Find the reciprocal of the following rational number​

The possible values of x according to the give. equation are; 0, ±√3i, ±2i, i, -1.

The possible values of x in the equation given in the task content represent the zeroes of the equation and can be determined as follows;

(x²+3) (x³+4x) (x²+x-i-xi) = 0.

Hence, by further factorisation; we have;

x(x²+3) (x²+4) (x-i) (x+1) = 0.

The possible values of x are therefore;

x = 0;

x²+3 = 0; x = ±√3i

x² +4 = 0; x = ±2i

x -i = 0; x = i.

x +1 = 0; x = -1

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Answer:

C

Step-by-step explanation:

The actions which is taken to ensure "data-integrity" is maintained during  "simultaneous-transactions" are called concurrency control  actions, option (c) is correct.

The "Concurrency-Control" refers to techniques and mechanisms which is used to manage and coordinate concurrent access to shared resources, such as databases, to prevent conflicts and maintain data consistency.

It involves managing the execution of multiple transactions in a way that ensures data integrity, avoids conflicts, and preserves the correctness of the overall system.

The "Concurrency-Control" actions can include locking mechanisms, isolation levels, transaction scheduling, and conflict resolution strategies. These actions are crucial in maintaining data integrity and ensuring that multiple transactions can safely execute concurrently without interfering with each other.

Therefore, the correct option is (c).

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The given question is incomplete, the complete question is

The actions that must be taken to ensure data integrity is maintained during multiple simultaneous transactions are called ________ actions.

(a) logging

(b) multiple management

(c) concurrency control

(d) transaction authorization.

Answer:

1

Step-by-step explanation:

-25x = - 25

X = - 25/-25 = 1

I HOPE IT WILL HELP YOU.

Thank you.

Sry if it is wrong.

Answer:

srgsghsgsg

Step-by-step explanation:

The cup of water reaches a temperature of 173 F after 4.5  minutes.

Temperature is a measure of the average kinetic energy of particles in a system. It is an important physical quantity used to describe the state of a system and is widely used in science, engineering, and everyday life. Temperature is a thermodynamic property of a system that shows how much energy is available to do work. In everyday terms, temperature is a measure of how hot or cold something is.

k = -0.2416

The equation for the cooling rate of the cup of water is:

T(t) = 203- 0.2416t

After 4.5 minutes, the temperature of the cup of water can be found by substituting t = 4.5 into the equation:

T(5) = 203- 0.2416(4.5 ) = 173.08 F

Therefore, the cup of water reaches a temperature of 173 F after 4.5 minutes.

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The equation y = - 2x + 4 matches the line

How to find the equation?

The line passes through two points .

\((x_1, y_1) = (2, 0)\\\\(x_2, y_2) = (0, 4)\)

We know that slope (m) is given by,

\(m =\frac{y_2 -y_1}{x_2 -x_1} \\\\m =\frac{4-0}{0-2} \\\\m= -\frac{4}{2} \\\\m= -2\)

We know the slope- intercept form of an equation is:

y = mx+ c    ----(1)

Let us substitute the point  \((x_1, y_1)\)  and m in (1)

y = mx+ c

0 = -2(2) +c

c = 4

Let us substitute c and m in (1)

The slope- intercept form of the equation is:

y = -2x + 4

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The statement is true.

When the block is in equilibrium, each spring is stretched an additional ∆x. This implies that the forces from the two springs are balanced, and the block is not experiencing any net force in the equilibrium position.

When the block is set into oscillation with amplitude a, it will pass through its equilibrium point during the oscillation. At the equilibrium point, the displacement of the block is zero, and it changes direction. At this point, the block has its maximum speed v, as it is accelerating towards the equilibrium position.

The speed of the block decreases as it moves away from the equilibrium position, reaches zero at the maximum displacement (amplitude), and then starts accelerating towards the equilibrium point again. Therefore, when the block passes through its equilibrium point, it has its maximum speed v.

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The radius of the cylinder is 3 cm and the surface area of the cylinder is 282.6 sq cm

The value of the cylinder diameter from the question is

Diameter = 6 cm

Calculating the radius, we get

So, we have

r = 6 cm/2

Evaluate

r = 3 cm

The formula of the surface area of the cylinder is represented as

SA = 2πr(r + h)

By substitution, we have

SA = 2π * 3 * (3 + 12)

Evaluate

SA = 282.6

Hence, the surface area is 282.6

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Answer:

Option D: 160 square feet

Step-by-step explanation:

Area of the lawn

= (7 feet × 8 feet) + (13 feet × 8 feet)

= 56 square feet + 104 square feet

= 160 square feet

Answer:

8x

2

+6x−6

this is the correct answer

the answer is B

(3x²+2x-5)-(5x²-4x+1)

= 3x²+2x-5-5x²+4x-1

= 3x²-5x²+2x+4x-5-1

= -2x²+6x-6

Each cube in the pattern has an area of 3 square inches.

To determine the area of each cube in the pattern, we need to find the area of each rhombus formed by the pattern.

The pattern consists of rhombuses, and we know that the diagonals of each rhombus are 2 inches and 3 inches.

The formula to find the area of a rhombus is given by:

Area = (d1 * d2) / 2,

where d1 and d2 are the lengths of the diagonals.

In this case, d1 = 2 inches and d2 = 3 inches.

