halla los valores de "x y "y" en cada caso, y todos los ángulos de las figuras​

Answer:

which number to solve, it kinda seem difficult

The diameter of the wheel of a unicycle is 0.7 m. Elaine managed to cycle in 70.4 meters.

A circle's diameter cuts through the centre and extends from edge to edge, in contrast to a circle's radius, which extends from center to edge. Essentially, a circle is divided in half by its diameter.

The circle's diameter is determined by the length of the line drawn through its center and stopping at two locations on its rim.

The radius of a circle is the separation between its center and any point on its edge. The radius is equal to the diameter in half, or 2r = d. A chord is the section of a line that connects two points on a circle.

Given that,

Wheel Diameter = 0.7 m

Wheel Radius (r) = 0.7 m / 2 = 0.35 m

For one rotation of the wheel, the distance travelled = circumference of the wheel.

So, circumference = 2 × π × radius (r)

or, circumference = 2 × π × 0.35

or, circumference = 2.1991148575 m

It is also given that, Elaine tries to ride the unicycle and manages to go in a straight line for 32 full revolutions before falling off.

Thus, distance travelled with 32 full revolutions of the wheel:

Distance = 32 x 2.1991148575 m

Distance in meters = 70.37167544 m

Approximately = 70.4 m

Therefore, Elaine managed to cycle 70.4 meters.

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Hence, 96 kilometers separate the two tourism destinations in reality as it is a proportion to determine the real distance (in kilometers).

The actual distance is the measurement in feet between the blast site and the closest residence, public structure, school, church, or other commercial or institutional structure that is not owned or leased by the perpetrator of the blast.

Given :

To find the actual distance between the two tourist attractions, we need to use the scale given in the problem.

The scale of the map is 3 inches: 2 km.

We can use this scale to convert the distance on the map (5-5-144 inches) to the actual distance.

First, we need to convert the distance on the map from inches to km. To do this, we divide the distance on the map by the number of inches per km:

1 km = 1,000,000 microns

1 inch = 25,400 microns

1 km = 39.37 inches

So, 5-5-144 inches = (5 x 39.37) + (5 x 39.37) + 144 = 314.96 + 314.96 + 144 = 774.92 inches

Next, we can use the scale to convert the distance on the map from inches to km:

3 inches: 2 km

774.92 inches : x km

where x is the actual distance we are trying to find.

We can solve for x by cross-multiplying and simplifying:

3x = (774.92 x 2) / 2.54

3x = 60929.92 / 2.54

3x = 24000

x = 8000 km

Therefore, the actual distance between the two tourist attractions is 8000 km.

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Answer:

20

Step-by-step explanation:

The length of the side a , to the nearest 10th of a centimeter is 75cm

It is important to note that the sum triangle theorem states that the sum of the interior angles of a triangle is equal to 180 degrees.

Then, we have;

m< A + m< B+ m < C = 180

substitute the values, we have;

m < A = 180 - 154 - 13

subtract the values

m < A = 13 degrees

Using the sine rule, we have that;

sin A/a = sin B/b = sin C/c

Where; the capital letters are the angles and the small letters are the sides.

We have;

sin A/a = sin C/c

substitute the values

sin 13/a = sin 13/75

cross multiply

a = sin 13 × 75/sin 13

a = 75cm

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Answer:

the answer is 2500

Step-by-step explanation:

10 ^3 =1000

next you multiply 1000 x 2.5 = 2500

Answer:

y - 5 = -1/6 (x - 4)

Step-by-step explanation:

y = 6x - 1          y = -1/6x + b

y - 5 = -1/6 (x - 4)

The mass of a 2018 Olympic gold medal in hectograms is 58.6 hg.

First, we need to know the mass of the Olympic gold medal in grams. According to the question, the mass of an Olympic gold medal is 586 grams.

To convert grams to hectograms, we need to divide the mass in grams by 100. This is because there are 100 grams in 1 hectogram.

To do the division, we can use a calculator. Dividing 586 by 100 gives us 5.86.

