how many 4-letter passwords can be formed using the letters a, b, c, d, e, f, g if repetition of letters is not allowed and the first letter can only be a, b or c?

Answers

Answer 1

840 are  4-letter passwords can be formed using the letters by permutation .

What are some examples of permutation?

A permutation is a set up of things in a specific order. In this arrangement, the components or components of sets are organized in a linear or sequential order. The permutation of the set A=1,6 is 2, for instance, 1,6, and 6,1. The components of set A cannot be arranged in any other way, as you can see.

We are to count all possible 4-letter passwords that can be generated from the letters a, b, c, d, e, f, g .

There are 7 letters in total.

      n = 7 r = 4

 P(n , r ) = 7!/( n - r )!

  P( 7 ,4 ) = 7!/( 7 - 4)!

              = 7!/3!

             = 7 * 6 * 5 * 4 * 3 * 2 * 1/3!

              = 7 * 6 * 5 * 4

               = 840

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Related Questions

A circle has a circumference of 3.143.143, point, 14 units.
What is the diameter of the circle?
Use 3.14 for \piπpi and enter your answer as a decimal.

Answers

The diameter of the circle is 4.45 units.

What is circle?

A circle is a closed two-dimensional figure in which the set of all the points in the plane is equidistant from a given point called “centre”. Every line that passes through the circle forms the line of reflection symmetry. Also, it has rotational symmetry around the centre for every angle.

A line segment having both the endpoints on the circle and is the largest chord of the circle is called diameter.

Given,

the circumference of circle = 14 units

circumference = πd

14 = 3.14(d)

14/3.14 = d

d = 4.45

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Description of End behavior "-x^4-x^3+3x^2+2x+6"

Answers

The end behavior of the function is f(x) → -∞, as x→ -∞ and f(x) → -∞, as x→ +∞.

What is the end behavior of a function?

A polynomial function's final behavior is how its graph behaves as x gets closer to positive or negative infinity.

The graph's final behavior is determined by a polynomial function's degree and leading coefficient.

For extremely big or very tiny values, the leading coefficient is more important than the other function coefficients. Therefore, it is sufficient to forecast the function's final behavior based on the sign of the leading coefficient.

The given function is -x⁴ -x³ +3x² +2x +6

The degree of the given function is even and the leading coefficient is negative. So,

End behavior is given by

f(x) → -∞, as x→ -∞

f(x) → -∞, as x→ +∞

The graph looks as follows:

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which of the following is a polynomial?

Answers

Answer:

Option D

Step-by-step explanation:

This is because it contains the sum of the same variable to different powers.

Find the value of the variables in each figure. Explain your reasoning.

Answers

The value of the variables x and y in each figure are 28 and 46.3 respectively.

What are supplementary angles?

Two angles whose sum is 180° are called supplementary angles. If a straight line is intersected by a line, then there are two angles form on each of the sides of the considered straight line.

Therefore,

5x + 40 = 180,

5x = 180 - 40

5x = 140

x = 28

Also,

(3y-1 ) and 40 are corresponding angles, thus

40 + 3y - 1= 180 ,

3y = 180 - 40 + 1

3y = 139

y = 46.3

Thus, the value of the variables x and y in each figure are 28 and 46.3 respectively.

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Omar compro 3.5k de cebolla a 8.90 el kilo. Cuanto pago por las cebollas

Answers

The amount that Omar will pay when he bought 3.5k of onions are 8.90 per kilo is $31.15.

What is money?

From the information given, Omah wants to know the total amount that he will pay for the onions. It's important to know the cost for each kilogram of onion and then multiply it but the number of kilograms that are bought.

In this case, Omar bought 3.5k of onions are 8.90 per kilo.

The amount that Omar will pay for the onions will be:

= Number of kilograms × Cost per kg

= 3.5 × 8.90

= $31.15

In conclusion, the amount is $31.15.

