Quadrilateral ABCD is rotated 90° clockwise to produce A'B'C'D' Is each statement true?
AB=A'B'
If AC BD, then A'C' B'D'.
m2ABC Yes No
000

PLEASE HELPP

Quadrilateral ABCD Is Rotated 90 Clockwise To Produce A'B'C'D' Is Each Statement True?AB=A'B'If AC BD,

Answers

Answer 1

Rotation of a shape is a type of transformation. The required answers are:

1. AB=A'B'  (YES)

2.  AC II BD, then A'C' II B'D'    (YES)

3. m<ABC < m<A'B'C'   (NO)

A quadrilateral is a family of shapes which have four sides. Examples are square, rectangle, rhombus etc.

Transformation is a process which can be used to change the orientation or dimensions of a given figure or shape called an object. Some types of transformation are: rotation, translation, reflection, and dilation.

Rotation implies turning an object at a certain angle in a specific direction. The direction could be either clockwise or counterclockwise.

NB: Rotating an object changes only its orientation, but not the length of its dimensions or angles.

So that the required answers to the questions are:

1. AB=A'B'  (YES)

2.  AC II BD, then A'C' II B'D'    (YES)

3. m<ABC < m<A'B'C'   (NO)

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Related Questions

you recently joined a computer club that now has 14 members. the club has four different leadership positions (president, vice president, treasurer and secretary). if any club member can serve in any of the leadership positions but no one can serve in two positions simultaneously, how many different ways can the club leadership be organized?

Answers

There are 14 members in the club, and there are 4 leadership positions. Each position can be filled by any of the 14 members, so there are 14 ways to fill the first position, 14 ways to fill the second position, and so on. However, we have overcounted because we have not taken into account that a member cannot serve in two positions simultaneously. To correct for this overcounting, we divide by the number of ways that a member can serve in two positions simultaneously, which is 1. Therefore, the total number of ways that the club leadership can be organized is:

14 * 14 * 14 * 14 / 1 = 14^4 = 20736 ways.

can someone help me pls?

Answers

The value of x that will make the equation of the model true is: x = 5.8.

How to Solve an Equation of a Model?

Create an equation using the model given, then isolate the variable in order to determine its value, which will make the equation true.

Given the model above, the following equation would be created below:

x + x + 9.4 = 21

Combine like terms

2x + 9.4 = 21

Subtract 9.4 from both sides

2x + 94 - 9.4 = 21 - 9.4 [subtraction property of equality]

2x = 11.6

Divide both sides by 2:

2x/2 = 11.6/2 [division property of equality]

x = 5.8

The value of x is: 5.8.

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The sum of 5 and y is greater than or equal to -19

Answers

When the sum of 5 and y is greater than or equal to -19, the inequality is y ≥ - 24.

How to illustrate the inequality?

Inequalities are created through the connection of two expressions. It should be noted that the expressions in an inequality aren't always equal. Inequalities implies that the expressions are not equal. They are denoted by the symbols ≥ < > ≤.

Since the sum of 5 and y is greater than or equal to -19, this will be:

5 + y ≥ - 19

y ≥-19 - 5.

y ≥ - 24

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Complete question

The sum of 5 and y is greater than or equal to -19. Express the inequality.

Need to explain a bit on why the answer is 11.95. Show work

Answers

Explanation:

Use the trigonometric ratio cosine.

Remember that [tex]\cos(x) = \dfrac{\textrm{adjacent}}{\textrm{hypotenuse}}[/tex].

So, we can construct the following equation using the given triangle:

[tex]\cos(23\textdegree)=\dfrac{11}{x}[/tex]

And solve for x. First, take the reciprocal of both sides (flip both sides).

[tex]\dfrac{\cos(23\textdegree)}{1}=\dfrac{11}{x}[/tex]

        ↓

[tex]\dfrac{1}{\cos(23\textdegree)}=\dfrac{x}{11}[/tex]

Then, multiply both sides by 11.

[tex]11\cdot\left(\dfrac{1}{\cos(23\textdegree)}\right)=\left(\dfrac{x}{11}\right) \cdot 11[/tex]

[tex]\dfrac{11}{\cos(23 \textdegree)} = x[/tex]

[tex]x = \dfrac{11}{\cos(23 \textdegree)}[/tex]

Finally, plug this fraction into your calculator as 11/cos(23) to get approximately 11.95.

