If cos(t)=− (7/9) where π sin(2t)=
cos(t/2)=
sin(t/2 )=
​

tan(41π/36) can be written in terms of the tangent of a positive acute angle as (tan((1/9)π) + tan((37/36)π)) / (1 - tan((1/9)π)tan((37/36)π))

To express tan(41π/36) in terms of the tangent of a positive acute angle, we need to find an angle within the range of 0 to π/2 that has the same tangent value.

First, let's simplify 41π/36 to its equivalent angle within one full revolution (2π):

41π/36 = 40π/36 + π/36 = (10/9)π + (1/36)π

Now, we can rewrite the angle as:

tan(41π/36) = tan((10/9)π + (1/36)π)

Next, we'll use the tangent addition formula, which states that:

tan(A + B) = (tan(A) + tan(B)) / (1 - tan(A)tan(B))

In this case, A = (10/9)π and B = (1/36)π.

tan(41π/36) = tan((10/9)π + (1/36)π) = (tan((10/9)π) + tan((1/36)π)) / (1 - tan((10/9)π)tan((1/36)π))

Now, we need to find the tangent values of (10/9)π and (1/36)π. Since tangent has a periodicity of π, we can subtract or add multiples of π to get equivalent angles within the range of 0 to π/2.

For (10/9)π, we can subtract π to get an equivalent angle within the range:

(10/9)π - π = (1/9)π

Similarly, for (1/36)π, we can add π to get an equivalent angle:

(1/36)π + π = (37/36)π

Now, we can rewrite the expression as:

tan(41π/36) = (tan((1/9)π) + tan((37/36)π)) / (1 - tan((1/9)π)tan((37/36)π))

Since we are looking for an angle within the range of 0 to π/2, we can further simplify the expression as:

tan(41π/36) = (tan((1/9)π) + tan((37/36)π)) / (1 - tan((1/9)π)tan((37/36)π))

Therefore, tan(41π/36) can be written in terms of the tangent of a positive acute angle as the expression given above.

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Answer:

I think that the answer is 93.2

degrees

(34°C × 9/5) + 32 = 93.2 ° F

Michael’s child is going to college in 13 years. If he saves $ 7,000 a year at 9% compounded annually. Therefore,  the amount available for Peter's child education will be $147,330.55.

Given that Michael is saving $7,000 per year for his child's education which will occur in 13 years. If the interest rate is 9% compounded annually,

The problem of finding the amount of money Michael will have saved in 13 years is a compound interest problem.

In this case, the formula for calculating the future value of the annuity is: $FV = A[(1 + r)n - 1] / r

where: FV is the future value of the annuity, A is the annual payment,r is the annual interest rate, and n is the number of payments.

Using the above formula; the future value of Michael's savings is:

FV = 7000[(1 + 0.09)^13 - 1] / 0.09= 7000(1.09^13 - 1) / 0.09= 147,330.55

Therefore, the amount available for Peter's child education will be $147,330.55.

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A good residual plot should have the points randomly scattered around the horizontal line with no discernible pattern.

This indicates that the model is well fit to the data. The residuals should also be equally distributed on either side of the horizontal line. This can be seen as the sum of the residuals being equal to 0, or mathematically expressed as the sum of the residuals (e) being equal to 0, where \(e = y - ŷ\), where y is the observed value and ŷ is the predicted value. The equation can be expressed as Σe=0.

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Answer:

The probability of rolling an odd number or a two on a six-sided die is 1/2 + 1/6 = 2/3. This means that if you roll a six-sided die 300 times, you can expect to roll an odd number or a two approximately 200 times

Step-by-step explanation:

Answer: 400 TIMES

Step-by-step explanation:

1/6 +1/2

4/6

2/3

Answer:

Amelia has more she has 1/2 and Alex has 1/3

Answer:

This correlation simply means that, in every twin whether identical or fraternal twins, there is a relation between their IQ scores and when they are raised together.

