one side of the equation. Here's how we can do that:

First, we can distribute the b to get:
a = bc - bd

Next, we can add bd to both sides of the equation:
a + bd = bc

Finally, we can divide both sides by b to isolate c:
(a + bd) / b = c

The equation, rearranged to isolate c, is: c = (a + bd) / b

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