ngl this so hard man i don't understand it

Answer:

I might think 124 is the answer

Answer:

128

Step-by-step explanation:

attached..........

Answer:

between 10 and 12

Step-by-step explanation:

Given the measure of angles:

m∠B = 70°

m∠C = 60°

m∠A = 50°

Following this information, since the side lengths are directly proportional to the angle measure they see:

Angle B is the largest angle. Therefore, side AC is the longest side of the triangle since it is opposite of the largest angle.

Angle C is the smallest angle, so the side AB is the shortest side.

Therefore, side BC must be between 10 and 12 inches.

The profit corresponding to a production level of 8,000 units is -$12,500 (a) loss of $12,500), and the profit corresponding to a production level of 13,000 units is $12,500.

a) The cost function C(x) represents the total cost incurred by the manufacturer as a function of the number of units produced (x). It consists of the fixed cost plus the variable cost per unit. In this case, the fixed cost is $52,500, and the variable cost per unit is $8. Therefore, the cost function is:C(x) = 52,500 + 8x. (b) The revenue function R(x) represents the total revenue generated by selling x units. The revenue per unit is $13. Therefore, the revenue function is: R(x) = 13x. (c) The profit function P(x) represents the difference between the revenue and the cost. It is given by: P(x) = R(x) - C(x). Substituting the previously determined expressions for R(x) and C(x), we have:P(x) = 13x - (52,500 + 8x) = 5x - 52,500.

(d) To compute the profit (loss) corresponding to production levels of 8,000 and 13,000 units, we substitute the values of x into the profit function: P(8,000) = 5(8,000) - 52,500 = 40,000 - 52,500 = -12,500. P(13,000) = 5(13,000) - 52,500 = 65,000 - 52,500 = 12,500. Therefore, the profit corresponding to a production level of 8,000 units is -$12,500 (a loss of $12,500), and the profit corresponding to a production level of 13,000 units is $12,500.

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Using the normal distribution, it is found that she scores less than 192 in 99.3% of games.

In a normal distribution with mean \(\mu\) and standard deviation \(\sigma\), the z-score of a measure X is given by:

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

In this problem, the mean and the standard deviation are given, respectively, by \(\mu = 160, \sigma = 13\).

The proportion of games in which she scores less than 192 is the p-value of Z when X = 192, hence:

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

\(Z = \frac{192 - 160}{13}\)

\(Z = 2.46\)

\(Z = 2.46\) has a p-value of 0.993.

Hence, she scores less than 192 in 99.3% of games.

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If the coefficient of determination is 0.94, we can say that ninety-four percent of the total variation of the dependent variable is explained by the independent variable. The correct answer is: ninety-four percent of the total variation of the dependent variable is explained by the independent variable.

This means that there is a strong positive relationship between the two variables. The coefficient of determination, represented as R², measures the proportion of the total variation in the dependent variable that is explained by the independent variable. In this case, an R² of 0.94 indicates that 94% of the total variation in the dependent variable can be explained by the independent variable. The coefficient of determination does not provide information about the direction or strength of the relationship. The correct answer therefore is ninety-four percent of the total variation of the dependent variable is explained by the independent variable.

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Answer:

Answer is

x= 1/2

Step-by-step explanation:

4/5 x -1/10 =3/10

+1/10. = +1/10

______________

4/5 x = 4/10

x= 4/10* 5/4

x= 1/2

Answer:

B and D

Step-by-step explanation:

Letter B is 2 units below zero. Letter D is 2 units above zero.

Letter B and letter D are the same distance from distance from zero.

Therefore, opposite of letter B is letter D.

Thus, the letters that have their opposite labelled on the number line are B and D.

Answer:

D AND D

Step-by-step explanation:

The transformation of the graph f(x) = x² to the graph g(x) = -3(x+5)² + 12 involves a horizontal shift, a vertical stretch, and a vertical translation.

The graphs of f(x) = x² and g(x) = -3(x+5)² + 12 are the parabola.