Regarding to the test carried out, it showed that, when an identical twin is raised together, their IQ score tends to be higher in direct comparison with a fraternal twin that was raised together. That is, if the fraternal twin IQ is 100, then, the identical twin IQ is going to be above 100 (probably around 120)

Step-by-step explanation:

Answer:

y = x + 7

Step-by-step explanation:

Pick 2 points on the line to calculate the slope, m:  (3, 10) and (5, 12)

m = Δy/Δx = (12 - 10) / (5 - 3) = 2/2 = 1

Use the point-slope equation and the point (3, 10):   (y - y1) = m(x - x1)

(y - 10) = 1(x - 3)

y - 10 = x - 3

y = x - 3 + 10

y = x + 7

Answer:

9m + 6

Step-by-step explanation:

Maria has half as many sweets as Yenny , that is

\(\frac{1}{2}\) (6m + 4) ← multiply each term in the parenthesis by \(\frac{1}{2}\)

= 3m + 2

Total sweets = 6m + 4 + 3m + 2 ← collect like terms

                      = 9m + 6

Answer:

x=2

Step-by-step explanation:

Multiply by terms.

2(-8x+4) = -3(x+6)

-16x+8=-3x-18

16x+3x=-18-8

-13x=-26

Divide by both sides

x=2

Answer:

ill try and help you but im on the same string rn too i have 12 assignment to do 2nite too

Step-by-step explanation:

Answer:

500

Step-by-step explanation:

answer 500

mark 500 to the question

?????????????????????????

The values for \(\theta (0 \le \theta \le 2\pi)\) that satisfy the equation are\(\dfrac{4\pi} {3}, \dfrac{5\pi} {3}\). The correct option is a.

The trigonometric function \(sin \theta\)  is a continuous and periodic function. The relationship between the sides and the angles of the right angle triangle are denoted by trigonometric functions.

The values for\(\theta (0 \le \theta \le 2\pi)\)  that satisfy the equation are calculated as:

\(3sin \theta = sin\theta \sqrt{3}\)

This can be solved as:

\(3sin \theta = sin\theta \sqrt{3}\)

Subtract \(sin \theta\) from both sides of the equation:

\(2sin\theta = -\sqrt{3}\)

Divide both sides by 2:

\(sin\theta = -\sqrt\dfrac{3}{2}}\)

From the unit circle or trigonometric ratios, we know that \(sin \theta\) that corresponds to two angles are \(\dfrac{\pi}{3}\) and \(\dfrac{5\pi}{3}\).

Therefore, the values for\(\theta (0 \le \theta \le 2\pi)\) that satisfy the equation are \(\dfrac{4\pi} {3}, \dfrac{5\pi} {3}\)

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The solution to the trigonometric equation 3sinθ = sinθ - √3 for values of theta between 0 and 2π is θ = π/3 , 5π/3 (option d).

First, let's start by consolidating the trigonometric equation on one side. So, 3sinθ - sinθ = √3. This simplifies to 2sinθ = √3.

Now, we can divide both sides by 2 to solve for sinθ, so sinθ = √3/2.

Looking at the unit circle, the values of theta (0≤θ≤2π) that make sinθ = √3/2 are π/3 and 5π/3. Therefore, the solution to the equation 3sinθ = sinθ - √3 within the given domain is θ = π/3 , 5π/3.

This corresponds to option (d) in the given multiple choice responses.

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R & U are the midpoints of TV & SV. By using mid point theorem..,

ST = 2 RU

y + 6 = 2 (y - 23)

y + 6 = 2y - 46

y - 2y = - 46 - 6

- y = -52.

=》 y = 52.

ST = y + 6 = 52 + 6 = 58

=》 ST = 58

_____

RainbowSalt2222 ☔

Given:

The given equation is,

Required:

Solve for x.

Answer:

Let us solve the given equation for x.

Final Answer:

The value of x is,

20 degrees Celsius is equivalent to 68 degrees Fahrenheit.

To convert Celsius to Fahrenheit, you can use the conversion formula: (°C × 9/5) + 32 = °F. So to convert 20 degrees Celsius to Fahrenheit, you would multiply 20 by 9/5, and then add 32.

This gives you the equivalent temperature of 68 degrees Fahrenheit. It's worth noting that the Fahrenheit scale is used primarily in the United States, while the Celsius scale is used in most other countries.

While the size of the degree is the same for both scales, the point at which water freezes and boils is different: 32 degrees Fahrenheit for the freezing point of water and 212 degrees Fahrenheit for the boiling point of water, while the freezing point of water is 0 degree Celsius and boiling point is 100 degree Celsius. So, 20 degree Celsius is equivalent to 68 degree Fahrenheit

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Using binomial probability, the probability of having exactly 4 dice on 4, 5 or 6 is 5/32.

