What is the value of the expression 14(3+52÷4)?

Answer:

11 yards.

Step-by-step explanation:

A cylinder's volume is π r² h

Where π = 3.14

r = 4 (since radius is half of diameter)

v (volume) = 552.64

So in this case we are solving for h, height.

So rewrite:

552.64 = (3.14)(4)^2(h)

So now we solve:

1. Evaluate exponent:

552.64 = (3.14)(16)(h)

2. Multiply

552.64 = 50.24h

3. Divide to get h by itself

552.64 / 50.24 = 50.24 / 50.24 (h)

11 = h

Hence the height of the cylinder is 11 yards.

Also I’ve attached below pictures to help further prove. The 10.99 is rounded up to 11.

The function: f(x) = x³ – 3x²+6: (a) The critical values of f(x) are x=1 and x=2. (b) The function is increasing on the intervals (-∞, 1) and (2, ∞), (c) The location of the local minimum is at x=1, and the local maximum is at x=2, (d) The function is concave up on the interval (2, ∞) and concave down on the interval (-∞, 2).

(a) To find the critical values of f(x), we take the derivative of f(x) and set it equal to zero: f'(x) = 3x² - 6x = 3x(x-2). Setting f'(x) = 0, we get x=0 and x=2 as the critical values. However, x=0 is not in the domain of the function, so we discard it.

(b) To determine the intervals where the function is increasing and decreasing, we use the first derivative test. On the interval (-∞, 1), f'(x) is negative, so the function is decreasing. On the interval (1, 2), f'(x) is positive, so the function is increasing. On the interval (2, ∞), f'(x) is positive, so the function is increasing.

(c) To find the location of the local minimum and maximum, we use the second derivative test. The second derivative of f(x) is f''(x) = 6x - 6. At x=1, f''(1) is negative, so the function has a local maximum at x=1. At x=2, f''(2) is positive, so the function has a local minimum at x=2.

(d) To determine the intervals where the function is concave up and concave down, we use the second derivative test. The function is concave up on the interval (2, ∞), where f''(x) is positive, and concave down on the interval (-∞, 2), where f''(x) is negative.

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The weakest precondition for the sequence of statements a = b - 34 ; b = a - 20 is that b is an integer value. This is because the sequence of statements starts with b and then calculates a using b. Therefore, b must be a defined value before the calculation of a can occur.

Additionally, since the statements only involve subtraction and assignment, there are no division or multiplication operations that could cause errors or restrictions on the input values. As a result, the weakest precondition is simply that b is an integer.

It is important to note that while this precondition is sufficient for the sequence to execute without errors, it may not necessarily result in the desired outcome or behavior. This would depend on the specific values of b and a that are used in the sequence.

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Answer:

The paint needed is the surface area of the cylinder is 296.73 cm².

Step-by-step explanation:

Circumference = diameter × π = 7 cm × 3.14 = 21.98 cmLateral surface area = height × circumference = 10 cm × 21.98 cm = 219.80 cm²The area of each circular top/bottom is given by:Area of circle = π × radius²The radius is half of the diameter, which is 7/2 = 3.5 cm.Area of each circle = π × (3.5 cm)² = 38.48 cm²The total surface area of the soup can is the sum of the lateral surface area and the two circular areas:Total surface area = Lateral surface area + 2 × Area of each circleTotal surface area = 219.80 cm² + 2 × 38.48 cm²Total surface area = 296.76 cm² Therefore, the answer is approximately 296.73 cm².

Answer:

296.73 cm²

Step-by-step explanation:

We have proved that (x + 1)dy/dx + (x + 1)y - 4y = 0, which means that the expression is true.

To solve this problem, we need to use some algebraic manipulations and the properties of the derivative of sin(x) with respect to x.

