i need helppppppp??????????

The required equation of the line perpendicular to y=4 that passes through (-5,-2) is: x = -5

The equation of the line y=4 is a horizontal line that passes through the point (0,4).

A line perpendicular to this line would be a vertical line passing through the point (-5,-2).

The equation of a vertical line passing through the point (-5,-2) can be written in the form x = -5,

which means that the x-coordinate of any point on this line must be -5.

Therefore, the equation of the line perpendicular to y=4 that passes through (-5,-2) is: x = -5

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The finance charge on a $15,820 car loan if monthly payments were $325 for 60 months is: $3,680.

The total amount paid over 60 months is:

Total amount paid = $325/month x 60 months

Total amount paid = $19,500

The amount of interest paid is:

Amount of interest = $19,500 - $15,820

Amount of interest = $3,680

Therefore, the finance charge on the car loan is $3,680.

Therefore the finance charge is $3,680.

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It will take 1/4 of an hour, or 15 minutes, to fill an empty pool when both pipes are turned on by mistake.

The speed at which a variable changes over a specific amount of time is referred to as the rate of change. It is frequently represented in mathematics as a function's derivative, which gauges how quickly the function's output alters in relation to its input.

We must first ascertain the rates of each pipe in order to solve this issue using the rate of work formula. Let r in and r out represent the corresponding flow rates of the inlet and output pipes.

The rate of the inflow pipe is 1/3 of the pool per hour because it may fill the pool in three hours. The outlet pipe's rate is 1/12 of the pool each hour since it can drain the entire pool in 12 hours.

The net rate is the difference between the inlet and output rates because when both pipelines are operating, they compete with one another:

r_net = r_in - r_out = 1/3 - 1/12 = 1/4 of the pool per hour

This means that the pool will be filled with a net rate of 1/4 of the pool per hour. Using the rate of work formula, we can now solve for the amount of time it takes to fill the pool:

A = r / t

t = r / A

Substituting r_net = 1/4 and A = 1 (since we want to fill one pool), we get:

t = (1/4) / 1 = 1/4 hours

Hence, it will take 1/4 of an hour, or 15 minutes, to fill an empty pool when both pipes are turned on by mistake.

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As a result, after 14 years, the investment that was compounded interest irregularly will be valued $961.54 more than the one that was compounded yearly.

By dividing the principal by the interest rate, the passage of time, and other factors, simple interest is determined. Simple return equals principle plus interest plus hours is the formula used in marketing. The easiest way to compute interest is by using this method. The most typical method for calculating interest is as a portion of the principle amount. For example, if he borrows $100 from a buddy and agrees to pay back the loan at 5% interest, he will only pay his share of the 100% interest. $100 (0.05) = $5. When you borrow money, you must pay interest, and you must charge interest when you lend it. Typically, interest is determined as an annual percentage of the loan total. The loan's interest is the name given to this percentage.

We must apply the compound interest calculation in order to compare the values of the investment compounded annually with the investment compounded periodically:

[tex]A = P(1 + r/n)^(nt) (nt)[/tex]

where:

A is the total sum.

The principal is P. (the initial amount)

n is the number of times the interest is compounded each year, and r is the yearly interest rate (expressed as a decimal).

The number of years is t.

We have the following for the yearly compounded investment:

[tex]A = 9000(1 + 0.06/1)^(1*14) = $20,207.97[/tex]

Periodically compounded investment results in:

[tex]A = 9000(1 + 0.06/12)^(12*14) = $21,168.51[/tex]

As a result, after 14 years, the investment that was compounded irregularly will be valued $961.54 more than the one that was compounded yearly.

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The slope of the line that passes through the two points is 2.

The equation of the straight line that is inclined at a specific angle to the x-axis and passes at a specific point may be found using the point slope form. A line's equation is an equation that each and every point on the line can solve. Hence, a line may be represented by a linear equation with two variables. Depending on the information at hand, a line's equation can be discovered using a variety of techniques. Among the techniques are: Slope form at a point. Slope-intercept pattern

The equation of the slope is given as:

slope = (change in y-coordinates) / (change in x-coordinates)

Here, for the given condition we have:

slope = (6) / (3) = 2

Therefore, the slope of the line that passes through the two points is 2.