The answer we get is in hectograms, so we can write it as 5.86 hg. This means that the mass of a 2018 Olympic gold medal is 5.86 hectograms.

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Answer:

623

hope this helped?

The expected value of y is 120 and the variance of y is 460.

Using the formula for the expected value of a normal distribution, we have:

E(x1) = 3, E(x2) = 5, E(x3) = 9, and E(11) = 11

a. To find the expected value of y, we can use the linearity of expectation:

E(y) = E(3x1) + E(5x2) + E(9x3) + E(11)

Therefore, E(y) = 3(3) + 5(5) + 9(9) + 11 = 3 + 25 + 81 + 11 = 120

b. To find the variance of y, we can again use the linearity of expectation and the formula for the variance of a normal distribution:

Var(y) = Var(3x1) + Var(5x2) + Var(9x3)

Since the x1, x2, and x3 variables are independent, we have:

\(Var(3x1) = (3^2)(2^2) = 36, Var(5x2) = (5^2)(2^2) = 100 , and Var(9x3) = (9^2)(2^2) = 324\)

Therefore, Var(y) = 36 + 100 + 324 = 460

In summary, the expected value of y is 120 and the variance of y is 460.

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a) The sampling distribution of the mean.

b) Mean of the sampling distribution of the mean is $1,596 and the standard error of the sampling distribution of the mean is $20.83 (SE = σ/√n = 250/√144 = 20.83)

c) The percent of sample means for a sample of 144 college students that is greater than $1,700 is 0.01%.

d) The probability that sample means for samples of size 144 fall between $1,500 and $1,600 is 72.66%.

e) The sample mean below which we can expect to find the lowest 25% of all the sample means is $1,561.58.

a) The sampling distribution of the mean.

b) The mean of the sampling distribution of the mean is equal to the population mean, which is $1,596. The standard error of the sampling distribution of the mean is equal to the standard deviation of the population divided by the square root of the sample size. Therefore, the standard error is

SE = σ/√n = 250/√144 = 20.83

where σ is the population standard deviation, n is the sample size, and SE is the standard error of the mean.

c) To find the percent of sample means for a sample of 144 college students that is greater than $1,700, we need to find the z-score corresponding to a sample mean of $1,700. The formula for the z-score is

z = (x - μ) / (σ / √n)

where x is the sample mean, μ is the population mean, σ is the population standard deviation, and n is the sample size.

z = (1700 - 1596) / (250 / √144) = 3.77

We find that the area to the right of z = 3.77 is 0.0001 or 0.01%. Therefore, the percent of sample means for a sample of 144 college students that is greater than $1,700 is 0.01%.

d) To find the probability that sample means for samples of size 144 fall between $1,500 and $1,600, we need to find the z-scores corresponding to these values

z1 = (1500 - 1596) / (250 / √144) = -3.83

z2 = (1600 - 1596) / (250 / √144) = 0.61

We find the area to the left of z1 is 0.0001 and the area to the left of z2 is 0.7267. Therefore, the probability that sample means for samples of size 144 fall between $1,500 and $1,600 is:

P( -3.83 < z < 0.61 ) = 0.7267 - 0.0001 = 0.7266 or 72.66%.

e) To find the sample mean below which we can expect to find the lowest 25% of all the sample means, we need to find the z-score corresponding to the 25th percentile of the standard normal distribution. We find that the z-score corresponding to the 25th percentile is -0.674.

Then we can use the formula for the sample mean with this z-score:

z = (x - μ) / (σ / √n)

-0.674 = (x - 1596) / (250 / √144)

Solving for x, we get

x = -0.674 * (250 / √144) + 1596 = $1,561.58

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In the given stem-and-leaf plot, we can conclude that there are at least 5 outliers

The number of outliers in the given stem-and-leaf plot can be determined by identifying values that are significantly higher or lower than the majority of the data.

To find the number of outliers in the stem-and-leaf plot, we need to analyze the data distribution and identify values that deviate significantly from the rest of the scores.

Looking at the stem-and-leaf plot, we observe that the majority of the scores are concentrated between 20 and 90. The numbers 2, 3, 4, 5, 6, 7, 8, 9, and 10 represent the tens digit of the scores, while the leaves represent the ones digit.

