Please help me please help me

1.823 radians  are the coordinates of A and A,  The coordinates of B' are; B' = (-3 * 4, -2 * 4) = (12, -8)  

a) To enlarge a triangle with a scale factor of 4, we need to first enlarge the original triangle by a scale factor of 1, and then reflect it across the y-axis.

The coordinates of A can be found using the law of sines:

sin(A) = (a/2) / sin(c)

where a is the semi-perimeter of the original triangle, c is the semi-perimeter of the enlarged triangle, and sin(A) is the length of side A.

Substituting the given values, we get:

sin(A) = (4/2) / sin(6)

= 2 / 3 sin(6)

sin(6) = (a/2) / sin(A)

= (4/2) / 2 / sin(2)

= (4/2) / 2 * sin(2) / sin(A)

= (4/2) * sin(A) / sin(2)

= 4 * sin(A) / 3

Therefore, the length of side A is:

A = sin^-1(4 * sin(A) / 3)

= sin^-1(4) - sin^-1(sin(A) / 3)

= 1.823 radians

To find the coordinates of A', we can reflect the point A across the y-axis. The reflection is given by the equation:

(x, y) -> (-x, y)

Substituting the coordinates of A, we get:

A' = (-1.823, 1.823)

b) To find the coordinates of B', we need to find the coordinates of B first. We can do this by reflecting the point B across the y-axis using the equation:

(x, y) -> (-x, -y)

Substituting the coordinates of B, we get:

B = (-3, -2)

The coordinates of B' are:

B' = (-3, -2)

Since the triangle is enlarged with a scale factor of 4, the coordinates of B' will be multiplied by 4. Therefore, the coordinates of B' are:

B' = (-3 * 4, -2 * 4) = (12, -8)  

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Answer:

20

Step-by-step explanation:

What is 25 percent (calculated percentage %) of number 80? Answer: 20.

Answer:

x = 20

y = 100

Step-by-step explanation:

To figure out x do this.

3x + 2x = 7x - 40 (collect like terms)

5x = 7x -40 (subtract 7x on both sides)

-2x = -40 (divide by -2 on both sides)

x = 20

Plug in to get y

Since 7x - 40 and y are vertical they equal the same amount

7(20) - 40 = y (multiply 7 by 20)

140 - 40 = y (collect like terms)

100 = y

Hope this helps ya! Keep smiling!

The given integral is ∫(0 / x² √(2² + 490)) dx. To solve this integral, we can make a substitution by letting x = 7tan(θ), where θ is between -π/8 and π/8. Then, dx = 2sec²(θ) dθ. The given integral is ∫(0 / x² √(2² + 490)) dx, and after making the substitution x = 7tan(θ), the integral becomes ∫(0 / 98sec³(θ) √(1 + 122.5tan²(θ))) dθ.

Substituting these expressions in the integral, we have ∫(0 / (7tan(θ))² √(2² + 490))(2sec²(θ)) dθ. Simplifying further, we get ∫(0 / 49tan²(θ) √(4 + 490))(2sec²(θ)) dθ. Rearranging the expression under the square root, we have ∫(0 / 49sec²(θ) √(4(1 + 122.5tan²(θ))))(2sec²(θ)) dθ. This can be simplified to ∫(0 / 98sec³(θ) √(1 + 122.5tan²(θ))) dθ.

In summary, the given integral is ∫(0 / x² √(2² + 490)) dx, and after making the substitution x = 7tan(θ), the integral becomes ∫(0 / 98sec³(θ) √(1 + 122.5tan²(θ))) dθ.

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The given integral is ∫(0 / x² √(2² + 490)) dx. To solve this integral, we can make a substitution by letting x = 7tan(θ), where θ is between -π/8 and π/8. Then, dx = 2sec²(θ) dθ. The given integral is ∫(0 / x² √(2² + 490)) dx, and after making the substitution x = 7tan(θ), the integral becomes ∫(0 / 98sec³(θ) √(1 + 122.5tan²(θ))) dθ.