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Answer:

24inches ²

Step-by-step explanation:

Scale of length is 20ft : 4inches = 5ft : 1inch

Scale of width will be 5ft: 1inch = 30ft: 6inches

Area of scale =length x width

Area = 4inches x 6inces

The z-statistics for the given situations are 20, 12.5, 18.4766, 1.7775, and 13.6293 respectively.

To calculate the z-statistic (z), we use the formula: z = (X - μ) / (σ / √N),

where X is the observed value,

μ is the mean,

σ is the standard deviation,

and N is the sample size.

A.) X = 8.00; μ = 5; σ = 0.6; N = 16
z = (8.00 - 5) / (0.6 / √16) = 3 / (0.6 / 4) = 3 / 0.15 = 20

B.) X = 4.00; μ = 2; σ = 0.8; N = 25
z = (4.00 - 2) / (0.8 / √25) = 2 / (0.8 / 5) = 2 / 0.16 = 12.5

C.) X = 11.50; μ = 9.25; σ = 0.75; N = 38
z = (11.50 - 9.25) / (0.75 / √38) = 2.25 / (0.75 / 6.1644) = 2.25 / 0.1218 = 18.4766

D.) X = 0.95; μ = 0.82; σ = 0.31; N = 18
z = (0.95 - 0.82) / (0.31 / √18) = 0.13 / (0.31 / 4.2426) = 0.13 / 0.0731 = 1.7775

E.) X = 8.14; μ = 4.69; σ = 1.29; N = 26
z = (8.14 - 4.69) / (1.29 / √26) = 3.45 / (1.29 / 5.099) = 3.45 / 0.2531 = 13.6293

Therefore, the z-statistics for the given situations are 20, 12.5, 18.4766, 1.7775, and 13.6293 respectively.

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The statement "W1 (+) W2 if and only if the expression 0=0+0 is the only expression of the vector 0 as sum of a vector in W1 and another in W2" is equivalent to the statement "W1 (+) W2 if and only if W1 ∩ W2 = {0}".

Proof:

(⇒) Assume that W1 (+) W2. This means that for any vector v ∈ V, there exist unique vectors w1 ∈ W1 and w2 ∈ W2 such that v = w1 + w2. In particular, for the vector 0 ∈ V, there exist unique vectors w1 ∈ W1 and w2 ∈ W2 such that 0 = w1 + w2. Since 0 is the additive identity, we must have w1 = 0 and w2 = 0. Therefore, the only vector in the intersection of W1 and W2 is the zero vector, so W1 ∩ W2 = {0}.

(⇐) Assume that W1 ∩ W2 = {0}. Let v ∈ V be an arbitrary vector, and suppose that there exist vectors w1, w1' ∈ W1 and w2, w2' ∈ W2 such that v = w1 + w2 = w1' + w2'. Then we have w1 - w1' = w2' - w2 ∈ W1 ∩ W2. But since W1 ∩ W2 = {0}, we must have w1 - w1' = 0 and w2' - w2 = 0, which implies that w1 = w1' and w2 = w2'. Therefore, the expression v = w1 + w2 is unique, so W1 (+) W2.

Thus, we have shown that W1 (+) W2 if and only if W1 ∩ W2 = {0}.

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Answer:

Since TS is a tangent to the circle PQRS, we know that the tangent line is perpendicular to the radius that intersects the point of tangency, which is S in this case.

Let O be the center of the circle. We can draw a radius from O to S, which intersects TS at point T, forming a right triangle OST.

Since /PR/-/PS/, we know that angles PSR and PRS are acute angles, which means that angle PSO is also an acute angle. This means that angle OST is complementary to angle PSO.

So, angle OST = 90 - angle PSO. But we know that angle PSO = angle PQR, since they are both subtended by the same arc PR. Therefore:

angle OST = 90 - angle PSO = 90 - angle PQR = 90 - 17 = 73 degrees.