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Can someone help me with this please! I really need it done

increase the amount of the ingredients by 5 and by 20

Answers

Using simple mathematical operations, the missing values are as follows:

(B) Dijon Mustard: 18g

Increased by 20 = 360g

(C) Barbeque sauce: 70g

Increased by 5 = 350gIncreased by 20 = 1,400g

(D) Worcestershire sauce: 10.35g

Increased by 5 = 51.75gIncreased by 20 = 207g

(E) Kosher salt: 1.5g

Increased by 5 = 7.5gIncreased by 20 = 30g

(F) Ground black pepper: 2.3g

Increased by 5 = 11.5gIncreased by 20 = 46g

(G) Crushed red pepper: 1.15g

Increased by 5 = 5.75gIncreased by 20 = 23g

What do we mean by mathematical operations?A mathematical "operation" is the process of calculating a value utilizing operands and a math operator.There are predefined rules associated with the math operator's symbol that must be applied to the supplied operands or numbers.The order of operations is a rule that outlines the proper steps to take when analyzing a mathematical equation.We can recall the PEMDAS steps in the following order: Parentheses, Exponents, Multiplication, Division (from Left to Right), Addition, and Subtraction (from left to right).

So, we can calculate missing values as follows:

(B) Dijon Mustard: 18g

Increased by 20 = 18×20 = 360g

(C) Barbeque sauce: 70g

Increased by 5 = 70×5 = 350gIncreased by 20 = 70×20 = 1,400g

(D) Worcestershire sauce: 10.35g

Increased by 5 = 10.35×5 = 51.75gIncreased by 20 = 10.35×20 = 207g

(E) Kosher salt: 1.5g

Increased by 5 = 1.5×5 = 7.5gIncreased by 20 = 1.5×20 = 30g

(F) Ground black pepper: 2.3g

Increased by 5 = 2.3×5 = 11.5gIncreased by 20 = 2.3×20 = 46g

(G) Crushed red pepper: 1.15g

Increased by 5 = 1.15×5 = 5.75gIncreased by 20 = 1.15×20 = 23g

Therefore, using simple mathematical operations, the missing values are as follows:

(B) Dijon Mustard: 18g

Increased by 20 = 360g

(C) Barbeque sauce: 70g

Increased by 5 = 350gIncreased by 20 = 1,400g

(D) Worcestershire sauce: 10.35g

Increased by 5 = 51.75gIncreased by 20 = 207g

(E) Kosher salt: 1.5g

Increased by 5 = 7.5gIncreased by 20 = 30g

(F) Ground black pepper: 2.3g

Increased by 5 = 11.5gIncreased by 20 = 46g

(G) Crushed red pepper: 1.15g

Increased by 5 = 5.75gIncreased by 20 = 23g

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help meeeeeeeeeeeeeeeeeee pleaseeee rn rnnnnnnnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
help meeeeeeeeeeeeeeeeeee pleaseeee rn rnnnnnnnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

The vertex of the parabola is at (-2, 2), the line of symmetry of the parabola is at x = -2 and the parabola is open downwards

From the given parabola

The vertex of the parabola is at (-2, 2)

The vertex of the parabola is defined as the the point at the intersection of the parabola and its line of symmetry.

The line of symmetry is at x = -2

The parabola is open downwards

Hence, the vertex of the parabola is at (-2, 2), the line of symmetry of the parabola is at x = -2 and the given parabola is open downwards

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Решите пожалуйста приведенные ниже файлы, срочно

Answers

Step-by-step explanation:

the answer is Y=-1/2×+5

Explanation:

You put the gradient in M for Y=M×+C (substitute) then you substitute the coordinates it has given you into the X and Y part of linear equation. (x,y)

-8x-7=33 ''solve it ''

Answers

Answer:

Step-by-step explanation:

-8x-7=33

    +7 +7

-8x=40

x=-5

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Answers

The maximum area is 640,000.

Given fencing yards = 3200

let the length be x and the width be y

The parameter of the rectangle is given as;

2(L + B),that is

2(x + y) = 3200

x + y = 1600

y = 1600-x

let the area of the rectangle be A, then

A = x y

A = x(1600-x)

A = 1600x - x^2

finding the maximum derivative of A with respect of x

da/dx = 1600 - 2x

set da/dx to zero,

1600 - 2x = 0

1600 = 2x

x = 1600/2

x =800

substitute the value of x = 800 in to y

y = 1600 - 800

y = 800

The maximum area is 800 x 800

Therefore Maximum area = 640,000.