First, let's simplify the expression inside the sine function:

log(x² + 2x + 1) = log((x + 1)²) = 2log(x + 1)

Substituting this into the original equation, we get:

y = sin(2log(x + 1))

Now, let's take the derivative of both sides of this equation with respect to x:

dy/dx = d/dx(sin(2log(x + 1)))
dy/dx = cos(2log(x + 1)) * d/dx(2log(x + 1))
dy/dx = cos(2log(x + 1)) * 2/(x + 1)

Now, let's simplify the expression we're trying to prove:

(x + 1)dy/dx + (x + 1)y - 4y
= (x + 1)cos(2log(x + 1)) * 2/(x + 1) * sin(2log(x + 1)) + (x + 1)sin(2log(x + 1)) - 4sin(2log(x + 1))
= 2(x + 1)cos(2log(x + 1))sin(2log(x + 1)) + (x + 1)sin(2log(x + 1)) - 4sin(2log(x + 1))
= (2x + 2)sin(2log(x + 1)) - 2sin(2log(x + 1)) - 4sin(2log(x + 1))
= 0

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Answer:

----------------------

First, we need to calculate the agency fee, which is 20% of Marilyn's annual salary:

Next, we add up all the expenses:

Total cost is the sum of the four:

(40-15)! / 40! this the number of ways that cards can be distributed to each child.

To distribute the 3 baseball cards to each of the 5 kids from a total of 40 different cards, you'll first need to determine the total number of cards being given out and the number of combinations for each child.

Since each kid gets 3 cards, there will be a total of 3 * 5 = 15 cards given out, leaving 25 cards for the store.

Now, let's calculate the ways to distribute the cards to each kid. For the first kid, there are 40 cards to choose from, so there are 40 choose 3 (denoted as C(40,3)) ways to select the cards. Similarly, for the second kid, there are 37 remaining cards to choose from, so there are C(37,3) ways. Following the same logic, we have C(34,3) ways for the third kid, C(31,3) ways for the fourth kid, and C(28,3) ways for the fifth kid.

To determine the total number of ways to distribute the cards, you'll need to multiply the combinations for each kid together: C(40,3) * C(37,3) * C(34,3) * C(31,3) * C(28,3). This will give you the total number of ways to distribute the 15 cards among the 5 kids while keeping the remaining 25 cards in the store.

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The length of Raj's string is 54 in long.

A dot chart or dot plot is a statistical chart consisting of data points plotted on a fairly simple scale, typically using filled in circles. There are two common, yet very different, versions of the dot chart.

Given that, Kiki has a piece of string that she cuts into smaller pieces. This line plot shows the lengths of the pieces. Raj has a piece of string that is 12 as long as Kiki's third-longest piece.

The third-longest piece = 4 1/2 in

The length of Raj's string = 4 1/2 x 12 = 9/2 x 12 = 54

Hence, the length of Raj's string is 54 in long.

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True. The 3px, 3py, and 3pz orbitals are similar in shape but differ in their orientation or direction.

The p orbitals are one type of orbital that corresponds to the angular momentum number l = 1. These p orbitals are designated as 3px, 3py, and 3pz to indicate their orientations along the x, y, and z axes, respectively.

The p orbitals have a  shape with a node at the nucleus. They consist of two lobes of electron density, one on either side of the nucleus, separated by a region of zero electron density. The lobes are oriented along the designated axes. The 3px orbital points along the x-axis, the 3py orbital points along the y-axis, and the 3pz orbital points along the z-axis. Although they have different orientations, their shapes and sizes are the same.

So, while the 3px, 3py, and 3pz orbitals differ in their orientation in space, they share the same overall shape and size.

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The missing measures for the triangle are given as follows:

Suppose we have a triangle in which:

The lengths and the sine of the angles are related as follows:

[tex]\frac{\sin{A}}{a} = \frac{\sin{B}}{b} = \frac{\sin{C}}{c}[/tex]

The sum of the measures of the internal angles of a triangle is of 180º, hence the measure of angle B is obtained as follows:

m < B + 81 + 33 = 180

m < B = 180 - 114

m < B = 66º.

Then the relation is:

26/sin(81º) = a/sin(33º) = b/sin(66º).