The transformation of the graph is following as:

Firstly, the parabola has been shifted horizontally by 5 units to the left, which is reflected in the expression (x+5)².

Secondly, the parabola has been stretched vertically by a factor of -3, which is reflected in the coefficient in front of (x+5)².

Finally, the parabola has been raised up to 12 units. This means that the vertex of the parabola has been shifted upwards from the origin to the point (−5,12).

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The standard matrix of the given linear transformation T is [1 8] [0 1] [0 -1] [1 0].

The question requires us to find the standard matrix of a linear transformation T.

This linear transformation involves two steps: A horizontal shear that transforms e2 into e2 + 8e1 (leaving e1 unchanged) A reflection through the line x2 = -x1

Let's say a vector v in R2 be represented as a column vector (x, y). Now let's apply the given linear transformation T to it. We'll do it in two steps:

Step 1: Applying the horizontal shear to the vector. Recall that T performs a horizontal shear that transforms e2 into e2 + 8e1 (leaving e1 unchanged).

In other words, T(e1) = e1 and T(e2) = e2 + 8e1.

So let's find the image of the vector v under this horizontal shear. Since T is a linear transformation, we can write T(v) as T(v1e1 + v2e2) = v1T(e1) + v2T(e2).

Plugging in the values of T(e1) and T(e2), we get:T(v) = v1e1 + v2(e2 + 8e1) = (v1 + 8v2)e1 + v2e2.

So the image of v under the horizontal shear is given by the vector (v1 + 8v2, v2).

Applying the reflection to the vector. Recall that T also reflects points through the line x2 = -x1.

So if we reflect the image of v obtained in step 1 through this line, we'll get the final image of v under T.

To reflect a vector through the line x2 = -x1, we can first reflect it through the y-axis, then rotate it by 45 degrees, and then reflect it back through the y-axis.

This can be accomplished by the following matrix:  B = [1 0] [0 -1] [0 -1] [1 0] [1 0] [0 -1]

So let's apply this matrix to the image of v obtained in step 1. We have:

(v1 + 8v2, v2)B = (v1 + 8v2, -v2, -v2, v1 + 8v2, v1 + 8v2, -v2)

Multiplying the matrices A and B, we get:A·B = [1 8] [0 1] [0 -1] [1 0]

And this is the standard matrix of T.

Therefore, the standard matrix of the given linear transformation T is [1 8] [0 1] [0 -1] [1 0].

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Answer:

Step-by-step explanation:

Jane's caldles:

Chris's candles:

Profit, if equal per x candles is:

Each will have profit of $10 if 10 candles sell

The probability that the age of a randomly selected driver is less than 27 is 2.1759, which is calculated by integrating the probability density function from 0 to 27.

We can calculate the probability that the age of a randomly selected driver is less than 27 by integrating the probability density function from 0 to 27. First, we need to rewrite the probability density function as \(f(x) = 105/(4x^2).\) Then, we integrate the probability density function from 0 to 27. The integral is \(∫027(105/4x^2)dx.\) We can solve the integral using the power rule, which states that \(∫axn dx = (axn+1)/(n+1) + c.\) This gives us the integral of \(∫027(105/4x^2)dx = (105/4x^3)/3 + c\)evaluated from 0 to 27. Plugging in the values, we get \((105/4*27^3)/3 + c = 2.1759.\)Therefore, the probability that the age of a randomly selected driver is less than 27 is 2.1759.

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Answer:

$1148 will be saved.

Step-by-step explanation:

Linear equation form: y=ax+b

Slope of the equation: (y2-y1)/(x2-x1), (150.50-80.50)/(7-3)= 70/4 = 35/2

So y=35/2x+b

Substitute x and why with (7, 150.50)

7=35/2 *150.5+b

b=28

The equation is 35/2x+28

There is 4 weeks in 16 months.

4*16= 64, 64 weeks.

Substitute 64 into x.

y=35/2 *64+28

y=1148

Hense, after 16 months, $1148 will be saved.