Using binomial probability, we can calculate the probability that out of the 5 dice thrown, the probability of having exactly 4 dice on 4, 5 or 6 can be calculated as;

\(P(X=k) = C(n, k) * p^k * (1-p)^(^n^-^k^)\)

In the given data;

n = 5

k = 4

p = 3/6 = 1/2

Using the binomial probability formula, we can calculate:

P(X=4) = C(5, 4) * (1/2)⁴ * (1 - 1/2)⁵⁻⁴

P(X=4) = 5 * (1/2)⁴ * (1/2)¹

P(X=4) = 5 * (1/16) * (1/2)

P(X=4) = 5/32

Therefore, the probability that exactly 4 dice land on a 4, 5, or 6 when rolling five fair dice is 5/32.

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Answer:  A

Step-by-step explanation:

When multiplying: Numbers multiply with numbers and for the x's, add the exponents

If there is no exponent, you can assume an imaginary 1 is the exponent

2x⁴ (3x³ − x² + 4x)

= 6x⁷ -2x⁶ + 8x⁵

Answer:

A. \(6x^{7} - 2x^{6} + 8x^{5}\)

Label the parts of the expression:

Outside the parentheses = \(2x^{4}\)

Inside parentheses = \(3x^{3} -x^{2} + 4x\)

You must distribute what is outside the parentheses with all the values inside the parentheses. Distribution means that you multiply what is outside the parentheses with each value inside the parentheses

\(2x^{4}\) × \(3x^{3}\)

\(2x^{4}\) × \(-x^{2}\)

\(2x^{4}\) × \(4x\)

First, multiply the whole numbers of each value before the variables

2 x 3 = 6

2 x -1 = -2

2 x 4 = 8

Now you have:

6\(x^{4}x^{3}\)

-2\(x^{4}x^{2}\)

8\(x^{4} x\)

When you multiply exponents together, you multiply the bases as normal and add the exponents together

\(6x^{4+3}\) = \(6x^{7}\)

\(-2x^{4+2}\) = \(-2x^{6}\)

\(8x^{4+1}\) = \(8x^{5}\)

Put the numbers given above into an expression:

\(6x^{7} -2x^{6} +8x^{5}\)

distribution

variable

like exponents

Answer:

3004 square feet

Step-by-step explanation:

  2

(2    )   +3000

2x2+3000

4+3000

3004

The possible polynomial functions with x-intercepts at (-2,0), (-3,0), and (5,0) will be one of the second degree (quadratic) polynomials. Thus, the correct answer is: Option (d) 2 possible polynomial functions.

The polynomial functions are functions that consist of terms made up of constants, coefficients, and variables that are combined using the four fundamental mathematical operations: addition, subtraction, multiplication, and division.

Here, we are given three x-intercepts at (-2,0), (-3,0) and (5,0).X-intercepts are also known as zeros or roots of a polynomial function.

When a function intersects with the x-axis, it is said to have an x-intercept.In general, any polynomial function of degree n can have n zeros, which are the values of x for which f(x) = 0. So, as we have three x-intercepts, so there will be 3 zeros of the polynomial function.

Therefore, the possible polynomial functions with x-intercepts at (-2,0), (-3,0), and (5,0) will be one of the second degree (quadratic) polynomials. Thus, the correct answer is: Option (d) 2 possible polynomial functions.

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The combined cost of one pound of pork and one pound of beef is $ 15.5.

The total cost is equal to the sum of the products of unit price and quantity of an article. In this problem we find the sum of the quantities of two products (pork roast, beef roast), whose expression can be described below:

67.50 = (3.25) · (x - 0.50) + (5.5) · x

Where x is the unit cost of the beef roast.

Now we proceed to solve the equation for x:

67.50 = 3.25 · x - 1.625 + 5.5 · x

69.125 = 8.75 · x

x = 7.9

A pound of beef roast costs $ 7.9 and a pound of pork roast costs $ 7.4. Then, the combined cost of one pound of prok and one pound of beef is:

C = 1 · 7.9 + 1 · 7.4

C = 15.5

The combined cost of one pound of pork and one pound of beef is $ 15.5.

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To prove that τ and σ are multiplicative, we need to show that if m and n are relatively prime, then τ(mn) = τ(m)τ(n) and σ(mn) = σ(m)σ(n).