Then the value of a is obtained as follows:

26/sin(81º) = a/sin(33º)

a = 26 x sine of 33 degrees/sine of 81 degrees

a = 14.3.

The value of b is obtained as follows:

26/sin(81º) = b/sin(66º)

b = 26 x sine of 66 degrees/sine of 81 degrees

b = 24.

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The dimensions of the box will be approximately 4.4 inches by 1.6 inches by 0.8 inches, and its maximum volume will be approximately 5.6 cubic inches.

Let x be the side length of each square flap cut from each corner of the cardboard sheet. Then the length and width of the base of the box will be (6 - 2x) inches and (3 - 2x) inches, respectively, and the height of the box will be x inches. The volume of the box can be expressed as V(x) = [tex]x(6 - 2x)(3 - 2x) = 6x^3 - 30x^2 + 36x.[/tex]

To find the value of x that maximizes the volume, we need to take the derivative of V(x) with respect to x and set it equal to zero:

[tex]V'(x) = 18x^2 - 60x + 36 = 0[/tex]

Solving for x using the quadratic formula, we get:

[tex]x = (60 ± sqrt(60^2 - 4(18)(36))) / (2(18))[/tex]

x ≈ 0.8 or x ≈ 1.5

Since x must be less than 1.5 to ensure that the box can be made from the given cardboard sheet, the value of x that maximizes the volume of the box is x ≈ 0.8 inches.

Therefore, the dimensions of the box will be approximately 4.4 inches by 1.6 inches by 0.8 inches, and its maximum volume will be approximately 5.6 cubic inches.

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To find f(a), we simply plug in the value of a into the function f(x) = 6 / x+3:

f(a) = 6 / a+3

To find f(a+h), we plug in the value of a+h into the same function:

f(a+h) = 6 / (a+h)+3

To find the difference quotient f(a+h)-f(a)/h, we use the formula:

f(a+h)-f(a)/h = [6 / (a+h)+3 - 6 / a+3] / h

Now we simplify this expression:

f(a+h)-f(a)/h = [(6a + 18) - (6a + 6h + 18)] / (h(a + 3)(a + h + 3))

f(a+h)-f(a)/h = [-6h] / (h(a + 3)(a + h + 3))

f(a+h)-f(a)/h = -6 / (a + 3)(a + h + 3)

Therefore, the values of f(a), f(a+h), and the difference quotient f(a+h)-f(a)/h, where h ≠ 0 and h ≠ 6, are:

f(a) = 6 / a+3
f(a+h) = 6 / (a+h)+3
f(a+h)-f(a)/h = -6 / (a+3)(a+h+3)

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114 more children can eat a cake if 38 children finish a quarter of the cake at a party.

Fraction refers to a part of a whole. A quarter refers to the one-fourth of an object. It can be represented as [tex]\frac{1}{4}[/tex].

Given in the question,

Number of children that eat a quarter of cake = 38

Number of children that eat whole cake = 38 * 4

= 152

Cake left = Whole cake - a quarter of the cake

= 1 - [tex]\frac{1}{4}[/tex] = [tex]\frac{3}{4}[/tex]

Number of children that can eat three-fourths of cake = [tex]\frac{3}{4}[/tex] * 152

= 114 children

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The question is given in Spanish and the question in English is:

At a party, the children ate a quarter of the cake. The total number of children who ate cake was 38. How many more children could eat cake until it ran out?

The solution is, : OPTION D: NEITHER, ordered pair is a solution to the equation.

Here, we have,

The given equation is: 7x - 2y = - 5

To find a solution to this, we substitute the options and compare LHS and RHS.

OPTION A: (1, 5)

LHS = 7(1) - 2(5) = 7 - 10 = -3

RHS = - 5

LHS  RHS.

So, this option is eliminated.

OPTION B: (-1, 1)

LHS = 7(-1) - 2(1) = -7 - 2 = - 9

RHS = - 5

Again, LHS ≠ RHS.

So, this Option is eliminated as well.

OPTION C: It says both A and B. Clearly, this is eliminated as well.