Substituting these expressions in the integral, we have ∫(0 / (7tan(θ))² √(2² + 490))(2sec²(θ)) dθ. Simplifying further, we get ∫(0 / 49tan²(θ) √(4 + 490))(2sec²(θ)) dθ. Rearranging the expression under the square root, we have ∫(0 / 49sec²(θ) √(4(1 + 122.5tan²(θ))))(2sec²(θ)) dθ. This can be simplified to ∫(0 / 98sec³(θ) √(1 + 122.5tan²(θ))) dθ.

In summary, the given integral is ∫(0 / x² √(2² + 490)) dx, and after making the substitution x = 7tan(θ), the integral becomes ∫(0 / 98sec³(θ) √(1 + 122.5tan²(θ))) dθ.

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Answer:

Step-by-step explanation:

Area of the rectangle = length * width

            = (9x - 2)(2x + 5)

            Use FOIL method

            = 9x*(2x) + (9x)*(5) + (-2)*(2x) + (-2)*5

            = 18x² + 45x - 4x - 10          {Combine like terms}

           = 18x² + 41x - 10

Answer:

A. y = | x - 6 | - 3

Step-by-step explanation:

Hope this is helpful

Answer:

D

Step-by-step explanation:

when you look at the graph you can notice a kind of a curve at that point x is -6 and Y is -3 so what u have to do is replace -6 in position of x in the 4 answers and the one who's Y = -3 is your answer

The correct formula that defines an arithmetic sequence is option d) tn = 5n + 14.

An arithmetic sequence is a sequence of numbers in which the difference between consecutive terms remains constant. In other words, each term can be obtained by adding a fixed value (the common difference) to the previous term.

In option a) tn = 5 + 14, the term does not depend on the value of n and does not exhibit a constant difference between terms. Therefore, it does not represent an arithmetic sequence.

Option b) tn = 5n² + 14 represents a quadratic sequence, where the difference between consecutive terms increases with each term. It does not represent an arithmetic sequence.

Option c) tn = 5n(n+14) represents a sequence with a varying difference, as it depends on the value of n. It does not represent an arithmetic sequence.

Option d) tn = 5n + 14 represents an arithmetic sequence, where each term is obtained by adding a constant value of 5 to the previous term. The common difference between consecutive terms is 5, making it the correct formula for an arithmetic sequence.

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Answer: 57/100 (no way to simplify so fraction remains the same)

Answer:

57/100

Step-by-step explanation:

0.57, there is 2 places to the left, so it will be in the hunderths place

0.57 = 57

So, 57/100

Hope this helps!!!

The side length of the square that provides a counterexample to the statement square units in the area of a square is greater than or equal to the number of units in the perimeter is 2 Units.

A square is a kind of a 2D figure in which all the sides are equal.

We know that the absolute perimeter of a square is the sum of the lengths of all the total sides and as we see the area of a square is (side)².

Assuming that the whole square has four units completed for each side.

The square's circumference can be calculated as is 4 sides plus 4 fours, or as seen as 16 units.

Now the area of the square will be calculated as (4) ² = 16 sq units.

Now assuming that the total side length of the square about is 2 units.

The square's perimeter is calculated as (24) = 8 units, while its total area is calculated as (22) = 4 units.

∴ 2 units make up the side length that serves as a counterexample.

Basically, herein we have to determine the absolute numbers that when are multiplied by 4 are seen to be greater than it's square such numbers are 1, 2, 3.

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It is correct to say that the test statistic for a hypothesis test of a population proportion is the z-value.

Hence this statement is true.

The statement that says, "the test statistic for a hypothesis test of a population proportion is the z-value" is True.

A hypothesis test is a statistical method used to make inferences about a population based on a sample.

Z-test is a statistical test used to determine whether two population means are different when the variances are known and the sample size is large enough to assume a normal distribution.

It is used for hypothesis testing to determine if the null hypothesis should be rejected or not.