To prove τ(mn) = τ(m)τ(n), we can start by considering the prime factorization of m and n. Let's say m = p₁^a₁ * p₂^a₂ * ... * pₖ^aₖ and n = q₁^b₁ * q₂^b₂ * ... * qₙ^bₙ, where p₁, p₂, ..., pₖ and q₁, q₂, ..., qₙ are distinct prime numbers. Since m and n are relatively prime, none of their prime factors overlap.

Now, the divisors of mn are the numbers of the form p₁^x₁ * p₂^x₂ * ... * pₖ^xₖ * q₁^y₁ * q₂^y₂ * ... * qₙ^yₙ, where 0 ≤ xᵢ ≤ aᵢ and 0 ≤ yⱼ ≤ bⱼ. Thus, the number of divisors of mn, τ(mn), can be calculated by multiplying the number of divisors of m, τ(m), with the number of divisors of n, τ(n). Hence, τ(mn) = τ(m)τ(n).

To prove σ(mn) = σ(m)σ(n), we can again use the prime factorization of m and n. Similar to the previous proof, the sum of divisors of mn, σ(mn), can be calculated by multiplying the sum of divisors of m, σ(m), with the sum of divisors of n, σ(n). Hence, σ(mn) = σ(m)σ(n).

Therefore, we have proved that τ and σ are multiplicative when m and n are relatively prime.

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We have shown that both τ and σ are multiplicative functions, satisfying the properties τ(mn) = τ(m)τ(n) and σ(mn) = σ(m)σ(n) for relatively prime numbers m and n.

To prove that τ (the number of positive divisors) and σ (the sum of positive divisors) are multiplicative functions, we need to show that for any two relatively prime numbers, m and n, the following properties hold:

1. τ(mn) = τ(m)τ(n)

2. σ(mn) = σ(m)σ(n)

Let's start with property 1:

1. τ(mn) = τ(m)τ(n)

If m and n are relatively prime, it means that they do not share any prime factors. Therefore, the divisors of mn are formed by taking a divisor of m and a divisor of n. Each divisor of mn can be uniquely expressed as the product of a divisor of m and a divisor of n.

Since the number of divisors of mn is equal to the product of the number of divisors of m and the number of divisors of n, we can conclude that τ(mn) = τ(m)τ(n).

Now let's move on to property 2:

2. σ(mn) = σ(m)σ(n)

Similar to property 1, we can express the sum of divisors of mn as the sum of products, where each product is formed by taking a divisor of m and a divisor of n. Again, since m and n are relatively prime, their divisors are distinct.

Using the distributive property, we can expand the sum of products as the sum of two separate terms: one involving the divisors of m and another involving the divisors of n. The sum of divisors of mn is therefore equal to the product of the sum of divisors of m and the sum of divisors of n.

Hence, we can conclude that σ(mn) = σ(m)σ(n).

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According to the Side-Angle-Side Theorem (SAS), two triangles are congruent if their two sides and the angle between them are equal to those of another triangle's two sides and angle.

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The vertex of the quadratic equation is (-3,2)

Remember that for a genral quadratic equation:

y = ax² + bx + c

The vertex is at:

x = -b/2a

Here we have the quadratic equation:

y = 2x² + 12x + 20

Then the x-value of the vertex is at:

x = -12/(2*2) = -3

Evaluating in that value we will get.

y = 2*(-3)² + 12*-3 + 20

y = 2

Then the vertex is (-3, 2)

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Answer:

9.3

Step-by-step explanation:

9.3 squared = 86.49

9.8 squared =  96.04

8.5 squared = 72.25

10.1 just gonna be higher

Answer:

b= sin(43°) * 8 / sin(55°) ≈ 6.7

Step-by-step explanation:

Regarding the law of sines, each angle corresponds to the side opposite of it. Here, that means that the 82 degree angle is opposite of side c (so they correspond) and that the 55 degree angle corresponds to the side with 8cm. However, we are trying to find the length of side b. Therefore, assuming that the side with 8cm is side A, if we know that

sin A / a = sinB/b = sin C / C

= sin(55°)/8 = sinB/b = sin(82°) / c, we can take c out of the equation to get

sin(55°)/8 = sinB/b

If we know sinB, we can multiply both sides by 8 to remove a denominator to get

sin(55°) * b / 8 = sinB

multiply both sides by 8 to remove the other denominator to get

sin(55°) * b = sinB * 8

divide both sides by sin(55°) to isolate the b

b = sinB * 8/sin(55°).