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An investor borrows r11500 to buy a computer and is charged interest at an annual rate of 6 %per annum compounded quarterly. the loan has to be paid in 3 years. calculate the amount of loan that is outstanding at the end of 2 years

Answers

The loan amount at the end of 2 years is Rs. 12,127 .

In the given question we have, amount Rs. 11500 is borrowed by investor at the interest rate of 6% per annum.

compund interest is defined as the addition of interest to the principal of loan.

principal (P) = 11500

If interest is compunded quarterly then time(t) = 3 years = 12 , rate ( r%) = 6/4% = 2/3 %

Using the formula of Amount ,

Amount = P( 1 + r / 100) ᵗ

= 11500( 1 + 2/ 300)⁸

= 12127.83 ~ 12128

compound interest = Amount - principal =

12128- 11500 = Rs. 628

So, An investor has to pay total Rs. 12128 at the end of 2- year.

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A cat’s heart beats approximately 45 times in 15 seconds. At this rate how many times does the cat′s heart beat per second?

Answers

Answer:  3 beats per second

Work Shown:

45 beats = 15 seconds

45/15 beats = 15/15 seconds

3 beats = 1 second

To convert to beats per minute (bpm), multiply by 60.

write the inverse: if the 2 smallest sides sum to be larger than the 3rd side, then it is a triangle.

Answers

Using the properties of conditional statements we can write the inverse of the statement as ": if the 2 smallest sides sum is not larger than the 3rd side, then it is not a triangle."

The statement  is given as if the sum of two sides is greater than the third side then it is a triangle.

Now for the inverse we have to convert the given line into double negative.

Hence we get:

If the 2 smallest sides sum is not larger than the 3rd side, then it is not a triangle

Conditional statements are part of mathematical reasoning, a vital skill that enables students to evaluate a given hypothesis without reference to a particular context or meaning. Simply put, when a scientific research or allegation is studied, the logic isn't truly founded on an individual's perspective. Deductions and evidence must have factual and scientific foundations.

the various types of conditional statements are:

When the conditional statement's hypothesis and conclusion are both untrue, it is referred to as an inversion of the statement.If both a hypothesis and a conclusion are false at the same time, the statement is contrapositive.A statement is said to be biconditional when it is both conditional and converse at the same time, satisfying both conditions as true.

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help meeeeeeeeeeeeee pleaseeeeeeeeee!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

the shorter leg = 9mm

the longer leg = 12mm

the hypotenuse is 15mm

Step-by-step explanation:

x^2 +(x+3)^2 =(x+6)^2

x^2 + x^2 + 6x +9=x^2 + 12x +36

x^2-6x-27=0

(x+3)(3-9)=0

x=-3 (impossible) ... or x=9

WILL GIVE BRAINLIST TO BEST ANSWER! EASY POINTS
write the point slope form of the equation of the line through the given points.
through (-5, -1) and (-4, -5)

Answers

Answer:

y+1=-4(x+5)

Step-by-step explanation:

it changed to point slope form so now it’s different

the equation is y-y1=m(X-x1)

y-(-1)=m(x-(-5)

y+1=m(x+5)

Now to find slope y2-y1/x2-x1

-5+1/-4+5

-4/1

-4 is the slope so we just fill it in

y+1=-4(x+5)

Hopes this helps please mark brainliest

Find all rational roots.
x(3x − 4) (x − 5) = 0

Answers

The rational roots of the given equation x(3x − 4) (x − 5) = 0 are x = 0, 4/3 and 5

What is Rational Number?

Numbers that may be expressed in the form p/q, where p and q are integers and q0, are considered rational numbers. Because fractions cannot have a negative numerator or denominator, they differ from rational numbers in this respect. Because of this, the numerator and denominator of a fraction are whole numbers (denominator 0), unlike in the case of rational numbers, when they are both integers.

So to convert a fractional to reduce form we have to divide by 10 to power how many digits thereafter decimal point, and make sure that numerator or denominator doesn't have common divisible.

x(3x − 4) (x − 5) = 0

So we can put every term equal to zero to find it's root.