Z-test is a statistical test used to compare the proportion of the sample to the population with a standard normal distribution.

The z-value or z-score is calculated by subtracting the population proportion from the sample proportion and dividing the result by the standard error of the proportion.

If the z-value is greater than the critical value, the null hypothesis is rejected, indicating that the sample proportion is significantly different from the population proportion.

If the z-value is less than the critical value, the null hypothesis is not rejected, indicating that the sample proportion is not significantly different from the population proportion.

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Answer: -143749601 :)

Step-by-step explanation:

Answer:

-143749601

That's the answer.

Answer:

Area of circle bounded by a 135 ° arc is 4.71 m ²

Step-by-step explanation:

Radius of circle, r = 2 m

Angle of the circle , θ = 135 °

Area of circle bounded by a 135 ° arc.

Using Formula

Area of circle = θ/ 360 × π × r ²

substitute the values,

Area of circle = 135 /360 × 3.14 × ( 2 m) ²

solve it

Area = 27 / 72 × 3.14 × 4 m ²

Area = 27 / 18 × 3.14

Area = 1.5 × 3.14

Area = 4.71 m ²

Therefore, Area of circle bounded by a 135 ° arc is 4.71 m ²

Answer:

it's 3/2pi

Step-by-step explanation:

.

The specific gravity of the combined product is 1.22

Specific gravity is the ratio of the density of a substance to the density of some substance (such as pure water) taken as a standard when both densities are obtained by weighing in air.

Given,

The total quantity of portion= 50 ml

Specific gravities of the three syrups = 1.10,1.25 and 1.32

Then,

The specific gravity of the combined product= \(\frac{1.10+1.25+1.32}{3}\)

= 1.22

Hence, the specific gravity of the combined product is 1.22.

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There are 7 months in the year that have thirty-one days.

These months are January, March, May, July, August, October, and December.

There are seven months in the Gregorian calendar that have thirty-one days: January, March, May, July, August, October, and December.

This pattern of months with 31 days followed by months with fewer days repeats throughout the year.

This pattern was established by the Roman calendar, which had ten months totaling 304 days in a year.

The months of January and February were later added by King Numa Pompilius to align the calendar with the lunar year.

The months of January and February initially had 29 and 28 days respectively, but in 45 BC, Julius Caesar added one day to January and one day to August, which was originally a 30-day month, to make them both 31-day months.

In the Gregorian calendar, which is the most widely used calendar in the world, January, March, May, July, August, October, and December all have 31 days.

The remaining five months have fewer days, with February having 28 days most of the time, and 29 days in a leap year.

Knowing the number of days in each month is important for various reasons, such as planning events, scheduling appointments, and calculating pay periods.

There are several mnemonics used to remember the number of days in each month, such as "30 days hath September, April, June, and November, all the rest have 31, except February, with 28 days clear, and 29 in each leap year."

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The correct interpretation for a 95% confidence interval is (c) 95% of the confidence intervals created around sample means will contain the population mean.

The confidence interval is a range of values that has been set up to estimate the value of an unknown parameter, such as the mean or the standard deviation, from the sample data. Confidence intervals are usually expressed as a percentage, indicating the probability of the actual population parameter falling within the given interval. Therefore, a 95% confidence interval, for example, indicates that we are 95% confident that the population parameter lies within the interval range.

The following interpretations for a 95% confidence interval are accurate:(a) The population mean will fall in a given confidence interval 95% of the time. This interpretation is incorrect because the population parameter is fixed, and it either falls within the confidence interval or it does not. Therefore, it is incorrect to say that it will fall within the interval 95% of the time.

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Answer:

gross wages each paycheck = $3,958.33 .

Step-by-step explanation:

Given that

she is paid bi-monthly.

it means that She is paid wages twice in the month.