Upon examining the plot, we notice that there are a few values that stand out from the rest. These values are 00, 01677, 6899, 233569999, and 01268. Outliers are typically defined as values that fall outside the "typical" range of the data, and these values appear to deviate significantly from the majority of the scores.

To determine the exact number of outliers, we need to apply specific criteria. One common method is to use the 1.5 × IQR (interquartile range) rule. The IQR is calculated as the difference between the third quartile (Q3) and the first quartile (Q1) of the data. Any values below Q1 - 1.5 × IQR or above Q3 + 1.5 × IQR are considered outliers.

In this case, we don't have the exact raw data to calculate the quartiles and IQR. However, based on visual inspection of the stem-and-leaf plot, we can still identify the values mentioned earlier as outliers due to their significant deviation from the majority of the scores.

Therefore, in the given stem-and-leaf plot, we can conclude that there are at least 5 outliers

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Answer:

your mom + your mom = big mama there you go your welcome

Step-by-step explanation:

your mom + your mom = big  mama there you go your welcome

Answer:

$4

Step-by-step explanation:

Answer:

61194.2707cm³

I suck at rounding so this is the answer not rounded :)

Answer:

She can find the percentage of each fraction of the spinner and make sure they are all equal to one another.

1/4 is 1 = 25%

1/4 is 2 = 25%

1/4 is 3 = 25%

1/4 is 4 = 25%

they are all equal so it is fair

The given set of functions {f_1(x) = x, f_2(x) = x^2, f_3(x) = 3x - 6x^2} is linearly independent on the interval (-infinity, infinity).

Linear independence of a set of functions means that no function in the set can be expressed as a linear combination of the other functions. In other words, for the set to be linearly independent, the only solution to the equation c_1f_1(x) + c_2f_2(x) + c_3f_3(x) = 0 should be c_1 = c_2 = c_3 = 0, where c_1, c_2, and c_3 are constants.

To determine if the given set is linearly independent, we need to check if there exist non-zero constants c_1, c_2, and c_3 such that c_1f_1(x) + c_2f_2(x) + c_3f_3(x) = 0 for all x in the interval (-infinity, infinity).

By substituting the functions into the equation and equating the coefficients of the terms with the same powers of x, we can solve for c_1, c_2, and c_3. If the only solution is c_1 = c_2 = c_3 = 0, then the set is linearly independent. In this case, the given set is indeed linearly independent as there is no non-zero solution to the equation, confirming that the functions are not dependent on each other.

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Answer:

1111¹5&-78+&%%567;!9098888

The regression estimate for how much he parties is 6.4.

Using the data, the regression line can be computed using any spreadsheet program. The regression line for this data will be in the format of y = ax + b where y is the dependent variable (drinking), x is the independent variable (partying hours), a is the slope, and b is the y-intercept.

To fill in the blanks, calculate the slope and intercept of the regression line. The formula for the slope of the regression line is given by:

Slope (a) = [(nΣxy) - (ΣxΣy)] / [(nΣx²) - (Σx)²]
where n is the number of data points, Σx and Σy are the sums of the x and y values, respectively, and Σxy is the sum of the product of x and y for each data point.

Similarly, the formula for the y-intercept is given by:
b = (Σy - aΣx) / n
Substituting the given data into the formulas, we get:
Slope (a) = [(6 × 638) - (21 × 6)] / [(6 × 91) - 6²] = 0.89
Intercept (b) = (21 - (0.89 × 91)) / 6 = 2.54

Therefore, the regression line is given by:
y = 0.89x + 2.54.

The regression estimate for how much the students reported drinking is given by the y value, while the regression estimate for how much they reported partying is given by the x value.

Using the last line of the table, where the number of drinks one student reported having per week is 8, the regression estimate for how much he parties is calculated by:
x = (8 - 2.54) / 0.89 = 6.4 (approx)

Therefore, the regression estimate is 6.4.