Also, make sure that your calculator's mode is degrees, NOT radians.

Select the correct answer from each drop-down menu. A transversal t intersects two parallel lines a and b, forms two groups of angles. On top line a, starting from the top left, clockwise, angles are 1, 2, 3, and 4. On below line b, starting from the top left, clockwise, angles are 5, 6, 7, and 8. In the figure, a ∥ b , and both lines are intersected by transversal t. Complete the statements to prove that m∠1 = m∠5. a ∥ b (given) m∠1 + m∠3 = 180° (Linear Pair Theorem) m∠5 + m∠6 = 180° (Linear Pair Theorem) m∠1 + m∠3 = ∠5 + ∠6 () m∠3 = m∠6 () m∠1 = m∠5 (Subtraction Property of Equality)

Answers

The congruent angles of the statements are;

∠1 + ∠3 = 180° by Vertical angles theorem.

∠5 + ∠6 = 180° by Linear pair theorem.

∠1 + ∠3 = ∠5 + ∠6 by both are supplementary angles.

∠3 = ∠6 by consecutive interior angles

∠1 = ∠5 by corresponding angles.

How to find corresponding angles?

We want to prove that ∠1 = ∠5.

Corresponding angles; When two parallel lines are intersected by another line, corresponding angles are the angles that are created in matching corners or corresponding corners with the transversal.

From the given question, we see that;

∠1 + ∠3 = 180°: This is because ∠1 and ∠3 are vertical angles by the vertical angles theorem.

∠5 + ∠6 = 180°: This is because ∠5 and ∠6 are linear pairs by the Linear pair theorem.

∠1 + ∠3 = ∠5 + ∠6 ; 180° = 180° ; Both are supplementary angles.

∠3 = ∠6 ; Consecutive interior angles

Now, ∠1 = ∠5, Corresponding angles.

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The length and width of a rectangle are consecutive integers. The area of the rectangle is 380 square meters. Find the length and width of the rectangle.​

Answers

Answer:

19x20

Step-by-step explanation:

The area of a rectangle is given by the formula A = l * w, where l is the length and w is the width of the rectangle. In this case, we are given that the area of the rectangle is 380 square meters and that the length and width of the rectangle are consecutive integers.

We can use this information to create a system of equations to solve for the length and width of the rectangle. Let l be the length of the rectangle and w be the width of the rectangle. Since the length and width of the rectangle are consecutive integers, we have:

l = w + 1

Substituting this equation into the formula for the area of the rectangle, we get:

A = l * w

= (w + 1) * w

= w² + w

Since the area of the rectangle is given as 380 square meters, we can set this equation equal to 380 and solve for w:

w² + w = 380

To solve for w, we can use the quadratic formula, which is given by:

x = (-b ± √(b² - 4ac)) / (2a)

where a, b, and c are the coefficients of the quadratic equation, and x is the solution. Substituting the values of a, b, and c into the formula and simplifying, we get:

w = (-1 ± √(1² - 4(1)(380))) / (2(1))

= (-1 ± √(-1519)) / 2

Since the length and width of the rectangle must be positive integers, we can ignore the negative solution and only consider the positive solution. Therefore, the width of the rectangle is 19.

To find the length of the rectangle, we can use the equation l = w + 1 that we derived earlier. Substituting the value of w into this equation, we get:

l = w + 1

= 19 + 1

= 20

Therefore, the length of the rectangle is 20 and the width of the rectangle is 19. The dimensions of the rectangle are 20 x 19.

a quadrilateral whose diagonals do not always bisect each other is a. an isosceles trapezoid b. a rectangle c. a square d. a rhombus

Answers

A quadrilateral whose diagonals do not always bisect each other is a rectangle.

A rectangle is a quadrilateral with four right angles. The diagonals of a rectangle are perpendicular to each other and bisect each other, but not all quadrilaterals with perpendicular diagonals and diagonals that bisect each other are rectangles. For example, a square is a type of quadrilateral with perpendicular diagonals and diagonals that bisect each other, but it has four congruent sides and four right angles, unlike a rectangle.