1st case, x = 0

2nd, 3x-4 = 0

        3x = 4

         x= 4/3

3rd, x-5 = 0

        x = 5

Hence, the rational roots of the given equation are x = 0, 4/3 and 5

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Pls help me and give steps as to how to do it thank you

Answers

Answer: [tex]x=13, y=132[/tex]

Step-by-step explanation:

Using the same-side interior angles theorem, [tex]y=132[/tex].

Using the alternate interior angles theorem, [tex]5x-17=48 \implies x=13[/tex]

HELP!!

Find three consecutive odd integers that twice the sum of the second and the third is 43 more than three times the first

Answers

Answer: 31, 33, 35

Step-by-step explanation:

find the equation of the line in slope-intercept form. e through (−5, 6) with slope = 2

Answers

Answer:

Step-by-step explanation:

Slope-intercept form is y=mx+b where m is your slope and b is your y-intercept.

To find your equation with what you are given, you have to plug in your values.

(-5, 6) = (x, y) so plug -5 in where there is x and 6 in where there is y

then your slope, m, is 2 so plug 2 in where there is m.

so it should look like

6=2(-5)+b, now you are solving for b.

  6    = -10+b

+10      +10

___________

16     =  b           Then take the values and plug back into the slope intercept formula, y=mx+b.

Plug 16 in for b and 2 in for m (m represents slope and they told us the slope =2)

*you no longer need the y and x values because you only use those to solve for m or b, in this case b, so leave y and x in your equations*

y=2x+16

Which capital letters in the word TRANSFORMATION produce the same letter after being rotated 180°?

Answers

The capital letters of the word TRANSFORMATION are rotated 180 degrees, they generate the same letter are I, N, O and S.

Define the term rotation?Geometry can be used to determine the meaning of rotation in mathematics. As a result, it is described as the movement of an object round the center or an axis.The point of rotation is the point where the object is rotated.An angle of rotation is the degree of rotation calculated in degrees.

It is possible to rotate clockwise or counterclockwise. If an item needs to be rotated, there are several methods for doing so:

90 degrees counterclockwise90° counterclockwise180 degrees counterclockwiseanticlockwise 180 degrees

When the capital letters of the word TRANSFORMATION are rotated 180 degrees, they generate the same letter: I, N, O and S.

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Factor completely, than place the factors in the proper location on the grid

Y^2x -y^x-20

Answers

Answer: Cannot be factored

Step-by-step explanation:

= Factor Y^2x -y^x-20

= Cannot be factored

Which congruence postulate could prove TriangleAEM = TriangleDEN

Answers

Triangle AEM is congruent to triangle DEN by SAS congruence criterion.

What do you mean by congruence of triangle?

Triangle congruence: If all three corresponding sides and all three corresponding angles are equal in size, two triangles are said to be congruent. Slide, twist, flip, and turn these triangles to create an identical appearance. If moved, they coincide with one other. The sign of congruence is’ ≅’. After proving triangles congruent, the remaining dimension can be predicted without actually measuring the sides and angles of a triangle.

In triangle AEM and triangle DEN

AE = DE (Given)

ME = NE (As In triangle MEN , angle M = angle N and sides opposite to equal angles are equal)

angle MEA = angle NED (Vertically opposite angles)

Triangle AEM ≅ Triangle DEN (By SAS congruence criterion)

Therefore, both the trinagles are congruent by SAS congruence criterion.

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please hep me asap!!!