Answer:

27 over 5  improper fraction

5 whole number 2 over 55 mixed

Do you want to know how to write the decimal number 5.4 as a fraction?

Here we will show you step-by-step how to convert 5.4 so you can write it as a fraction.

You can take any number, such as 5.4, and write a 1 as the denominator to make it a fraction and keep the same value, like this:

5.4 / 1

To get rid of the decimal point in the numerator, we count the numbers after the decimal in 5.4, and multiply the numerator and denominator by 10 if it is 1 number, 100 if it is 2 numbers, 1000 if it is 3 numbers, and so on.

Therefore, in this case we multiply the numerator and denominator by 10 to get the following fraction:

54 / 10

Then, we need to divide the numerator and denominator by the greatest common divisor (GCD) to simplify the fraction.

The GCD of 54 and 10 is 2. When we divide the numerator and denominator by 2, we get the following:

27 / 5  

Therefore, 5.4 as a fraction is as follows:

27 / 5

The equation of each line given the y-intercept and x-intercept

5 and -4 is 4y- 20 = 5x.

The line has an x-intercept at x = -4 and y intercept at y = 5 this means that the line passes through the points(,0) and(,5).

Now we find the pitch m of the line passing through the points(,0) and(,5)(x-intercept).

The pitch of the line is

m = y2- y1/ x2- x1

= 5- 0/ 0-(- 4)

= 5/ 4

Point- pitch Formula y = m(x-x1)

where m is the pitch and( x, y) is the given point.

Now substituting the values

y- 0 = (5/4)( x-(- 4))

y = (5/4)( x 4)

4y- 20 = 5x

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The complete question :

Find the equation of the line that has an y intercept and x-intercept at

5 and -4.

​

The graph of the parabola for the quadratic function, f(x) = x² -12·x + 27, with the vertex point (6, -9), and the y-intercept, (0, 27), created with MS Excel is attached, please find

The x-coordinates of the vertex of the parabola with an equation of the form; f(x) a·x² + b·x + c are;

-b/(2·a)

The specified quadratic function is f(x) = x² - 12·x + 27

Therefore, a = 1, b = -12, and c = 27

The x-coordinate of the vertex is; x = -(-12)/(2 × 1) = 6

The y-coordinate of the vertex is therefore;

f(6) = 6² - 12 × 6 + 27 = -9

The coordinate of the vertex is therefore; (6, -9)

A point on the graph, such as the y-intercept can be found as follows;

f(0) = 0² - 12 × 0 + 27 = 27

The y-intercept of the graph is (0, 27)

Please find attached the graph of the parabola of the function f(x) = x² - 12·x + 27, created with MS Excel

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\(mean = \frac{sum \: of \: all \: observations}{number \: of \: observations} \\ = > mean = \frac{( - 6) + ( - 10) + ( - 4) + 8 + 9 + ( - 2) + 5 + 6}{8} \\ = > mean = \frac{6}{8} \\ = > mean = 0.75\)

This is the answer.

If two angles be 10x + 5 and 15x - 30 then the value of x = 7.

Let the two angles be 10x + 5 and 15x - 30.

simplifying the above two equations, we get

10x + 5 = 15x - 30

Subtract 5 from both sides

10x + 5 - 5 = 15x - 30 - 5

Simplifying the above equations,

10x = 15x - 35

Subtract 15x from both sides of the equation

10x - 15x = 15x - 35 - 15x

Simplifying the above equation, we get

-5x = -35

Divide both sides by -5

\($\frac{-5 x}{-5}=\frac{-35}{-5}\)

x = 7

Therefore, the value of x = 7.

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Answer:

mobility is a general characteristic of animals

Step-by-step explanation:

spinal cord is apart of an animal and nervous system is a system in animals autrotrophic is the feeding mode of plants

specialized tissue is a collection of cells specialized to perform the same function

Answer:

a = √a b = √5 c = √10

ac/b = (√a)(√10)/√5

= √ 10 × a /√5

= √10a / √5

Rationalize the surd

√10a ×√5/(√5)²

= √50a /5

= 5√2a/ 5

= √2a

The final answer is √2a

Hope this helps

Answer:

960 calories in 6 cups of cereal

Step-by-step explanation:

Answer:96

Step-by-step explanation:

16 is in the 4/4 and 16 x 6 is 96

The present value of payments at the end of each quarter of $245 for ten years with an interest rate of 4.35% compounded monthly is approximately $25,833.42.