This is a two variable equation. So, we need a minimum of two equations to determine the solution. Since, only one equation is given here, we use the help of options.

Therefore, the answer is: OPTION D: NEITHER, ordered pair is a solution to the equation.

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The coordinate plane that shows the graph of the function is the first graph in the second attachment

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

x y

0 1

1 2

2 3

3 4

From the above, we can see that

The x value is added to 1 to get the y value

This means that

The input value is added to 1 to get the output value

So, we have

y = x + 1

From the list of options, the graph that represent the relation is the second graph (first in the second attachment)

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The equation of the line in fully simplified slope-intercept form is y = -7/8x - 7

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

The linear graph

Where we have the points

(0, -7) and (-8, 0)

A linear equation is represented as

y = mx + c

Where

c = y when x = 0

So, we have

y = mx - 7

Next, we have

0 = -8m - 7

Evaluate

m = -7/8

So, we have

y = -7/8x - 7

Hence, the equation of the line in fully simplified slope-intercept form is y = -7/8x - 7

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The displacement of the particle over the given time interval is -310 meters and the distance traveled by the particle over the given time interval is 310 meters.

First, let's clarify the given information:

v(t) = 8 - 20t (velocity function in meters/second)
Time interval: [1, 6]

Now, let's address each part of the question:

a) Find the displacement of the particle over the given time interval:

To find the displacement, we need to integrate the velocity function v(t) to get the position function s(t) and then evaluate the difference in position at the endpoints of the time interval.

1. Integrate v(t): ∫(8 - 20t) dt = 8t - 10t^2 + C (position function s(t))

2. To find the displacement, evaluate s(t) at the endpoints of the interval and find the difference:

Displacement = s(6) - s(1)
= (8(6) - 10(6)^2) - (8(1) - 10(1)^2)
= (48 - 360) - (8 - 10)
= (-312) - (-2)
= -310 meters

b) Find the distance traveled by the particle over the given time interval:

To find the distance traveled, we need to find the absolute value of the integral of the velocity function over the given interval.

1. Since we already have the position function s(t), we can find the distance by evaluating the absolute value of the difference in position:

Distance = |s(6) - s(1)|
= |-310|
= 310 meters

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Tom's deposit of $47.50 involved more money than Sara's withdrawal of $80.

This is because the amount involved in a transaction is determined by the magnitude of the transaction, which is the absolute value of the transaction. In other words, the amount involved in a transaction is determined by the size of the number, regardless of whether it is positive or negative.

Tom's deposit of $47.50 is a larger number than Sara's withdrawal of $80 when considering the absolute value of the transactions. Hence, Tom's deposit involved more money.

The direction of the transaction (whether it is a deposit or withdrawal) does not necessarily indicate the amount involved. The magnitude of the transaction is what determines the amount involved.

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A voltage V across a resistance R generates a current I =V/R. If a constant voltage of 22 volts is put across a resistance that is increasing at a rate of 0.2 ohms per second when the resistance is 5 ohms, The current is changing at a rate of -0.176 amperes per second.

Given the formula I = V/R, where V is the voltage, R is the resistance, and I is the current, we can find the rate at which the current is changing.

With a constant voltage of 22 volts and a resistance increasing at a rate of 0.2 ohms per second when the resistance is 5 ohms, we can use the derivative of the current formula with respect to time.

Let I be the current, V be the voltage (22 volts), R be the resistance (5 ohms), and dR/dt be the rate of change of resistance (0.2 ohms/second). We need to find dI/dt, the rate of change of current.

We have the equation I = V/R. Differentiating both sides with respect to time, we get: dI/dt = -V * (dR/dt) / R^2 Now, plug in the given values: dI/dt = -22 * (0.2) / (5)^2 dI/dt = -4.4 / 25 dI/dt = -0.176 A/s.

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The final answer after differentiating the function is y' = 7(dy/dx) + (7x + 3)* d^2y/dx^2.

To differentiate the function y = (7x + 3)* dy/dx, we need to use the product rule of differentiation. The product rule states that the derivative of the product of two functions is equal to the first function multiplied by the derivative of the second function plus the second function multiplied by the derivative of the first function.