The word "rectangle" comes from the Latin words "rectus," meaning "right," and "angulus," meaning "angle." This reflects the fact that a rectangle has four right angles.

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Rectangular coordinates and polar coordinates both represent the same complex number z. Which set of equations demonstrates why both sets of coordinates represent the same number?.

Answers

The correct option C: r = √(√3)² + (√3)² = √6; θ  = arctan (1) = π/4.

The complex number z=x+iy is represented by the rectangular coordinates (√3,√3) and polar coordinates (6,π/4) respectively.

A polar coordinate is what?

The polar coordinates r (a radial coordinate) and in Cartesian space (the angular coordinate, generally termed as  polar angle),

x = rcosθ  .....(1)

y = rsinθ,  .....(2)

where is indeed the counterclockwise angle first from x-axis and r is the radial distance to the origin. Considering x and y,

r² = x² + y²  ...eq 3

θ  = arc tan (y/x)

Using the polar coordinates explanation from above, we can deduce that;

r² = x² + y²  .

r² = √3² + √3²  .

r = √(√3)² + (√3)²

and

θ  = arc tan (√3/√3) = arctan (1) = π/4.

Thus, the complex number z=x+iy is represented by the rectangular coordinates (√3,√3) and polar coordinates (6,π/4) respectively.

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The compete question is attached.

2. In the March 1998 issue of Great Goatee Magazine, readers could vote online for their
favorite goatee in the Pitt-Brust Bonanza. Readers could either vote for Brad Pitt or Mr. Brust. Brust's
votes equaled 2 times the sum of Pitt's votes and 400. The total number of votes received was 2012.
Model the situation with a linear system.
a.
Pitt?
Total # of votes:
Brust vs Pitt:
Let B # vote for Brust
Let P=#votes for Pitt
= 2(.
= 2012
LON BY SHged Fa
Brust?

Answers

Brust's votes equaled 2 times the sum of Pitt's votes and 400:

B = 2(P + 400), this is the first equation

The total number of votes received was 2012:

B + P = 2012, this is the second equation

Solve for P by substitution:

2(P + 400) + P = 20122P + 800 + P = 20122P = 2012 - 8002P = 1212P = 606

Find B:

B =2012 - 606B = 1406

Answer:

a)   Total # of votes:   B + P = 2012

     Brust vs Pitt:   B = 2(P + 400)

b)   1608 = votes for Brust

      404 = votes for Pitt

      Brust won by 1204 votes

Step-by-step explanation:

Given variables:

Let B = the number of votes for BrustLet P = the number of votes for Pitt

Given information:

Brust's votes equalled 2 times the sum of Pitt's votes and 400.The total number of votes received was 2012.

Create a system of linear equations using the given variable and information:

Total # of votes:   B + P = 2012Brust vs Pitt:   B = 2(P + 400)

Substitute the second equation into the first equation and solve for P:

⇒ 2(P + 400) + P = 2012

⇒ 2P + 800 = 2012

⇒ 3P = 1212

⇒ P = 404

Substitute the found value of P into the first equation and solve for B:

⇒ B + 404 = 2012

⇒ B = 1608

Therefore:

1608 = votes for Brust404 = votes for Pitt

To find how many votes Brust won by, subtract the total number of votes for Pitt from the total votes for Brust:

⇒ 1608 - 404 = 1204

a theatre has 36 rows with 26 seats in the first row, 30 in the second row, 34 in the third row, and so forth. how many seats in the theatre.

Answers

The Answer is 38 seats for the 30th row! Because...

It is Adding up by 4 seats:)

Glad to help....

Mark me brainlyest ty!

The first term of a geometric sequence is 5 and the sixth term is 160.
What is the common ratio?

Answers

Answer:

The common ratio is 2.

Select the correct answer from each drop-down menu. triangle abc is represented. points d and f are marked on side ab and points e and g are marked on side ac. segments de and fg are drawn. if , then line segment is parallel to line segment .

Answers

If points d and f are on side ab and points e and g are on side ac then line segments de and fg are parallel

What are parallel lines?