Answers

x= 11 (2x+3x+7=62)
RP= 40 (62-22)

Given ∠4≅∠14, which lines, if any, must be parallel based on the given information? Justify your conclusion. Responses a∥b, converse of the same-side interior angles theorem a is parallel to b, , converse of the same-side interior angles theorem a∥b, converse of the alternate interior angles theorem a is parallel to b, , converse of the alternate interior angles theorem a∥b, converse of the corresponding angles theorem a is parallel to b, , converse of the corresponding angles theorem not enough information to make a conclusion not enough information to make a conclusion Two horizontal, parallel lines, line c and line d, where line c is above line d. These lines are intersected by two diagonal parallel lines, line a and line b. Line a is to the left of line b. The angles created by each intersection are numbered. From top left, going clockwise, the angles where line a intersects line c are labeled eleven, ten, nine, and twelve. The angles where line b intersects line c are labeled seven, six, five, and eight. The angles where line a intersects line d are labeled fifteen, fourteen, thirteen and sixteen. The angles where line b intersects line d are labeled three, two, one and four. Skip to navigation

Answers

If ∠4 ≅ ∠14, then the lines that must be parallel are a and b and so we can say that; a∥b, Converse of the Alternate Interior Angles Theorem

What are Interior Angles?

Interior angles are basically the pair of angles created on the inner side of the parallel lines and right on the opposite sides of the transversal when two parallel lines are intersected by a transversal .

We are told that ∠4 ≅ ∠14, which lines,

If a transversal connects two parallel lines, we know that the corresponding angles and vertically opposite angles are equivalent.

Thus, angle 4 is congruent to angle 14.

Therefore, we can deduce the following;

Angle 15 is a corresponding angle to angle 3 and so we can write that;

∠15 ≅ ∠3

Angle 15 is a vertically opposite angle to angle 13 and so we can write that; ∠15 ≅ ∠13

By transitive property of equality, we can say that;

∠3 ≅ ∠13    [Alternate interior angles]

Thus, we have  ∠4 ≅ ∠14

Therefore, we conclude that a∥b, Converse of the Alternate Interior Angles Theorem.

Hence, the correct answer would be an option (B).

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Quadrilateral PONY is rotated 180° about the origin.
Draw the image of the rotation

Answers

The given quadrilateral PONY is rotated to 180° as P'O'N'Y' and its coordinates are:

P': (2, -7)O': (2, -3)N': (6, -3)Y': (5, -6)

What is rotation?A transformation in geometry is an action that moves, flips, or modifies a shape to produce a new shape. A rotation is an example of a transformation where a figure is rotated a set number of degrees around a fixed point (referred to as the center of rotation).The circular motion of an item around a center or axis is the definition of rotation in mathematics. The rotation of the earth on its axis is one of the best examples of rotation in nature.

So, rotate the given quadrilateral at 180° as follows:

Given quadrilateral: PONY

P: (7, -2)O: (3, -2)N: (3, -6)Y: (6, -5)

Rotate to 180° and plot as follows:

Quadrilateral after rotation: P'O'N'Y'

P': (2, -7)O': (2, -3)N': (6, -3)Y': (5, -6)

(Refer to the graph attached below)

Therefore, the given quadrilateral PONY is rotated to 180° as P'O'N'Y', and its coordinates are:

P': (2, -7)O': (2, -3)N': (6, -3)Y': (5, -6)

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Answer:

P': (2, -7)

O': (2, -3)

N': (6, -3)

Y': (5, -6)

Step-by-step explanation:

the sum of the measures of the angles in the triangle is 180 degrees. what is the measure of each angle? write and solve an equation

Answers

If sum of the measures of the angles in the triangle is 180 degrees then

measures of each angle is 60 degrees.

What is Triangle?

A triangle is a three-sided polygon that consists of three edges and three vertices.

Given,

The sum of the measures of the angles in the triangle is 180 degrees

By angle sum property,  sum of the measures of the angles in the triangle is 180 degrees

Let the measure of angle be x

x+x+x= 180 degrees

3x=180

Divide both sides by 3

x=180/3

x=60

Hence each angle measures 60 degrees.

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What is the value of log10 1000000000

Answers

Answer:

9 i think

Step-by-step explanation:

Which of the following is the independent variable of F(G(x))?
O A. V
• B. x
• C. F(x)
• D. F(G(x))

Answers

Answer:

D

Step-by-step explanation:

Darnell spent 10 hours doing homework. Marie did homework for 4/5 as many
hours as Darnell did. How many hours did Marie spenddoing homework?

Answers

Marie did her homework in 8 hours.

a large company states in its promotional literature that 74% of its employees have college degrees. assume this claim is true. if 3 employees are selected at random from this company, what is the probability that at least 1 of the selected employees will not have a college degree?