Since there are 12 months in a year ,

she is paid = 12 month * twice in 1 month = 24 times in a year

___________________________________________

Given that she get $95,000 in a year

let here each bimonthly wage be x

thus, if she paid 24 times in a year

total wages [paid to her = 24* each bimonthly wage = 24x

24x should be equal to t $95,000

24x = $95000

x  = $95000/24 = $3958.33

Thus, her gross wages each paycheck is $3,958.33 .

The required white effective interest rate is 0.71% more than his nominal interest rate.

Compound interest is the interest on deposits computed on both the initial principal and the interest earned over time.

Here,

White Effective interest R,
\(R=(1+i/m)^m)-1\\R=(1+0.1362/4)^4)-1\\R =0.1433*100=\)
R = 14.33 percent

So

Difference in interest = 14.33%-13.62%
                                    =0.71%

Thus, the required white effective interest rate is 0.71% more than his nominal interest rate.

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The polynomial with a factor of x + 1 is f(x) = x³ + 3x² + 3x + 1

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

Factor =  (x + 1)

The above factor is a linear factor

Since, we need at least two factors to make a polynomial, we can use the following equation

f(x) = (x + 1)³

When expanded, we have

f(x) = x³ + 3x² + 3x + 1

Hence, a polynomial with a factor of x + 1 is f(x) = x³ + 3x² + 3x + 1

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The inference procedure for each is give below-

A. The inference procedure: Confidence Interval - One mean, μ.

C. The inference procedure: Hypothesis test - Difference in proportions from two samples, P1-P2.

E. The inference procedure: Confidence Interval - One proportion, p.

G. The inference procedure: Confidence Interval - Difference in proportions from two separate samples, M1-M2

I. The Inference procedure: Hypothesis test - Difference in means from two independent samples.

K. The Inference procedure: Hypothesis test - Paired means, HD.

B. The Inference procedure: Hypothesis test - Difference in proportions from two samples, P1-P2.

D. The Inference procedure: Hypothesis test - One mean, μ.

F. Inference procedure: Confidence Interval - Paired means, HD.

H. Inference procedure: Hypothesis test - One proportion, p.

J. Inference procedure: Confidence Interval - Difference in means from two independent samples.

L. It doesn't directly involve inference.

Now we have-

A. What's the average number of free throws for the Warriors to attempt during a game?

Distribution type: z

C. Do the Warriors make more free throws (on average) during games at home than on the road?

Simulation type: BT (bootstrap)

Distribution type: z

E. What proportion of free throw attempts do the Warrior players make?

Simulation type: BT (bootstrap)

Distribution type: z

G. How much better (or worse) are the Warriors at making free throw attempts compared to their opponents?

Simulation type: BT (bootstrap)

Distribution type: z

I. Is the mean number of free throw attempts awarded to the Warriors during their games different from the mean number attempted by their opponents?

Distribution type: z

K. (Challenge) On average, is the point spread when GSWarriors win larger than the point spread when they lose?

Simulation type: BT (bootstrap)

Distribution type: z

B. Is the proportion of free throws made by the Warriors different between games they play at home and those they play on the road?

Simulation type: BT (bootstrap)

Distribution type: z

D. Over the past 10 years, NBA teams have averaged close to 25 free throw attempts per game. Treating this as the population mean, is the mean number of free throw attempts by the Warriors much different?

Simulation type: BT (bootstrap)

Distribution type: z

F. How many more (or fewer) free throw attempts do the Warriors take on average for home games compared to road games?

Simulation type: BT (bootstrap)

Distribution type: z

H. Players in the NBA as a whole make about 75.6% of their free throws. Is the proportion made by the Warriors different from this?

Simulation type: BT (bootstrap)

Distribution type: z

J. How does the average number of free throws made (per game) by the Warriors compare to their opponents?

Distribution type: z

L. (Extra) On average, what is the point spread in GS Warrior games? (where "+" means they won; "-"means they lost)

This case doesn't directly involve inference.  As it requires calculating the average point spread, but it doesn't involve making statistical inferences about a population parameter.