Parallel lines are those lines that do not meet at any point. If we draw a triangle ABC and plot points d and f are marked on side ab and points e and g are marked on side ac then the line segment fg is parallel to de because both the line segments are drawn from the points which are on the sides opposite to each other. We have assumed a simple triangle because no description is given for the triangle

Hence the line segment fg is parallel to de if drawn points d and f marked on ab and points e and g are marked on ac.

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as it reaches the point (1, 5), the y-coordinate is increasing at a rate of 4 cm/s. how fast is the x-coordinate of the point changing at that instant?

Answers

The rate of increase of the y-coordinate as it approaches the point (1, 5) is 4 cm/s.At that instant, the x-coordinate of the point is not changing; it is staying at 1.

When a point reaches a certain coordinate, it means that the point is not changing anymore. In this case, the point has reached the coordinate (1, 5), which means that the x-coordinate (1) is not changing, while the y-coordinate (5) is increasing at a rate of 4 cm/s. Therefore, the x-coordinate of the point is not changing at that instant.

x = 1

Rate of Change (x-coordinate) = 0 cm/s

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Help me respond this question.

Answers

The percentile rank of score 71 on the test is 26.7 and The score of the 60th percentile on the test is 84.

What is a percentile?

The figure that a particular percentage falls within is referred to as the percentile. For instance, 80% of the kids in a group of 20 are shorter than you, and Ben is the fourth tallest.

Given:

58, 64, 66, 70, 71, 75, 77, 80, 84, 85, 87, 90, 93, 95, 96

Calculate the percentile of score 71 as shown below,

[tex]Percentile= n / N \times 100[/tex]

Here, n is the number of scores below 71 and N is the total number of scores,

Percentile = 4 / 15 × 100

Percentile = 0.267 × 100

Percentile = 26.7 percentile

Therefore, the percentile rank of score 71 on the test is 26.7

(B)

Substitute the value in the formula given below,

60 = n / 15 × 100

n / 15 = 60 / 100

n = 0.6 ×  15

n = 9

Thus, the 9th term here is 84,

Therefore, the score of the 60th percentile on the test is 84.

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Solve for x :-

[tex]\boxed{\underline{\tt x+5=7}}[/tex]


Show your work, thanks! ;-;

Answers

The value of x in the equation x + 5 = 7 is 2

How to calculate the equation?

An equation is the statement that illustrates the variables given. In this case, two or more components are taken into consideration to describe the scenario. It is vital to note that an equation is a mathematical statement which is made up of two expressions that are connected by an equal sign.

In this case, the equation is:

x + 5 = 7

Collect the like terms

x = 7 - 5

x = 2

Therefore, x is 2.

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Answer:

x = 2

Step-by-step explanation:

Given equation,

→ x + 5 = 7

Now the value of x will be,

→ x + 5 = 7

→ x + 5 - 5 = 7 - 5

→ [ x = 2 ]

Hence, the value of x is 2.

What are complementary and supplementary angles? How do you find the measure of an unknown angle using these relationships? Give an example and show your work.

Answers

Two angles are called complementary when their measures add up to 90 degrees. Two angles are called supplementary when their measures add up to 180 degrees.

Complementary angles add up to 90°- example: 15° & 75° are complimentary

For example:

Suppose if one angle is x then the other angle will be 90° – x.

Now, to find the complement of 2x + 52°, subtract the given angle from 90 degrees.

90o –  (2x + 52o) =  90o – 2x – 52o  = -2x + 38o

The complement of 2x + 52o is 38o – 2x.

Supplementary angles add up to 180°- example: 50° & 130° are supplementary

if the two angles form a linear angle, such that, if one angle is x, then the other angle is 180° – x

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Which is bigger a yard or feet

Answers

Answer:

A Yard

Step-by-step explanation:

Yards are 36 inches and feet are 12

Please help! It’s asap :(

Answers

Answer:

mean is the average of all the values:

( 15.07 + 15.47 + 15.93 + 15.86 + 15.07 ) / 5 = 15.48g

median is the middle value AFTER it has been arranged in increasing order:

the increasing order is: 15.07, 15.07, 15.47, 15.86, 15.93

the middle value is 15.47g making it the median.

the mode is the most repeated value: 15.07g

a delivery truch travels 21 blocks north , 16 blockd east, and 26 blocks south. what is its displacment form the oriringo

Answers

Displacement from the origin will be 16.76 block

Pythagoras Theorem:

                                   Pythagoras theorem can be used to find the unknown side of a right-angled triangle.Theorem stats that,

                c² = a² + b²

                         where 'c' is the hypotenuse and 'a' and 'b' are the two legs.