Therefore, RST = angle TSR = 180 - angle OST = 180 - 73 = 107 degrees.

Step-by-step explanation:

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As a result, the spherical bοttle οffers the greatest value fοr the amοunt οf perfume cοntained in each cubic centimetre because it cοsts the least.

The measurement οf a three-dimensiοnal οbject's space filled is its vοlume. Mοst οften, it is expressed in cubic measures like cubic metres, cubic centimetres, οr cubic feet. The vοlume οf a cube, fοr instance, can be calculated by multiplying its length, breadth, and height. Calculating a cube's vοlume is as fοllοws:

Capacity is calculated using the fοrmula LWH.

given:

The fοrmula V = pi x r² x h, where r is the radius οf the circular base and h is the height οf the bοttle, must be used tο determine the perfume cοntainer's vοlume. Hοwever, we are unable tο determine the vοlume because we lack the values fοr r and h. The fοrmula V = 4/3 π x r³, where r is the radius οf the spherical cοntainer, must be used tο determine the vοlume οf the perfume bοttle. Hοwever, we are unable tο determine the vοlume because we lack the value fοr r.

Price per cubic centimetre = $54.00 / 282.74 cm³ = $0.191 per cm³ Vοlume οf cylindrical cοntainer = π x (3 cm)²x 10 cm = 282.74 cm³

Cοnical cοntainer vοlume equals 1/3 π x (2 cm) 2 x 8 cm = 16.76 cm³.

$20.00 divided by 16.76 cm3 (price per cubic centimetre) yields $1.19 per cm3.

The vοlume οf a sphere is equal tο 4/3 π  x (4 cm)³ = 268.08 cm³.

$35.00 divided by 268.08 centimetres squared equals $0.13 per centimetre.

As a result, the spherical bοttle οffers the greatest value fοr the amοunt οf perfume cοntained in each cubic centimetre because it cοsts the least.

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The artist sold 32 smaller candles and 20 larger candles.

An equation is a mathematical statement that shows the equality of two expressions. It contains an equals sign (=) and at least one variable. An equation can be true or false depending on the values of the variables. Solving an equation involves finding the value or values of the variable that make the equation true. Equations are used to model relationships between different quantities in a wide range of fields, including mathematics, physics, chemistry, economics, and engineering.

A. Let's represent the number of smaller candles sold as x and the number of larger candles sold as y. We know that x + y = 52 (since a total of 52 candles were sold) and 4x + 7y = 269 (since the total sales was $269 and smaller candles sell for $4 and larger candles sell for $7). We can use these two equations to solve for x and y.

Multiplying the first equation by 4, we get 4x + 4y = 208. Subtracting this from the second equation, we get:

4x + 7y - (4x + 4y) = 269 - 208

3y = 61

y = 20.33

This means that the artist sold 20.33 larger candles. However, since we cannot sell a fractional part of a candle, we need to round this down to 20. Similarly, we can find x by subtracting y from 52:

x = 52 - y = 52 - 20 = 32

So the artist sold 32 smaller candles and 20 larger candles.

B. The answer is reasonable since the number of smaller candles sold is larger than the number of larger candles sold, and the total sales amount is closer to the price of the smaller candle than the larger candle. This implies that the artist's records are likely accurate.

Therefore, the artist sold 32 smaller candles and 20 larger candles.

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the answer is 6 uniforms. 57/9.5=6

The set of vectors of the form (a, 3a, a + b) is not a subspace of R3.

To be a subspace of R3, a set must satisfy the following conditions:
1. The set must be closed under addition.
2. The set must be closed under scalar multiplication.
3. The set must contain the zero vector.

Let's check if the set satisfies these conditions:

1. Closed under addition:
Let u = (a, 3a, a + b) and v = (c, 3c, c + d) be two vectors in the set. The sum of these vectors is u + v = (a + c, 3a + 3c, a + b + c + d). This vector is not in the set because the third component is not of the form a + b. Therefore, the set is not closed under addition.