Plugging the values into the formula, we get:

Area = (2 * 3) / 2

= 6 / 2

= 3 square inches.

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The surface area of the cylinder is approximately 401.92 square centimeters. To find the surface area of the cylinder, we need to add the area of the top and bottom circles to the area of the lateral surface.

The formula for the surface area of a cylinder is:

SA = 2πr² + 2πrh

where r is the radius of the base, h is the height of the cylinder, and π ≈ 3.14.

Given that the radius is 8 cm and the height is also 8 cm, we can plug in the values in the formula:

SA = 2π(8²) + 2π(8)(8)

SA = 401.92

Rounding to the nearest hundredth, we get:

SA ≈ 401.92 square centimeters

Therefore, the surface area of the cylinder is approximately 401.92 square centimeters.

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Answer:

Step-by-step explanation:

Answer:

x=5.12

Step-by-step explanation:

35.16= 4.44+6x

30.72=6x

5.12=x

x=5.12

Hope this helps :)

For a sample size of 100 and a standard deviation of 10, we want to test the hypothesis H0: μ = 100. The sample mean is 103. The test statistic is 3. Thus, option c is correct.

The sample size of n = 100

σ = 10

μ = 100

The sample mean = 103

We need to calculate the Z-score in order to determine the test statistic.

z = (x - μ) / (σ / sqrt(n))

z = (103 - 100) / (10 / sqrt(100))

z = 3

Here we need to use a two-tailed test with a significance level of 0.05.

The critical z-value for a two-tailed test = 1.96.

The null hypothesis is rejected because the calculated z-score of 3 is greater than the critical z-value of 1.96.

Therefore, we can conclude that the test statistic is 3.

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Answer:

\(\boxed{\sf \ \ -15 \ \ }\)

Step-by-step explanation:

Hello

\(9\cdot\dfrac{12}{7}\cdot \dfrac{-35}{36}=-\dfrac{3*3*2*2*3*7*5}{7*3*2*3*2}=-15\)

as 9=3*3

12=4*3=2*2*3

35=7*5

36*6*6=2*3*2*3

hope this helps

the sample standard deviation (s) is 4.

To compute the sample standard deviation (s) using the given information, we can use the formula for the z-score transformation:

Z = (X - M) / s

Rearranging the formula, we can solve for the sample standard deviation (s):

s = (X - M) / Z

Substituting the given values, we have:

X = 88

M = 80

Z = 2.00

s = (88 - 80) / 2.00

s = 8 / 2.00

s = 4

what is standard deviation?

Standard deviation is a measure of the dispersion or spread of a set of values in a dataset. It quantifies how much the individual data points deviate from the mean or average of the dataset.

Mathematically, the standard deviation (represented by the symbol σ for the population and s for a sample) is calculated by taking the square root of the variance. The variance is the average of the squared differences between each data point and the mean.

The formula for calculating the standard deviation of a sample is:

s = √(Σ(xᵢ - x(bar))² / (n - 1))

Where:

- xᵢ represents each individual data point in the sample

-  x(bar) represents the sample mean

- n is the sample size

The standard deviation provides valuable information about the variability and dispersion of the data points. A larger standard deviation indicates a wider spread of values, while a smaller standard deviation indicates that the data points are closer to the mean and less spread out.

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Answer:

see below

Step-by-step explanation:

The absolute value is the distance from zero.

It is the non-negative quantity.

Answer:

Step-by-step explanation:

The fourth image because when looking for liner equations if you draw a line through them and it only touches once its linear equation!

sorry if im wrong...  

Answer:

{t|60 <= t <= 85}

Step-by-step explanation:

The temperatures were measures at different times, but does not stop the values being real numbers (i.e. not discrete, or integer values).

So the range of the function is the set of all values between the minimum and maximum measured during the measuring interval (domain) of hours two and twenty-two.

The minimum value = 60F

The maximum value = 85F

So the interval of the range is [60,85], in interval notation.

In set-builder notation, it is

{t|60 <= t <= 85}

Answer:

Month 5

Step-by-step explanation:

Answer:

7y

Step-by-step explanation:

Mark me brainlist please

Answer: (a)Increasing: (-1,-6) to (0,6) (b)decreasing: (-6,-1) to (-4,-3) (c)constant: (-4,-3) to (-1,-6)

Hope this helps!

Answer:

(a)  (-∞, -6) ∪ (-1, 0)

(b)  (-6, -4)

(c)  (-4, -1) ∪ (0, ∞)

Step-by-step explanation:

A function is increasing when the gradient is positive.

A function is decreasing when the gradient is negative.

A function is constant when the gradient is zero.

An arrow shows that the function continues indefinitely in that direction.

Use the x-values when describing the intervals.

Note:  Use parentheses for the defined endpoints of the intervals as we cannot say if the function is increasing, decreasing or contestant at the defined points on the graph.

Part (a)

Intervals for which the function is increasing:

Part (b)

Interval for which the function is decreasing:

Part (c)

Intervals for which the function is constant:

Answer:

39 is the answer

Step-by-step explanation:

well so in this is it a little tricky so yea let me see got it right

Answer:

the 2nd one

Step-by-step explanation:

hope this helped!

p.s it would be cool if you would give me brainliest

Answer:

I got 142

Step-by-step explanation: