A safe has a 4-digit lock code that does not include zero as a digit and no digit is repeated. What is the probability of a lock without all even digits? There to get a lock code with all even digits. There are 3,024 different 4-digit lock codes. There are to get a lock code without all even digits. The probability of a 4-digit lock code without all even digits is

Answers

Answer 1

Answer:

it's 24, 3000, and 3000/3024

Step-by-step explanation:

Answer 2
Final answer:

The probability for a 4-digit lock code using numbers 1-9 with no repeats and not all even is 2,904/3,024.

Explanation:

To solve this, we need to find the total number of possible 4-digit lock codes using digits 1-9 with no repeats and not all even, then divide it by the total number of 4-digit lock codes using digits 1-9 with no repeats. Specifically, the lock code includes 5 different even numbers (2,4,6,8), and 4 different odd numbers (1,3,5,7,9). If the lock code is all even, we will have 5*4*3*2 = 120 possibilities. However, the total possibilities for 4-digit lock codes are 9*8*7*6 = 3,024. Thus the number of codes that are not all even digits is 3,024 - 120 = 2,904. Therefore, the probability for a 4-digit lock code not having all even digits is 2,904/3,024.

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Related Questions

When rounding to.the nearest hundred are you to add or subtract?

Answers

basically you don't really do either, mostly because when your rounding you mostly just look at the number your rounding to. okay so say your number is like 127 you would round to 100 because your number would've been below 150. And we know that five is the middle of every thing. 10 and the whole number system is made up of tens. So when you have to choose to round you have to go up to the next ten so say your number is 27 since it's above 5 you would round to 30. So if you have 127 it's below the 5 mark (which would be 150) so you would round to 100 because it's below that mark. 

Answer:

When you round to the nearest hundred:

150 or higher turns into 200, so you'd do add.

But when it's 149 or lower, you simply subtract it by 49.

Step-by-step explanation:


Anyone know the answer to this geometry problem?

Answers

Let's talk about the choices
◯  ∠4 and ∠5 . . . . . . . . these are complementary angles whose sum is 90°
◯  ∠7 and ∠9 . . . . . . . . these are vertical angles, equal to each other
◯  ∠2 and ∠3 . . . . . . . . these are supplementary angles that together form a straight line. They are a linear pair.
◯  ∠1 and ∠2 . . . . . . . . these are "adjacent" angles in the quadrilateral that also includes ∠9 and ∠10.

The appropriate choice is ...
  ◉  ∠2 and ∠3

18. you work a part-time job earning $6.80/hr with tips that average $2.30/hr. you work 20 hr/wk and your deductions are FICA (7.65%), federal tax withholding (8.95%), and state tax withholding (6.1%). how much are you allowed in housing expenses per month?

Im asking for help not for you to do it.

Answers

Total housing expenses per month allowed will be $168.81.

To calculate how much you are allowed in housing expenses per month, we need to first determine your after-tax income.

You earn $6.80/hr plus tips averaging $2.30/hr, resulting in an hourly wage of

$6.80 + $2.30 = $9.10

Working 20 hours a week gives you a weekly income of

20 hours × $9.10/hr = $182

Monthly, this equates

$182  4 weeks = $728

The deductions are as follows: FICA (7.65%), federal tax withholding (8.95%), and state tax withholding (6.1%). These deductions total to

7.65% + 8.95% + 6.1% = 22.7%

To get the after-tax income, we calculate

$728 - (22.7% × $728)

≈ $562.69

This is your monthly take-home pay.

Financial experts often recommend spending no more than 30% of your take-home pay on housing. Therefore

$562.69 × 30%

= $168.81 houses expenses per month

Anyone know the answer?

Answers

21x - 19 = 3x + 17   |add 19 to both sides
21x = 3x + 36    |substract 3x from both sides
18x = 36     |divide both sides by 18
x = 2

Seven subtracted from the quotient of a number and 2 is -6

Answers

n/2 -7 = -6

add 7 to both sides;
n/2 -7+7 = -6+7

n/2 = 1
multiply both sides by 2 (  or divide by 1/2 ) in order to get n by itself.

n/2 * 2/1 = 1 * 2/1

n = 2

18 / n - 7 = 2  

18 / n =9  

18 = 9n  

2 = n  


18 / 2 - 7 = 2  

9 - 7 = 2  

2 = 2

All at once, pandemonium broke loose. ______________ the marching band came around the corner, dogs began barking, and the horses pulling the mayor's carriage began to run!

Which word best completes the passage above? (5 points)


Anyway

Because

Following

Simultaneously

Answers

Answer:

The answer is word SIMULTANEOUSLY.

Step-by-step explanation:

The alternative that fits best is " d.Simultaneously"

All at once, pandemonium broke loose. Simultaneously, the marching band came around the corner, dogs began barking, the horses pulling the Mayors carriage began to run.

This word maintains the coherence and cohesion of the given text.

Answer:

The alternative that fits best is  " d. Simultaneously"

Step-by-step explanation:

Thus, the complete sentence would read:  "All at once, pandemonium broke loose. Simultaneously the marching band came around the corner, dogs began barking, and the horses pulling the mayor's carriage began to run!"

The explanation for this is that the word "Simultaneously" is the only one that fits the phrase, and maintains the coherence and cohesion of the text.  The words "anyway", "because", and "following", when embedded in the phrase, change the meaning of what the author wanted to go through.

Park rangers released 12 fish into a pond in year 0. Each year, there were twice as many fish as the year before. How many fish were there after x years? Write a function to represent this scenario.

Answers

y = 12 + 2x

This is probably right. I'm 99% sure. :)

Answer: The function would be,

[tex]f(x)=12(2)^x[/tex]

Step-by-step explanation:

Given,

Park rangers released 12 fish into a pond in year 0,

Thus, the initial number of fish = 12,

Also, there were twice as many fish as the year before,

⇒ After 1 year the number of fishes = 2(12) = 12(2),

Similarly,

After 2 years = 2(12(2))= 12(2)²,

After 3 years = 2(12(2)²) = 12(2)³,

................, so on,....

Thus, the number of fishes after x years would be,

[tex]12(2)^x[/tex]

Let f(x) represents the number of fish after x years,

[tex]\implies f(x) = 12(2)^x[/tex]

Which is the required function that the given scenario.

The relationship between the monthly fee for Brandon’s phone and the price per minute for long distance is modeled by the linear function f (x) = 0.05x + 3, where x is the number of minutes used for long distance. What is the total bill if Brandon used 20 minutes of his long distance service in a month?

Answers

If you use 0.05x+3 (x equal to the number of minutes) it would be 0.05(20) + 3 = 4. Pretty sure this is correct, but you might want to check it.

the linear function f (x) = 0.05x + 3,

f(x) is the monthly fee and x is the price per minute

Brandon used 20 minutes of his long distance

So x is 20 minutes

We plug in 20 for x

f(x) = 0.05x + 3

f(20) = 0.05(20) + 3 = 4

So total bill is  $4 if Brandon used 20 minutes of his long distance service in a month

What is the recursive formula for the sequence 3, 12, 48, 192, 768...?

Answers

Final answer:

The given sequence is a geometric sequence. Each term in the sequence multiplies by 4 to obtain the next. Therefore, the recursive formula for the sequence is an = 4 * an-1.

Explanation:

The given sequence is: 3, 12, 48, 192, 768, and so on. Looking at the sequence, we can see that each term is multiplied by 4 to get the next term. So, the sequence is a geometric sequence. The recursive formula for a geometric sequence is given by: an = r * an-1, where an is the nth term, r is the common ratio, and an-1 is the previous term. In this case, r equals 4 (since we are multiplying each term by 4 to get the next term). Thus, "the recursive formula for this geometric sequence is: an = 4 * an-1".

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1 and 2 are a linear pair, and 2 and 3 are vertical angles. m 2=(5+4 y) and m 3=(6 y-25). what is m 1

Answers

vertical angles are equal to each other:
        ∠2     =    ∠3
     5 + 4y = 6y - 25
 →      30 = 2y
→       15 = y

∠2 = 5 + 4y = 5 + 4(15) = 5 + 60 = 65

linear pairs equal 180:
     ∠1 + ∠2 = 180
→ ∠1 + 65 = 180
→      ∠1    = 115

john buys a new bedroom set on credit for $2760 and no interest. he pays $115 per month. what is the equation that models the money john owes?

Answers

Suppose that the equation is modeled by a linear equation:
let the amount owed by John, is y at time time,x.
the linear equation is given by:
y=mx+c
where:
m=slope
c=y-intercept
from the information:
c=$2760
m=$115
thus amount owe will be:
y=-115x+2760

Given the three vertices F(-5, 0), G(3, -3), and H(-2, 8), what are the coordinates of I that make quadrilateral FGIH a square

Answers

The coordinates are: (6,5)

A box contains 3 blue and 2 red pens while another box contains 2 blue and 5 red pens. a pen drawn at random from one of the boxes turns out to be blue. what is the probability that it came from the first box

Answers

There are 5 blue pens total, 3 are from the first box and 2 are from the second. The probability of pulling a blue pen from the first box and not the second is 3/5.

The probability of getting blue from the first box is 3/5.

Given that, a box contains 3 blue and 2 red pens while another box contains 2 blue and 5 red pens.

What is the probability?

Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event. For an experiment having 'n' number of outcomes, the number of favourable outcomes can be denoted by x. The formula to calculate the probability of an event is as follows.

Probability(Event) = Favorable Outcomes/Total Outcomes = x/n.

The probability of getting blue from the first box:

The number of favourable outcomes = 3 and the number of total outcomes =5

So, P(E) = 3/5

The probability of getting blue from the second box:

The number of favourable outcomes = 2 and the number of total outcomes =7

So, P(E) = 2/7

Therefore, the probability of getting blue from the first box is 3/5.

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Solve the open sentence.

–2 ≤ n + 4 ≤ 7



A. n ≤ 2 and n ≤ 7


B. n ≥ –6 and n ≤ 3

C. n ≥ 6 and n ≤ –4


D. n ≤ –6 and n ≤ 4

Answers

–2 ≤ n + 4 ≤ 7    |-4

–6 ≤ n ≤ 3

Answer: B. n ≥ –6 and n ≤ 3

PLEASE HELP I NEED SOMEBODY TO PARAPHRASE THIS FOR ME! I'LL MARK BRAINLIEST!! 50 POINTS!!!


if the variables cancel out leaving u with an untrue statement, like 0 = 4 or 2 = 6, then u will have no solutions
if the variables cancel out leaving u with a true statement, like 2 = 2 or 4 = 4, then u will have infinite solutions
if u end up with a variable equaling a number, then u have 1 solution

Answers

3x + 4 = 2x + 2
3x - 2x = 2 - 4
x = -2
one solution
3x+4=2x+2
3x-2x=2x+2-2x
1x=2

The other person is wrong

A professor uses a video camera to record the motion of an object falling from a height of 250 meters. The function f(x) = –5x2 + 250 can be used to represent the approximate height of the object off the ground after x seconds. Which is the best estimate for the amount of time elapsed when the object is 120 meters off the ground? 4 seconds 5 seconds 6 seconds 7 seconds
(The answer is 5 seconds)

Answers

did you answer your own question?

Answer:

B is the answer

Step-by-step explanation:

i just took the test

What is the difference for this question?

Answers

removing the parentheses gives
5x^2 + 2x + 11 - 7 - 4x  + 2x^2
= 7x^2 - 2x + 4
For this case we have the following polynomials:
 (5x2 + 2x + 11) - (7 + 4x - 2x2)
 Rewriting we have:
 5x2 + 2x + 11 - 7 - 4x + 2x2
 By grouping terms of the same degree we have:
 x2 (5 + 2) + x (2-4) + (11-7)
 Rewriting:
 7x2 - 2x + 4
 Answer: the difference is
 7x2 - 2x + 4

What is the IMA of the doorknob shown?

1.5
3
6
15

Answers

To solve this problem you must apply the proccedure shown below:

 1. You must apply the following formula for calculate the IMA of the doorknob shown in the figure attached of the problem above:

 IMA=outer radius/inner radius

 outer radius=3 cm
 inner radius=0.5 cm

 2. When you substitute these values into the formula, you obtain:

 IMA=3 cm/0.5 cm
 IMA=6

Therefore, the answer is: 6

Answer:

6

Step-by-step explanation:

A flagpole stands on a concrete region, as shown. What is the approximate perimeter of the concrete region? Use 3.14 for π.
Thanks!

Answers

The approximate perimeter is 25.12 feet.

The outer edges of the concrete region form semicircles.  The perimeter of a circle is called the circumference, and is given by the formula
C=πd

Since these are semicircles, the circumference is given by C=1/2πd.

There are 4 of these semicircles, so the total would be
C=4(1/2)πd

The diameter of each one is 4 feet:
C=4(1/2)(3.14)(4) = 25.12

What is the simplified form of the following expression? 10abc^2 sqrt 49a^2b^2c^2


Answers

Answer: [tex]70a^2b^2c^3[/tex] will be the answer.

Explanation:

Since Given expression is [tex]10abc^2\sqrt{49a^2b^2c^2}[/tex]

We can write, [tex]10abc^2\sqrt{49a^2b^2c^2}= 10abc^2\sqrt{7^2a^2b^2c^2}[/tex]

[tex]\Rightarrow 10abc^2\sqrt{49a^2b^2c^2}= 10abc^2\sqrt{(7abc)^2}[/tex]

[tex]\Rightarrow 10abc^2\sqrt{49a^2b^2c^2}= 10abc^27abc[/tex]

[tex]\Rightarrow 10abc^2\sqrt{49a^2b^2c^2}= 10\times7abc^2abc[/tex]

[tex]\Rightarrow 10abc^2\sqrt{49a^2b^2c^2}= 70abc^2abc[/tex]

[tex]\Rightarrow 10abc^2\sqrt{49a^2b^2c^2}= 70a^2b^2c^3[/tex]

1. The simplified form of the expression [tex]10abc^2[/tex] is simply [tex]10abc^2[/tex] itself.

2. The simplified form of the expression [tex]\sqrt{49a^2b^2c^2}[/tex] is 7abc.

1. Since there are no like terms to combine, and no operations to perform, the expression remains unchanged.

2. The expression [tex]\sqrt{49a^2b^2c^2}[/tex] represents the square root of [tex]49a^2b^2c^2[/tex]. To simplify this, we need to find the square root of each term under the radical.

[tex]\sqrt{49a^2b^2c^2} = \sqrt{49} * \sqrt{a^2} * \sqrt{b^2} * \sqrt{c^2}[/tex]

The square root of 49 is 7, and the square root of any variable raised to the power of 2 is simply the variable itself. So, we have: [tex]\sqrt{49a^2b^2c^2} = 7 * a * b * c[/tex]

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Which number is irrational? A. square root of 64 B. square root of 256 C. square root of 100 D. square root of 80

Answers

the square foot is 100 that is the number that is irrational ur welcome.
D its 80 square root of 80 is 8.94427191

The variable z varies jointly with x and y. also, z = -75 when x = 3 and y = -5. what equation describes this variation?

Answers

The equation describing variation will be found as follows:
zαxy
z=kxy
where k is the proportionality constant
k=z/xy
when x=3, y=-5 then z=-75
k=-75/(-5*3)=5
hence the formula will be:
z=5xy


Answer:

c

5

-10

Step-by-step explanation:

How many two-digit positive integers can be formed from the digits 1, 5, 6, and 8 if no digit is repeated?

Answers

Total Number of digits = 4

We have to fill two places using the 4 digits without repeating the digits.

The first place digit can be filled in 4 ways. When first place is filled, one number is already taken, so now we can fill the second place using remaining 3 digits (3 ways)

So, the total number of ways of forming 2 digit numbers = 4 x 3 = 12 ways

explain one of the theorems that you would use to find the zero of higher degree polynomial

Answers

Rational Root Theorem:


If the rational number [tex]x=\frac{b}{c}[/tex] is a zero of a higher degree polynomial:

[tex]P(x)=kx^{n}+...+m[/tex]


where all the coefficients are integers. Then [tex]b[/tex] will be a factor of [tex]m[/tex] and [tex]c[/tex] will be a factor of [tex]k[/tex]


1. Use the rational root theorem to enumerate all possible rational zeroes of the polynomial [tex]P(x)[/tex]


2. Evaluate the polynomial from the first step until you can find a zero. Let’s suppose the zero is [tex]x=r[/tex]. It will be a zero if [tex]P(r)=0[/tex]. Then if this is true, write the polynomial as:

[tex]P(x)=(x-r)Q(x)[/tex]


3. Repeat this process using [tex]Q(x)[/tex] this time rather than [tex]P(x)[/tex]. The process finishes until we reach a second degree polynomial, then solve as it is widely known for a quadratic equation.


Due tomorrow please help

Answers

For some of these, a calculator is helpul.

The sum is 294903.

_____
This is the sum of 15 terms of a geometric sequence with first term 9 and common ratio 2. That sum is given by the formula
[tex]S_{n}=a\dfrac{r^{n}-1}{r-1}[/tex]
[tex]S_{15}=9\dfrac{2^{15}-1}{2-1}=9\cdot(32768-1)=294903[/tex]

Prove and show your work
cos t (sect -cos t)= sin^2 t
sin 0 cot 0= cos 0

Answers

1) Manipulating the Left side
cost · sect - cos²t (Note: sect= 1/cost, cos²t = 1-sin²t)
cost · (1/cost) - (1 - sin²t)
       1            - 1 + sin²t
               0          + sin²t
                             sin²t

2) Manipulating the Left side
sinФ · cotФ (Note: cotФ = cosФ/sinФ)
sinФ · (cosФ/sinФ)
(sinФ · cosФ)/sinФ
cosФ 

Solve the proportion. Show your work.

Answers

3/x+1=5/11 first cross multiply 
3*11=33 and 5*x+1= 5x+5          5x+5=33 
then subtract 5 on both sides 5x+5-5=33-5 
5x=28 so divide 5 on both sides 
5x/5=28/5 
x= 5.6
Hope I Helped 

Ginger wanna join a gym.she goes to the local gym and is told that there is a one-time fee of $100 to join and then a monthly fee of $30.if she belongs to the gym for one year then the 12th month is free.how much will a one year membership cost her?

Answers

100+30m from the last problem
100+30(11)
100+330
430 dollars, which is highway robbery..

point m lies between point L and N on LN

Answers

Answer:

  64 units

Step-by-step explanation:

Segment addition holds, so we can write ...

  LM + MN = LN

  (10x +8) +(5x-4) = (12x +16)

  15x + 4 = 12x + 16 . . . . . . . . collect terms

  3x -12 = 0 . . . . . . . . . . . . . .  subtract 12x+16

  x-4 = 0 . . . . . . . . . . . . . . . . . divide by 3

  x = 4 . . . . . . . add 4

LN = 12x +16 = 12·4 +16 = 48 +16 . . . . . substitute into the expression for LN

LN = 64 . . . . units

PLEASE HELP URGENT!!!
The price of the land is $2300 per acre ( 1 acre = 4840) how much does the land cost?

Answers

Two of the three side lengths are given.  To find the area of the triangular piece of land, we'll need to calculate the length of the third side, the side opposite the 100 degree angle.  Use the Law of Cosines for this task.

a^2 = b^2 + c^2 - 2ac*cosA

Here, a^2 = 500^2 + 750^2 - 2(500)(750)cos 100 deg, or

          a^2 = 250000 + 572500 - 750000(-0.1736), or
                 = 692264

Then a = +sqrt(692264) = 832 yds

Use Heron's Formula to find the area of the land.

First, calculate s=(a+b+c)/2:  (500+750+832)/2 = 1041=s

According to Heron's Formula, A = sqrt( s(s-a)(s-b)(s-c) )

Here, A = sqrt( 1041*(1041-500)*(1041-750)*(1041-832) )

I will leave this calculation to you to complete.

Suppose the area of the land is A square yards.  Convert this to acres, using the fact that 1 acre = 4840 yd^2.

In acres, the area is 

          1 acre
A* ---------------- = (A/4840) acres
        4840 yd^2

How much will this cost?  Recall that the unit cost of the land is $2300/acre.

Then the total cost will be:
                             $2300
(A/4840) acres * ------------- = 0.475*A dollars.  (Substitute your value for A)
                              1 acre

Two of the three side lengths are given.  To find the area of the triangular piece of land, we'll need to calculate the length of the third side, the side opposite the 100 degree angle.  Use the Law of Cosines for this task.


a^2 = b^2 + c^2 - 2ac*cosA


Here, a^2 = 500^2 + 750^2 - 2(500)(750)cos 100 deg, or


         a^2 = 250000 + 572500 - 750000(-0.1736), or

                = 692264


Then a = +sqrt(692264) = 832 yds


Use Heron's Formula to find the area of the land.


First, calculate s=(a+b+c)/2:  (500+750+832)/2 = 1041=s


According to Heron's Formula, A = sqrt( s(s-a)(s-b)(s-c) )


Here, A = sqrt( 1041*(1041-500)*(1041-750)*(1041-832) )


I will leave this calculation to you to complete.


Suppose the area of the land is A square yards.  Convert this to acres, using the fact that 1 acre = 4840 yd^2.


In acres, the area is 


         1 acre

A* ---------------- = (A/4840) acres

       4840 yd^2


How much will this cost?  Recall that the unit cost of the land is $2300/acre.


Then the total cost will be:

                            $2300

(A/4840) acres * ------------- = 0.475*A dollars.  (Substitute your value for A)

                             1 acre


1

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