2. Closed under scalar multiplication:
Let u = (a, 3a, a + b) be a vector in the set and k be a scalar. The scalar multiplication of u and k is ku = (ka, 3ka, ka + kb). This vector is not in the set because the third component is not of the form a + b. Therefore, the set is not closed under scalar multiplication.

3. Contains the zero vector:
The zero vector in R3 is (0, 0, 0). This vector is not in the set because the third component is not of the form a + b. Therefore, the set does not contain the zero vector.

Since the set does not satisfy the conditions to be a subspace of R3, it is not a subspace. Therefore, there is no basis or dimension for this set.

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The two linear equations with infinitely many solutions and a y-intercept of -2 are y = x - 2 and y - x = -2.

We can use the y-intercept (-2) and another point on the line to calculate the slope. Since we are looking for infinitely many solutions, we can choose any point. Let's choose the point (0, 1):

slope = (y2 - y1) / (x2 - x1) = (-2 - 1) / (0 - 1) = -3

Now we know that the slope of one of the lines is -3. We can use this information to find the equation of the line. We can use the point-slope form of a linear equation:

y - y1 = m(x - x1)

where m is the slope and (x1, y1) is a point on the line.

Let's use the point (0, -2):

y - (-2) = -3(x - 0)y + 2 = -3xy = -3x - 2y = -3(0) - 2 = -2y = mx - 2y = -3x - 2y = x - 2y - x = -2

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To find the determinant of the given 5x5 matrix A, we need to convert it into an upper triangular form.

This means that all the values below the diagonal elements should be 0. Once we have the upper triangular form, we can find the determinant by taking the product of the diagonal elements.

To convert the given matrix into an upper triangular form, we can use elementary row operations. We can subtract multiples of the first row from the other rows to make the values below the first element 0. Then we can do the same for the second row, third row, and so on until we have an upper triangular matrix.

Once we have the upper triangular matrix, we can find the determinant by taking the product of the diagonal elements. The determinant of the given matrix A is the product of the diagonal elements of the upper triangular matrix.

So the steps to find the determinant of the given matrix A are:
1. Convert the given matrix into an upper triangular form using elementary row operations.
2. Take the product of the diagonal elements of the upper triangular matrix to find the determinant.

By following these steps, we can find the determinant of the given 5x5 matrix A.

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We predict that Ed should draw about 1 blue marble out of the 4 draws. The closest option is 1.

What is probability?

Probability is a branch of mathematics in which the chances of experiments occurring are calculated. It is by means of a probability, for example, that we can know from the chance of getting heads or tails in the launch of a coin to the chance of error in research.

There are 4 colors of marbles, each with 8 marbles in the bag, so the probability of drawing a blue marble on any given draw is:

P(blue) = 8/32 = 1/4

Since Ed is drawing 4 marbles with replacement, the probability of drawing a blue marble on each individual draw is the same:

P(blue) = 1/4

The probability of drawing a blue marble exactly k times out of 4 draws can be calculated using the binomial probability formula:

P(k blue out of 4) [tex]= (4 choose k) * (1/4)^k * (3/4)^{(4-k)[/tex]

where (4 choose k) is the binomial coefficient, which gives the number of ways to choose k blue marbles out of 4 draws.

E(number of blue) = Σ(k * P(k blue out of 4)), summed over all possible values of k from 0 to 4.

This calculation can be done directly or by using the formula:

E(number of blue) = n * P(blue)

where n is the total number of draws (4 in this case) and P(blue) is the probability of drawing a blue marble on each draw.

Using this formula, we get:

E(number of blue) = 4 * (1/4) = 1

Therefore, we predict that Ed should draw about 1 blue marble out of the 4 draws. The closest option is 1.

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The quotient is x^2+2x+3, and the remainder is 7.