In figure,

              O is origin,

             First travel 21 block north that means OA = 21 block.

             then,

                         travel 16 block East that means AB = 16 block.

             again finally,

                        travel 26 block South that means BC = 26 block.

Join OC,

            OC = 16 block

            CD = 5 block

we have to find the value of OD

Apply Pythagoras theorem,

                                                OD² = OC² + CD²

                                       

                                                OD = √(OC² + CD²)

                                                OD =√(16² + 5²)

                                                OD =√(256 + 25)

                                                 OD = √(256 + 25)

                                                 OD = √281 block

                                                 OD = 16.76 block

Thus,

              Displacement from the origin will be 16.76 block

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Help me in question four! Please

Answers

The solution of the z-score of the standard deviation is [tex]0.5[/tex].

What is the standard deviation?

The standard deviation is a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean of the set, while a high standard deviation indicates that the values are spread out over a wider range.

Here given that,

The weight for twelve month old baby boys are normally distributed wih the mean [tex]22.5[/tex] pounds and a standard deviation of [tex]2.2[/tex] pounds.

Here, [tex]mean=22.5[/tex] , standard deviation [tex]=2.2[/tex]

z-score = (Blood pressure reading - mean)/standard deviation

[tex]=\frac{23.6=22.5}{2.2}\\\\=\frac{1.1}{2.2}\\\\=0.5[/tex]

Hence, the percentage is [tex]0.5[/tex].

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kristyn and her sister enjoyed a special dinner in a restaurant, and the bill was $ 46.25 . if she wants to leave 23 % of the total bill as her tip, how much should she leave?

Answers

$10.6375 she tip if she wants to give a 23% tip of the whole bill when  tab for the nice supper that Kristyn and her sister had was $ 46.25.

Given that,

The tab for the nice supper that Kristyn and her sister had was $ 46.25.

We have to find how much should she tip if she wants to give a 23% tip of the whole bill.

We know that,

The tab for the nice supper that Kristyn and her sister had was $ 46.25.

So,

23% tip of the whole bill is

=$ 46.25×23%

=10.6375

Therefore, $10.6375 she tip if she wants to give a 23% tip of the whole bill when  tab for the nice supper that Kristyn and her sister had was $ 46.25.

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Select the correct answer from each drop-down menu.
Which system of inequalities does the graph represent? Which test point satisfies both of the inequalities in that system?

A coordinate plane linear graph on inequalities.

Answers

The system of inequalities that is represented by the graph is given as follows:

y ≤ -x + 1.y ≥ -0.75x + 0.5.

How to define the system of linear inequalities?

The system of linear inequalities is defined with linear functions, which have the slope-intercept format given as follows:

y = mx + b.

In which the parameters are given as follows:

m is the slope, representing the change in y when x is increased by one.b is the y-intercept, representing the value of y when the graph of the function crosses the y-axis.

For the upper bound of the inequality, we have that the linear function:

Has a slope of -1, as when x increases by one, y decreases by one.Has an intercept of 1, as when x = 0, y = 1.

Then the upper bound of the inequality has the definition given by:

y ≤ -x + 1.

For the lower bound of the inequality, we have that the linear function:

Has a slope of -0.75, as when x increases by four, y decreases by three.Has an intercept of 0.5, as when x = 0, y = 0.5.

Hence the lower bound of the inequality has the definition given by:

y ≥ -0.75x + 0.5.

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Luanne' car ha a range of 675 mile on one tank of ga. Her car average 45 mile per gallon and ha already ued 2 gallon of ga. How many gallon of ga, g, are left in the tank?

Answers

Based on the storage capacity, Lunanne's car has 13 gallons of gas left in the tank.