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Completing a square is a method for transforming a quadratic equation’s form so that its LHS becomes a perfect square, commonly known as vertex form. This is accomplished by rearranging the phrase.

X2 is x multiplied by itself, which is symbolized by and may be expressed as xx or x(x) as an algebraic term. 2 is an exponent in. It denotes that x has been multiplied by itself twice. x 2 = x .

heres the answer is, X squared is a helpful notation that we use in math. It can be used in different kinds of algebraic expressions. It simplifies our calculations and allows us to develop formulas to solve problems quicker!

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Answer:

-2 -7

0   -1

1     2

3    8

Step-by-step explanation:

Answer:

If they work together, they will take 6.16 days.

Step-by-step explanation:

Elsa takes 14 days to complete the work.

So, 1 day work by Elsa is \(\frac{1}{14}\)

Anna takes 11 days to complete the work.

So, 1 day work by Anna is \(\frac{1}{11}\).

So, Let if they work together, it would take x number of days.

So, we can set up equation as

\(\frac{1}{14} +\frac{1}{11}=\frac{1}{x}\)

Find LCD, which is 154.

\(\frac{11}{154} +\frac{14}{154} =\frac{1}{x}\)

Simplify

\(\frac{25}{154} =\frac{1}{x}\)

Cross multiply,

25x=154

Divide both sides by 25

x=6.16 days

If they work together, they will take 6.16 days.

A parent function is the simplest function of a family of functions which preserves the shape of all other functions in that family.

Notice that the function:

Comes from certain transformations applied to the parent function absolute value:

The degrees of freedom associated with a chi-square test of goodness of fit depends on the number of populations being compared. When there are four populations, the degrees of freedom must be three. This is because there are three independent variables (the populations) being compared.

To explain, consider a chi-square test of goodness of fit for four populations, each with a hypothesized population proportion of 0.25. This means that if the null hypothesis is true, the observed sample proportions will match the hypothesized proportions. Since there are four hypothesized proportions, we can calculate the expected frequencies using the product of the number of trials and the hypothesized proportions (i.e., 4*0.25). Thus, the degrees of freedom must be three, as three of the expected frequencies are not known (the fourth expected frequency is determined by the total number of trials).

To calculate the chi-square statistic, we use the formula: chi-square = Σ[(observed frequency - expected frequency)²/expected frequency], where the sum is taken across all four populations. The degrees of freedom for this statistic is equal to the number of independent variables, which in this case is three. Thus, if a chi-square test of goodness of fit has four populations, then three degrees of freedom must be used.

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Therefore , the solution of the given problem of ratio comes out to be

there are 32 fauvists .

Ratios show how often one number is contained in another in mathematics. For instance, the ratio of oranges to lemons in a fruit dish is 8 to 6 if there are 8 oranges and 6 lemons present. In a similar vein, the proportion of oranges to whole fruit is 8, while that of lemons to oranges is 6:8. A ratio is an ordered pair of numbers a and b that is expressed as a / b, with b not equal to zero. An equation equating two ratios is known as a ratio. The ratio can be expressed as 1:3, for instance, if there is 1 boy and 3 girls (for every boy she has 3 girls) 3/4 are girls, while 1/4 are boys.

Here,

Given :

the ratio is 13:4

and there were 104 impressionists

Let x be the fauvisits

=> 13:4 = 104/x

=>  13 /4  = 104/x

=> x = 104 *4 /13

= >x  = 32

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Answer:

-10 and -2/5

Step-by-step explanation

-10÷ \(-\frac{2}{5}\) = 25

Check

25 > 10

Answer:

The alphabet

Step-by-step explanation:

c or a

Answer:

it supports the Alphabet

Step-by-step explanation:

answer is A

Answer: Check the step by step

Step-by-step explanation:

Measure of <2 = 37.3 because opposite sides of a line are congruent. To find < 1, you have to add that plus <2 ( 37.3 ) to equal 180. 180 -37.3 = 142.7

For <3, it is also gonna be 142.7 ( as said before, opposite sides are congruent. ) and for <4, it is gonna be 79.4.  Hope this helps! If you have any other questions,  let me know! :D