The quotient and remainder of the given expression can be found using long division. Here are the steps:

1. Divide the first term of the dividend, x^3, by the first term of the divisor, x. This gives you the first term of the quotient, x^2.
2. Multiply the first term of the quotient, x^2, by the divisor, x+2. This gives you x^3+2x^2.
3. Subtract this result from the dividend, x^3+4x^2+7x+13, to get the new dividend, 2x^2+7x+13.
4. Repeat the process with the new dividend, 2x^2+7x+13, and the divisor, x+2. The first term of the quotient is 2x, and the result of the multiplication is 2x^2+4x.
5. Subtract this result from the new dividend, 2x^2+7x+13, to get the new dividend, 3x+13.
6. Repeat the process with the new dividend, 3x+13, and the divisor, x+2. The first term of the quotient is 3, and the result of the multiplication is 3x+6.
7. Subtract this result from the new dividend, 3x+13, to get the remainder, 7.

Therefore, the answer is:

The quotient is x^2+2x+3.
The remainder is 7.

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The number of seats available in the small jets and large jet are 63 and 81 respectively.

A set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought.

Given that, Jasper noticed with 2 small jets and 5 large jets, which could seat a total of 531 passengers and 5 small jets and 5 large jets, which could seat a total of 720 passengers.

Let the number of seats available in the small jets and large jet be x and y,

Establishing the system of equations to solve,

2x+5y = 531......(i)

5x+5y = 720.......(ii)

Subtracting the equation (i) from eq(ii)

3x = 189

x = 63

Put x = 63

5(63)+5y = 720

5y = 405

y = 81

Hence, the number of seats available in the small jets and large jet are 63 and 81 respectively.

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The intercepts of the line are (-3, 0) and (0, -6/5).

What is intercepts ?

In mathematics, intercepts refer to the points at which a line or curve intersects the x-axis or the y-axis of a coordinate plane.

To find the x-intercept, we need to set y = 0 and solve for x:

2x + 5(0) = -6

2x = -6

x = -3

Therefore, the x-intercept is (-3, 0).

To find the y-intercept, we need to set x = 0 and solve for y:

2(0) + 5y = -6

5y = -6

y = -6/5

Therefore, the y-intercept is (0, -6/5).

Thus, the intercepts of the line are (-3, 0) and (0, -6/5).

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The graph of the piece-wise function is given by the image presented at the end of the answer.

A piece-wise function is a mathematical function that is defined by different formulas or expressions over different intervals or pieces of its domain, that is, the function has different definitions based on it's input.

The intervals for which the function has different definitions are given as follows:

The definitions for each interval are given as follows:

Hence the graph of the function, containing these three definitions, is given by the image presented at the end of the answer.

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Answer:

Your answer is <PBD = 56

Step-by-step explanation:

That red square indicate that its a right triangle meaning that <PBH is 90°

Those two angle <PBD and <DBH are complementary angle meaning that those two angle add up to 90°

So,

<PBD + <DBH = 90°

(3k + 65°) + 34 = 90

3k + 65 + 34 = 90

3k = -9

k = -3

Plug in k = -3 in <PBD to solve for the measure angle.

<PBD = (3k + 65°) ; k = -3

<PBD = 3(-3) + 65

<PBD = -9 + 65

<PBD = 56

Answer: C

Step-by-step explanation: What is an example of cubic trinomial?

Cubic Trinomials of the Form Ax^3 + Bx+^2 + Cx

For example, the greatest common factor of the trinomial 3x^3 - 6x^2 - 9x is 3x, so the polynomial is equal to 3x times the trinomial x^2 - 2x -3, or 3x*(x^2 - 2x - 3).

After performing the indicated operation, the sum of (7)/(10x²y) + (4)/(15xy²) is (21y + 8x)/(30x²y²).

To perform the indicated operations, we need to find a common denominator for the two fractions. The common denominator for 10x²y and 15xy² is 30x²y². We can then rewrite the fractions with the common denominator and add them together:

(7)/(10x²y) + (4)/(15xy²)

To do this, multiply both fractions by 30x²y²/30x²y² and simplify as a fraction with denominator 30x²y².
= (7)/(10x²y)(30x²y²/30x²y²) + (4)/(15xy²)(30x²y²/30x²y²)
= (21y)/(30x²y²) + (8x)/(30x²y²)

Finally, since the denominators of the two fractions are the same, add the two fractions by adding their numerators.
= (21y + 8x)/(30x²y²)

Therefore, the answer is (21y + 8x)/(30x²y²).