Answers

The probability of having at least one employee not have a college degree is 0.595

Here it is given that the 74% of employees have a college degree.

Hence, the probability of one employee having a college degree is

74/100

= 0.74

The probability that an employee does not have a college degree is

1 - 0.74

= 0.26

Hence

The above problem is clearly a Binomial distribution. with n = 120 and p = 0.26

"success" is when one employee does not have a college degree.

Therefore the probability that at least 1 employee does not have a college degree is

P(X≥1)

= 1 - P(X = 0)

A binomial distribution with sample n and probability p has a PMF

ⁿCₓ  X  pˣ X  (1 - p)ⁿ⁻ˣ

where x is a random variable

Here

n = 3

p = 0.28

x = 0

Hence we get

³C₀  X  0.26⁰ X  (0.74)³

0.405

Therefore,

P(X≥1)

= 1 - 0.405

= 0.595

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Given that (x - 2) is a factor of x + x - 5ax + 2a, 'a' can take the value of 2 or which other number? 1)Give an example of a useful product that involves an endothermic reaction or process2)Give an example of a useful product that involves an exothermic reaction or process light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 67% of the intensity of the light passes through the sheet. what angle is the axis of the polarizer oriented, with respect to the vertical? according to keynesian economic theory, what kinds of actions should government take to achieve full employment? heat is transferred at a rate of 2 kw from a hot reservoir at 725 k to a cold reservoir at 300 k. calculate the rate at which the entropy of the two reservoirs changes. (round the final answer to six decimal places.) the rate at which the entropy of the two reservoirs changes is kw/k. is the second law satisfied? Identify one type of mining that is used to extract natural resources from the earth. 33 is 15 less than k A polynomial can be factored by grouping if: HELP!! SOLVER GETS ALL MY POINTS You have a sample of an element. At room tempera-ture, it is a lightweight, brittle solid with a metallicluster. It has fair conductivity that increases withincreased temperature. Do you think the material is ametal, nonmetal, or metalloid?Explain Which of the following statements is true regarding the Law of Conservation ofMatter?Matter cannot be created or destroyedAtoms are not lost or gained in a chemical reaction, but they can rearrangeThe products and the reactants of a chemical reaction must have the samenumber of atoms of every elementOAll of the above Mn2+ions is prepared by dissolving 1.584 g of pure manganese metal in nitric acid and diluting to a final volume of 1.000 L. The following solutions are prepared by dilution. For solution A, 50.00 mL of stock solution is diluted to 1000.0 mL. For solution B, 10.00 mL of A is diluted to 250.0 mL. For solution C, 10.00 mL of B is diluted to 500.0 mL. Calculate the molar concentrations of the stock solution and solutions A, B, and C. An airplane is flying with a force of 800 N. It experiences a force of air resistance of 40 N and a wind force of 60 N, both acting in the opposite direction that the plane is traveling. What is the net force on the airplane? Which of the following is the correct factorization of the polynomial below?x-18A. (x+3)(x-6)B. (x-3)(x+6)C. (x+3)(x - 4x+6)D. The polynomial is irreducible.SUBMIT even though you paid little attention to and did not intentionally try to encode how many times your psychology professor has worn a particular shirt, you can recall that he has worn a particular shirt five times this semester. this type of encoding information without intention is called: The area of a rectangle is given as 90 cm and the length is 3 cm longer than its width. Find the length and the width of the rectangle. describe the following types of assisted reproductive technology: a) Conventional in vitro fertilization b) Intracytoplasmic sperm injection c) laser - assisted hatching d) Artificial insemination A direct democracy is also known as a __________ democracy.A.sureB.pureC.simpleD.representativePlease select the best answer from the choices providedABCD in which ventricular dysrhythmia do three or more pvcs occur in a row with a ventricular rate greater than 100 bpm? With a greater understanding of the neurobiology of behavior and the role of physiology in behavioral expression, explain how this knowledge is important for understanding the variations of behavior in both humans and non-human animals. How is this important for understanding differences in behavioral expressions between species?