Storage capacity of car = distance covered in total ÷ distance covered in one gallon

Keep the values in formula to find the storage capacity of car

Storage capacity of car = 675 ÷ 45

Performing division on Right Hand Side of the equation

Storage capacity of car = 15 gallons

Amount of gas left in tank = 15 - 2

Performing subtraction on Right Hand Side of the equation

Amount of gas left in tank = 13 gallons

Hence, 13 gallons of gas is left.

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Select the correct values. if the area (in square units) of the region under the curve of the function f(x) = 3x − 1 on the interval [a, 4], where a < 4, is 12 square units, identify all the possible values of a.

Answers

Answer:

-2, 8/3

Step-by-step explanation:

You can consider the area to be that of a trapezoid with parallel bases f(a) and f(4), and width (4-a). The area of that trapezoid is ...

 A = (1/2)(f(a) +f(4))(4 -a)

 = (1/2)((3a -1) +(3·4 -1))(4 -a)

 = (1/2)(3a +10)(4 -a)

We want this area to be 12, so we can substitute that value for A and solve for "a".

 12 = (1/2)(3a +10)(4 -a)

24 = (3a +10)(4 -a) = -3a² +2a +40

 3a² -2a -16 = 0 . . . . . . subtract the right side

 (3a -8)(a +2) = 0 . . . . . factor

Values of "a" that make these factors zero are ...

 a = 8/3, a = -2

The values of "a" that make the area under the curve equal to 12 are -2 and 8/3.

Alternate solution

The attachment shows a solution using the numerical integration function of a graphing calculator. The area under the curve of function f(x) on the interval [a, 4] is the integral of f(x) on that interval. Perhaps confusingly, we have called that area f(a). As we have seen above, the area is a quadratic function of "a". I find it convenient to use a calculator's functions to solve problems like this where possible.

Can someone help me with Question 1, a-b of this assignment? I'd deeply appreciate it! :) I am trying to figure these questions out, and I need help.

Answers

Answer:

Step-by-step explanation:

i think i answered another question by you but ill help anyways

ok so you are trying to check the fact that x=2 for both equations

for A. by using substitution

and B. by properties of Equality

A is easy you just substitute 2 into the x values in the given equations

it will look like

-3x+14=18-5x

-3(2)+14=18-5(2)

-6+14=18-10

8=8

and

2x=5-1/2x

2(2)=5-1(2)/2

4=5-2/2

4=5-1

4=4

so now we have proved that both x are eual to 2 by using substitution

i already answered b on a different question

(6x-18) (3x+2) = 0 solved?

Answers

Answer:

x = 3 and -2/3

Step-by-step explanation:

(6x - 18) (3x + 2) = 0

6x - 18 = 0

6x = 18

x = 3

3x + 2 = 0

3x = -2

x = -2/3

To solve the equation (6x-18) (3x+2) = 0, we can use the zero product property, which states that if the product of two numbers is zero, then at least one of the numbers must be zero. In this case, the left-hand side of the equation is the product of two numbers, (6x-18) and (3x+2), which is equal to zero. Therefore, by the zero product property, at least one of these numbers must be zero.

To find the values of x that make (6x-18) or (3x+2) equal to zero, we can set each of these expressions equal to zero and solve for x. Setting (6x-18) equal to zero, we get 6x-18 = 0, which can be rewritten as 6x = 18. Dividing both sides of the equation by 6, we get x = 3.

Similarly, setting (3x+2) equal to zero, we get 3x+2 = 0, which can be rewritten as 3x = -2. Dividing both sides of the equation by 3, we get x = -2/3.

Therefore, the values of x that make (6x-18) or (3x+2) equal to zero are x = 3 and x = -2/3. These are the solutions to the equation (6x-18) (3x+2) = 0.

Overall, the equation (6x-18) (3x+2) = 0 has two solutions: x = 3 and x = -2/3.

La altura de un prisma de base cuadrada es de 15 cm. Si el lado de la base cambia de 10 a 10.02 cm, utilizando diferenciales, calcular el cambio aproximado de su volumen sabiendo que V (x) = 15x2

Answers

Según el método de diferenciales, el cambio aproximado del volumen del prisma es aproximadamente igual a 60 centímetros cúbicos.

¿Cómo determinar el cambio del volumen mediante diferenciales?