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This means that for each hour worked, Jean earns $12, and the total earnings y increase linearly with the number of hours x worked.

In mathematics, an equation is a statement that two expressions are equal. It contains an equals sign (=) between two expressions, which are usually composed of variables, constants, and mathematical operations.

For example, the equation:

2x + 3 = 7

states that the sum of two times x and three is equal to seven. This equation can be solved to find the value of x that satisfies it.

Equations can be used to model and solve a wide range of problems in mathematics and science, including algebraic, geometric, and physical problems.

Assuming that Jean earns a fixed hourly rate, we can use the equation:

y = kx

where y is the total earnings, x is the number of hours worked, and k is the hourly rate.

For example, if Jean earns $12 per hour, the equation would be:

y = 12x

This means that for each hour worked, Jean earns $12, and the total earnings y increase linearly with the number of hours x worked.

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The triangle is an obtuse triangle.

What is a valid triangle?

A valid triangle is a geometric figure with three sides and three angles. To be considered a valid triangle, it must satisfy the following conditions:

1. The sum of the lengths of any two sides must be greater than the length of the third side. This is known as the Triangle Inequality Theorem, and it ensures that the three sides can form a closed figure.

2. The measure of each angle must be less than 180 degrees. This is known as the Angle Sum Theorem, and it ensures that the three angles can fit inside a two-dimensional plane.

The sum of the angles of any triangle is always 180 degrees.

So, if a triangle has angle measurements of 3°, 35°, and 142°, we can add them up to check whether they add up to 180 degrees:

3° + 35° + 142° = 180°

Since the sum of the angles is 180 degrees, the triangle is a valid triangle.

Now, we can classify the triangle based on the measure of its angles. Since the measure of one angle (142°) is greater than 90 degrees, the triangle is an obtuse triangle.

We cannot determine the length of the sides of the triangle based on the angle measures provided. So, we cannot classify the triangle based on the length of its sides.

Therefore, the triangle is an obtuse triangle.

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Answer: the first graph ! :)

Step-by-step explanation:

it is the very first one.

The tank can hold up to average 90,000 gallons of water, since it is already filled with 54,000 gallons and 60% of that is food.

Volume = πr2h

= 3.14 x (15 feet)2 x 18 feet

= 15,444.4 cubic feet

15,444.4 cubic feet x 7.48 gallons/cubic feet = 115,511.17 gallons

115,511.17 gallons - 54,000 gallons = 61,511.17 gallons

61,511.17 gallons + 54,000 gallons = 115,511.17 gallons

115,511.17 gallons is the total capacity of the tank.

The tank is able to hold up to 90,000 gallons of water, since it already contains 54,000 gallons and 60% of that is food. This means that the tank can still hold up to 36,000 gallons of water, giving it a total capacity of 90,000 gallons. This is possible because the tank is in the shape of a cylinder, which means that the volume of the tank is determined by the formula V = πr2h, where V is the volume, r is the radius, and h is the height. This means that the tank can be adjusted accordingly to increase or decrease the amount of water it can hold. In this case, the tank is able to hold up to 90,000 gallons of water because the capacity of the tank is determined by the size of its radius and height, and can be adjusted accordingly to increase or decrease the amount of water it can hold.

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The x value where P(X < x)=0.0655 is 4 minutes. The correct answer is c. 3.96 minutes.

To find the x value where P(X < x)=0.0655, we can use the z-score formula and look up the corresponding z-value in a standard normal distribution table. The z-score formula is:

z = (x - mean) / standard deviation

Substituting the given values, we get:

0.0655 = (x - 10) / 4

Next, we can look up the z-value that corresponds to 0.0655 in a standard normal distribution table. We find that the z-value is approximately -1.5. Now we can plug this back into the z-score formula and solve for x:

-1.5 = (x - 10) / 4

-6 = x - 10

x = 4

Therefore, the x value where P(X < x)=0.0655 is 4 minutes. The correct answer is c. 3.96 minutes.

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