Therefore, if we know sinB, we can figure out the length of b.

Because the angles of a triangle add up to 180 degrees, we can say that

180 = 82 + 55 + angle B

180 = 137 + B

subtract both sides by 137 to isolate B

43 = B

b= sin(43°) * 8 / sin(55°) ≈ 6.7

To develop an estimated regression with family-sedan and upscale-sedan as independent variables for treating cost/mile as the dependent variable, we can use a multiple linear regression model. The regression equation can be written as:

Cost/mile = β0 + β1 * Family-sedan + β2 * Upscale-sedan + ɛ

Here, β0 is the intercept, β1 is the coefficient of the Family-sedan variable, β2 is the coefficient of the Upscale-sedan variable, and ɛ is the error term.

After running the regression, we can examine the coefficients and their corresponding p-values to determine the significance of the independent variables. If the p-value is less than 0.05, we can conclude that the variable is statistically significant.

The findings of the regression will depend on the data used and the specific coefficients and p-values obtained. However, in general, we can expect that the cost/mile will be higher for upscale sedans compared to family sedans. This is because upscale sedans tend to have higher prices and higher maintenance costs. Additionally, we can expect that the coefficients of both variables will be positive, indicating that an increase in family-sedan or upscale-sedan ownership will result in an increase in cost/mile.

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The transformation of the function f(x) = log2(x) involves shifting 2 units up and vertically compressing by a factor of 0.4.

Which function represents the transformation g(x)?

The following equation can be used to represent the transformation:

g(x) = 0.4*log2(x) + 2

Therefore, the function that represents the transformation g(x) is:

g(x) = 0.4*log2(x) + 2

To understand the transformation of the function f(x) = log2(x) into g(x), we need to first understand the individual transformations involved.

Vertical compression: When a function is vertically compressed by a factor 'a', its output values get multiplied by 'a'. This means that the function's range gets compressed by a factor of 'a'. In this case, the function f(x) = log2(x) is vertically compressed by a factor of 0.4. So, the output values of f(x) get multiplied by 0.4, which compresses the range of the function by a factor of 0.4.

Vertical shift: When a function is shifted 'b' units up or down, its output values get increased or decreased by 'b'. This means that the function's range gets shifted up or down by 'b'. In this case, the function f(x) = log2(x) is shifted 2 units up. So, the output values of f(x) get increased by 2, which shifts the range of the function 2 units up.

Putting these two transformations together, we get the transformation of the function f(x) = log2(x) into g(x) as follows:

g(x) = 0.4*log2(x) + 2

This equation represents a vertical compression of the function f(x) by a factor of 0.4, followed by a vertical shift of 2 units up.

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Complete question:

When estimating a population mean (μ) with a known population standard deviation (σ), the proper distribution to use is the standard normal distribution. So, correct option is A.

This is because the sampling distribution of the sample mean follows a normal distribution when the population standard deviation is known. The central limit theorem guarantees that the sample mean will be normally distributed with mean μ and standard deviation σ/√n, where n is the sample size.

The formula for constructing a confidence interval for μ when σ is known is:

CI = x' ± zα/2 * (σ/√n)

where x' is the sample mean, zα/2 is the z-score corresponding to the desired confidence level (α), σ is the population standard deviation, and n is the sample size.

Since the standard normal distribution has a mean of 0 and a standard deviation of 1, we can use z-scores to find the appropriate values for zα/2. This is why the standard normal distribution is used for interval estimation when σ is known.

In summary, the standard normal distribution is used for interval estimation of μ when σ is known because the sampling distribution of the sample mean is normally distributed when the population standard deviation is known.

So, correct option is A.

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Answer:

x = 3

Step-by-step explanation:

6(x+2)=30

6x + 12 = 30

      -12    -12

6x = 18

x = 3

Hope this helps :)

Answer:

it  X+3

it 3 hope this help yuuu

Step-by-step explanation: 6(x+2)=30

6x+6.2=5

6(x+2)=30

6x + 12 = 30

     -12    -12

6x = 18

x = 3

hope this help the best answer is X=3

tht the bnest answer for the q