Las diferenciales son una generalización del concepto matemático de cambio para funciones de una o más variables. Las versiones de una sola variable involucran derivadas ordinarias, mientras las versiones multivariables utilizan derivadas parciales.

El volumen del prisma es igual al producto del área de la base (A), en centímetros cuadrados, y la altura (h), en centímetros.

V(h, A) = h · A

El área de la base es igual al área de un cuadrado, es decir:

A(x) = x²

Donde x es la longitud del lado, en centímetros.

Según el enunciado, la altura del prisma es constante, mientras la longitud del lado de la base es una variable. En consecuencia, tenemos un diferencial que emplea derivadas ordinarias, esto es:

ΔV = (dV / dx) · Δx

V(x) = 15 · x²

dV / dx = 30 · x

Si sabemos que x = 10 cm y Δx = 0.02 cm, entonces el cambio en el volumen del prisma es:

ΔV = 30 · (10 cm)² · (0.02 cm)

ΔV = 60 cm³

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consider the words consisting of 5 letter "a"'s, 7 letter "b"'s, and 1 letter "c". find the number of such words where there are no two consecutive "b"'s.

Answers

Answer:

To avoid consecutive b's, the string of b's must be divided into one or more groups of 1, 2, or 3 b's. There are a total of 5 + 1 = 6 possible places to insert the dividers to create these groups. For example, suppose we have a string of 7 b's and we insert dividers between the 3rd and 4th b's, and between the 5th and 6th b's. This would create the following groups of b's: bb|bb|b. In general, the number of possible ways to divide the string of b's into groups of 1, 2, or 3 b's is equal to the number of ways to insert 6 dividers into a string of 7 b's. This is equal to the number of ways to choose 6 of the 8 possible places to insert the dividers, which is equal to $\binom{8}{6} = 28$.

Since the 5 a's and the 1 c must be arranged in a specific order, there is only 1 way to arrange these letters. Therefore, the total number of words consisting of 5 letter a's, 7 letter b's, and 1 letter c is equal to $1 \times 28 = 28$.

Answer:

6 possible words.

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According to the question there are 7 'b' s  and we can't have them together. We assume more than two consecutive 'b' s contain two consecutive 'b' s and hence not considering any option of having 3, 4, 6 or 7 'b' s.

There is only one way to place 'b' s apart which leaves us with 6 gaps.

There are 5 + 1 = 6 other letters which is just the number to fill in the gaps between 7 'b' s.

We have only an option for 'c' to have any of the 6 gaps, it gives us 6 options and no other options for 'a' s.

Therefore in total we have 6 possible ways.

Use algebraic of equations to predict the solution type to the system of equations. Include all of your work for full credit. \(f(x) = \left\{ x+y=-4 y=2x-1\right.\)

Answers

The solution to the given simultaneous equations are;

x = 5/3 and y = 7/3

How to solve simultaneous equations?

We are given the two simultaneous equations as;

x + y = 4  

y = 2x -1

Rearranging the second equation to have all the variables on one side gives; 2x - y = 1

Thus, we have the equations;

x + y = 4   ------(1)

2x - y = 1    -----(2)

Add eq 1 to eq 2 to get;

3x = 5

divide both sides by 3 using division property of equality to get;

x = 5/3

Put 5/3 for x in eq 1 to get;

⁵/₃ + y = 4

y = 4 - ⁵/₃

y = ⁷/₃

Thus, those are the solutions to the simultaneous equations.

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Express the given in terms of the logarithms of prime numbers:

Answers

The expression of log₄405 in terms of the logarithms of prime numbers is; 4 log₄3 + log₄ 5

How to use laws of logarithm?

One of the laws of logarithm is that;

log (a * b) = log a + log b

Now, we are given the logarithmic expression as; log₄405

We can express 405 in terms of prime numbers as;

405 = 81 * 5 = 3⁴ × 5

Thus, we have;

log₄405 =  log₄(3⁴ × 5)

Since log (a * b) = log a + log b, then;

log₄(3⁴ × 5) =  log₄3⁴ +  log₄ 5

= 4 log₄3 + log₄ 5

3 and 5 are prime numbers because they are divisible by only themselves or 1.

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