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Answer:

Step-by-step explanation:

recall law of Sines   :) the same as before  Sin(A) /a = Sin(B) / b

[ when you see it a lot.. you'll remember it  :D ]

for this problem  Z =A=123  and a = 30

Y=B and b =14

Sin(123) / 30 = Sin(B) / 14

14 * 0.0279556 = Sin(B)

0.391379 = Sin(B)

arcSin(0.391379 ) = arcSin ( Sin (B) )

23.040 = B

Y = 23.0°

are you seeing how to do these?  so you could on a test?

The probability that someone does not believe that it is morally wrong to not report all income on tax returns is = 0.15

For given question,

A research center poll showed that 85 percent of people believe that it is morally wrong to not report all income on tax returns.

so, the probability that someone have this belief is P = 0.85

We know that in probability,

p = 1 - q

where;

p is probability of success

q is probability of failure.

Thus the probability that someone does not have this​ belief would be,

= 1 - P

= 1 - 0.85

= 0.15

Therefore, the probability that someone does not believe that it is morally wrong to not report all income on tax returns is = 0.15

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Answer:

x = 14.02 units

Step-by-step explanation:

Finding unknown value using Pythagorean theorem:

 This is an isosceles trapezium.  The two perpendiculars  divide the trapezium into two congruent triangles and a rectangle. Let the base of the triangle by 'y'. We can find the value of 'y' using Pythagorean theorem.      

In ΔABC,

                AC² = AB² + BC²

                   19² = 17 ² + y ²

                 361  = 289 + y ²

        361 - 289  = y ²

                      y ² = 72

                      y =√72

                      y = 8.49

x = 31 - 8.49 - 8.49

x = 14.02

Since, The equation of the height with the time is provided and the balloon is thrown upwards against gravity from 5 feet, The answer is 0.255 sec.

A mathematical equation is a formula that uses the equals sign to represent the equality of two expressions. The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.

When gravity first exerts force on an object, its initial velocity defines how quickly the object moves. The final velocity, on the other hand, is a vector number that gauges a moving body's speed and direction after it has reached its maximum acceleration.

initial height = 5

final height =20

height to travel =20-5 =15

\(15 = 16t^{2}+35t+5\\16t^{2}+35t-10 =0\)

solving we get, t = 0.255 or -2.44

since, -2.44 is not possible,

t = 0.255 seconds.

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i have now attached the picture but it can be wrong!

Answer:

x = 12

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

a⁵b⁸

Step-by-step explanation:

Greatest common factor of two expressions is the greatest expression that is a factor of both expressions.

 a⁵ and b⁸ are the greatest factor in both terms.

The given inequality can be written in the form of two linear inequalities as 7x - 8y ≤ 32 and -7x + 8y ≤ 44. These inequalities represent the positive and negative cases of the absolute value expression.

To rewrite the given absolute value inequality, ∣∣7x−8y+6∣∣≤38, as two linear inequalities, we need to consider both the positive and negative cases of the absolute value expression. By removing the absolute value, we can express the given inequality as two separate linear inequalities.

To rewrite the given absolute value inequality, we consider both the positive and negative cases of the absolute value expression. Let's first consider the positive case:

7x - 8y + 6 ≤ 38

To simplify this inequality, we subtract 6 from both sides:

7x - 8y ≤ 32

This is the first linear inequality.

Now let's consider the negative case:

-(7x - 8y + 6) ≤ 38

To simplify this inequality, we distribute the negative sign:

-7x + 8y - 6 ≤ 38

Next, we add 6 to both sides:

-7x + 8y ≤ 44

This is the second linear inequality.

Therefore, the given absolute value inequality, ∣∣7x−8y+6∣∣≤38, can be rewritten as the system of linear inequalities:

7x - 8y ≤ 32

-7x + 8y ≤ 44

These two linear inequalities represent the positive and negative cases of the absolute value expression, respectively.

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Answer:

20 men

Step-by-step explanation:

6*10=60 man hours to build 150 m

60/150=2/5 man hours per m

200*2/5=80 man hours

80/4 =20 men