To find the present value of the payments, we can use the present value formula for an ordinary annuity. The formula for the present value of an ordinary annuity is:
PV = PMT * ((1 - (1 + r)^(-n)) / r)

Where:
PV = Present Value
PMT = Payment amount
r = Interest rate per period
n = Number of periods

In this case, the payment amount is $245, the interest rate is 4.35% compounded monthly, and the number of periods is 10 years or 40 quarters (since there are 4 quarters in a year).

Let's plug in the values into the formula:
PV = $245 * ((1 - (1 + 0.0435/12)^(-40)) / (0.0435/12))

First, let's simplify the exponent part:
(1 + 0.0435/12)^(-40) ≈ 0.617349

Now, let's plug in the values and calculate:
PV = $245 * ((1 - 0.617349) / (0.0435/12))
PV = $245 * (0.382651 / 0.003625)
PV = $245 * 105.4486339
PV ≈ $25,833.42

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Answer:

c = √746

Step-by-step explanation:

You need to use Pythagorean Theorem (a² + b² = c²) in order to solve for the hypotenuse.

25² + 11² = c²

625 + 121 = c²

746 = c²

√746 = c

Answer:

let the larger and  smaller number be x and y respectively

first condition

x + y = 49

second condition

3x = 2y+97

3x-2y =97

Multiplying first condition by two and adding both equations

2x + 2y = 98

3x -2y = 97

5x =  195

x = 195/5 = 39

putting the value of x in

x + y = 49

y = 49 -39 = 10

again

Step-by-step explanation:

Answer:

3 treats each.

Step-by-step explanation:

3 cats divided by 10 = 9 remainder 1 and 3 times 3 = 9.

The general formula for the nth term of the series is:an = 13 + 17² + 19² + ... + (n-2)pn² where p1, p2, ... are the first n-2 prime numbers.

This formula gives the nth term of the given series and not the partial sum of the series.

The given series is 13, 19, 127, 181, ... Let's analyze the given series.

Notice that the given series contains prime numbers. Also, each term of the series is obtained by adding the previous term to the square of the previous prime number.

With this observation, we can conclude that the nth term of the series can be represented by the formula:an = a1 + p1² + p2² + ... + (n-2)pn² where p1, p2, ... are the first n-2 prime numbers.

The first term a1 = 13, p1 = 17, p2 = 19 and so on.

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A sample size of at least 70 would be required to estimate the mean per capita income at an 80% confidence level with a maximum error of $0.51.

To determine the required sample size to estimate the mean per capita income with a specified level of confidence and maximum error, we can use the formula:

n = (Z * σ / E)^2

Where:

n = required sample size

Z = z-value corresponding to the desired level of confidence

σ = population standard deviation

E = maximum allowable error

Given:

Mean income (μ) = $22.2

Variance (σ^2) = $136.89

Confidence level = 80% (which corresponds to a z-value of 1.28 for a two-tailed test)

Maximum error (E) = $0.51

Substituting the values into the formula:

n = (1.28 * √136.89 / 0.51)^2

Calculating the value inside the parentheses:

1.28 * √136.89 / 0.51 ≈ 8.33

Squaring the result:

(8.33)^2 ≈ 69.44

Rounding up to the next integer:

n = 70

Therefore, a sample size of at least 70 would be required to estimate the mean per capita income at an 80% confidence level with a maximum error of $0.51.

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Answer:

s 7 + 46  = 49 is s  =  7 √ 3 or s  =  1.16993081 …

Step-by-step explanation:

Exact Form:

s  =  7 √ 3

Decimal Form:

s  =  1.16993081 …