In this case, we have y = (7x + 3)* dy/dx, so we can apply the product rule as follows:

y' = (7x + 3)* d/dx(dy/dx) + dy/dx* d/dx(7x + 3)

The first term can be simplified by using the chain rule, which states that the derivative of a composite function is equal to the derivative of the outer function multiplied by the derivative of the inner function. In this case, the outer function is (7x + 3) and the inner function is dy/dx. So, we get:

d/dx(dy/dx) = d/dy(dy/dx)* dy/dx = d^2y/dx^2

Substituting this back into the equation, we get:

y' = (7x + 3)* d^2y/dx^2 + dy/dx* 7

Simplifying further, we get:

y' = 7(dy/dx) + (7x + 3)* d^2y/dx^2

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The simplified trigonometric expression is sin²t.

Option D is the correct answer.

We have,

Given,

Trigonometric expression:

cost (sect - cost)

[ sec t = 1/ cos t ]

= cost (1/cos t - cos t)

Applying the distributive properties.

= cos t/cos t - cos²t

= 1 - cos²t

= sin²t

(using the trigonometric identity sin²t + cos²t = 1)

Therefore,

The simplified trigonometric expression is sin²t.

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The stability properties of the equilibrium at the origin for all values of a in the system of differential equations dx/dt = Ax depend on the eigenvalues of matrix A.

To determine the stability properties, first find the eigenvalues of matrix A by solving the characteristic equation, det(A - λI) = 0, where λ represents the eigenvalues and I is the identity matrix. Once you obtain the eigenvalues, analyze their real parts:

1. If all real parts are negative, the equilibrium is asymptotically stable.
2. If any real part is positive, the equilibrium is unstable.
3. If all real parts are non-positive, and there are no repeated eigenvalues with zero real parts, the equilibrium is stable.

By examining the eigenvalues, you can determine the stability properties for all values of the real-valued constant a.

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The length of one side of the smaller square is 12 feet, and the length of one side of the larger square is 3 feet longer, or 15 feet.

Let's start by using the formula for the area of a square, which is A = s²   where A is the area and s is the length of one side of the square.

Let y be the length of one side of the smaller square in feet. Then, the length of one side of the larger square is 3 feet longer than y, so it is (y + 3) feet.

The total area of the two squares is given by the equation:

(y + 3)² + y² = 369

Expanding the left side of the equation gives:

y² + 6y + 9 + y² = 369

Simplifying the equation by combining like terms gives:

2y² + 6y - 360 = 0

Dividing both sides of the equation by 2 gives:

y² + 3y - 180 = 0

Now we can solve for y using the quadratic formula:

y = (-b ± √(b² - 4ac)) / 2a

In this case, a = 1, b = 3, and c = -180. Substituting these values into the formula gives:

y = (-3 ± √(3² - 4(1)(-180))) / 2(1)

Simplifying under the square root:

y = (-3 ± √(729)) / 2

y = (-3 ± 27) / 2

We discard the negative solution as it does not make sense in the context of the problem.

y = (24) / 2

y = 12

Therefore, the length of one side of the smaller square is 12 feet, and the length of one side of the larger square is 3 feet longer, or 15 feet.

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so the trapezoidal prism has four rectangles and two trapezoids

[tex]\stackrel{ \textit{two trapezoids} }{2\left( \cfrac{4(6+12)}{2} \right)}~~ + ~~\stackrel{ \textit{left and right} }{2(5)(3)}~~ + ~~\stackrel{ front }{(6)(3)}~~ + ~~\stackrel{ back }{(12)(3)} \\\\\\ 72+30+18+36\implies \text{\LARGE 156}~in^2[/tex]

The data supports the claim made by the transport engineer that the average commuting time is longer than 25.8 minutes.

We can do a hypothesis test using the critical value approach with a predetermined level of significance to see if the data supports the transportation engineer's claim that the mean travel time is longer than 25.8 minutes.

The steps are as follows:

Describe the underlying theory and any alternatives.

The assumption that the mean commuting time is not longer than 25.8 minutes is the null hypothesis (H0).

The contrary hypothesis (Ha) states that the average travel duration exceeds 25.8 minutes.

H0: μ ≤ 25.8 Ha: μ > 25.8

Identify the critical value that corresponds to the significance level.

We need to determine the crucial value from the t-distribution with n-1 degrees of freedom, where n is the sample size, assuming a level of significance of = 0.05 (i.e., a 5% probability of making a Type I error).

We may apply the t-statistic's formula because sample size and population standard deviation are known:

t = ( [tex]\bar{x}[/tex]- μ) / (s / √n) is the sample mean, is the estimated population mean, n is the sample size, and s is the sample standard deviation.

After entering the values from the issue, we obtain:

t = ([tex]\bar{x}[/tex] - μ) / (s / √n)

= (26.4 - 25.8) / (3.6 / √100)

= 1.67

According to a t-distribution table or calculator, the critical value for a one-tailed test at = 0.05 with 99 degrees of freedom is 1.660.

Make a test statistic calculation.

The test statistic was already computed in Step 2: t = 1.67.

Make a choice, then analyse the outcomes.

We reject the null hypothesis and come to the conclusion that there is enough evidence to support the alternative hypothesis that the mean commute time is longer than 25.8 minutes because the estimated test statistic (t = 1.67) is greater than the crucial value (t* = 1.660).

In other words, we can state with 95% certainty that the true population mean commute time is longer than 25.8 minutes based on the sample data.

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The area of four surfaces unpainted in the 6 cubes is 64 cm².

We have,

The volume of the shape = 384 cm³

Number of cubes = 6

This means,

Area of one cube.

= 384/6

= 64 cm³

Now,

Area of cube = side³

So,

side³ = 64

side³ = 4³

side = 4

Now,

There are four surfaces unpainted.

so,

One surface is in the shape of a rectangle.

This means,

One surface area = 4 x 4 = 16 cm²

Now,

Area of four surfaces unpainted.

= 4 x 16

= 64 cm²

Thus,

The area of four surfaces unpainted is 64 cm².

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Step-by-step explanation:

solution:

given,

no. of red balls [n(R)] = 3

no. of white balls [n(W)] = 5

no. of green balls [n(G)] = 10

no. of sample events [n(S)] = 3+5+10 = 18

no. of white or green ball [n(WUG)] = 5+10 = 15

no. of favourable events [n(E)] = 15

probability of favourable events [P(E)] = ?

We know,

P(E) = n(E) / n(S)

= 15/18

= 5/6

Therefore if a ball is chosen at random, the probability that it is either white or green is 5/6.

The current when the resistance is 90 ohms is 2.7 amperes (rounded to one decimal place), with units of amperes.

The relationship between current and resistance is given by the equation I = V/R, where I is the current in amperes, V is the voltage in volts, and R is the resistance in ohms. If we assume that the voltage is constant, then we can use the fact that the current is inversely proportional to the resistance to find the current when the resistance is 90 ohms.

To do this, we can use the formula I1R1 = I2R2, where I1 and R1 are the initial current and resistance, and I2 and R2 are the final current and resistance. Plugging in the values given, we get:

1.2 A x 200 ohms = I2 x 90 ohms

Simplifying, we get:

I2 = (1.2 A x 200 ohms) / 90 ohms

I2 = 2.67 A

Therefore, the current when the resistance is 90 ohms is 2.7 amperes (rounded to one decimal place), with units of amperes.

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An equation of the line in slope-intercept form include the following: y = 3x - 11.

In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation (formula):

y - y₁ = m(x - x₁)

Where:

At data point (1, -8) and a slope of 3, a linear equation for this line can be calculated by using the point-slope form as follows:

y - y₁ = m(x - x₁)

y - (-8) = 3(x - (1))  

y + 8 = 3(x - 1)

y = 3x - 3 - 8

y = 3x - 11

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