PLZ HELP I DONT UNDERSTAND A password for a security system must consist of a eater followed by two digits. How many possible passwords are there?

Answers

Answer 1

Answer:

7020

Step-by-step explanation:

The letter could be any 1 of the 26 and it could be placed in any 1 of 3 places so this makes 26*3 = 78 possibilities.

For each of these  there is any one of  permutations of 2 digits from 10

= 10P2 = 10! / 8! = 10*9 = 90.

So the answer is 78 * 90 =  7020.

Note I am assuming that the 2 digits picked are different - no duplicates.

please mark me brainliest!


Related Questions

Segment RT and Segment GJ are chords that intersect at point H. If RH = 6 units, HT = 5 units, and GH = 3 units, what is the length of line segment HJ? A.) 20 B.) 10 C.) 5 D.) 40

Answers

Answer:

B.) 10 i think

Step-by-step explanation:

Write the equation in slope-intercept form. y=−6(x−3)+2x

Answers

Answer:

y=-4x+18

Step-by-step explanation:

y=-6(x-3)+2x

Distribute -6 to the (x-3)

y=-6x+18+2x

Combine like terms

y= -4x+18

Answer: y = -4x + 18

Step-by-step explanation:

First do distributive property

y = (-6x + 18) + 2x

Next, combine like terms

y = -6x + 2x + 18

y = -4x + 18

What stamens is converse of p
p: If every fourth card drawn is a spade, then 25% of the cards in a deck would be spades. If 25% of the cards in a deck are spades, then every fourth card drawn would be a spade. If every fourth card drawn isn’t a spade, then 25% of the cards in a deck aren’t spades. If 25% of the cards in a deck aren’t spades, then every fourth card drawn wouldn’t be a spade. If every fourth card drawn isn’t a spade, then 75% of the cards in a deck are spades.

Answers

Answer:25

Step-by-step explanation:

Get monkeyd

I need help ASAP!! If you know what you’re doing go ahead and answer but if you don’t, don’t even bother thanks

Answers

Answer:

133.97 cm³

Step-by-step explanation:

The volume of a cone is given by:

[tex]V = \frac13 \pi r^2h[/tex]

r is half the diameter, so 4 cm

h is 8 cm

So:

V= 1/3 * 3.14 * 16 * 8 ≈ 133.97 cm³

536 to the nearest hundredth
Solution: 3.14*r^2 *h/3
r: 8
h:3
3.14*8^2*8/3

1.Un número complejo multiplicado por su conjugado da siempre:
a. (1,0)
b.Un imaginario puro
c.Un número real
d.Un número complejo
2.El conjugado del número complejo -2-5i es:
a. -2
b. 2-5i
c. 2+5i
d. -2+5i
3.El producto de los números complejos 2+3i con 4-5i es:
a. 23 +2i
b. 23-2i
c. -7+22i
d. 7-22i
4.Dados los números complejos Z1: 2+3i Z2: 4-5i ¿Cuál es el cociente entre la conjugada de Z1 con Z2:
a. 23-2i
b. 41 -4i
c. No es posible determinar el resultado
d. 23/41 -(2/41)i
5.Dado que el número imaginario i= √-1 entonces es posible afirmar que i5
a. -i
b. i
c. -1
d. 1
6. siguiente igualdad i17 + i18 =2i es
a. Falsa, porque, i elevado a cualquier núemro es igual a -1
b. Falsa, porque, es imposible que dos potencias imaginarias den el mismo resultado
c. Falsa, porque, el verdadero resultado de i17 + i18 es -i
d. Verdadera, porque, los números complejos también se pueden sumar
7.¿Cuál de las siguientes afirmaciones es verdadera?
a. El conjunto de los números complejos es finito
b. El conjunto de los números resulta de la union de los números reales y los números imaginarios
c. El conjunto de números complejos se encuentra contenido en el conjunto de números reales
d. El conjunto de números Complejos resulta de la union de los números racionales e irracionales

Answers

b. 2+5i dis the answer
1. C
2. D
3. A
4. D
5. B
6. B
7. B

Which of the following expressions is equivalent to -10? Which of the following expressions is equivalent to -10?
-7 + 3
-3 - 7
3 - 7
7 - 3

Answers

Answer:

-3-7

Step-by-step explanation:

-3-7=10

Answer:

-3 - 7.

Step-by-step explanation:

-3 - 7 = -10.

Please help me.. very appreciated if you do

Answers

1 Answer:

D

2 Answer:

B

Step-by-step explanation:

-x ≤ -3

all we should do here is multiply both sides by -1 and switch the sign ≤ since we multiplied by a negative number

-x ≤ -3 x ≥ 3

x is equal or greater than 3 so 3 is included

3 will be represented by a clored dot

so the graph is D

-6- x ≤ -3

again multiply by -1 to get rid of the - signs and switch ≤ by ≥ since it's a negative number

-6 -x ≤ -3 6+x ≥ 3                substract 6 from both sides x+6-6 ≥ 3-6 x ≥ -3

x is equal or greater than -3  so -3 is included

the graph is b since there is a dot in -3

Triangle QRS is a right triangle with the right angle at vertex R. The sum of m∠Q and m∠S must be

Answers

Answer:

90 degrees

Step-by-step explanation:

Answer:

you didn't specify much!

So I am saying they are 45° each and that make the sum of both 90°

Step-by-step explanation:

According to the triangle sum theorem, all the angles in a triangle must add up to 180. If one angle is 90° the other two have to add up to 90°,

What are the coordinates of point S? On a coordinate plane, point S is 0.75 units to the left and 0.5 units up. (Negative three-fourths, one-half) (Negative one-half, negative three-fourths) (One-half, Negative three-fourths) (Three-fourths, one-half)

Answers

Answer:

The coordinates of S is [tex]( \frac{-3}{4}, \frac{1}{2})[/tex]

Step-by-step explanation:

We are supposed to find the coordinates of point S

Point S is 0.75 units to the left

So, x coordinate of point S = -0.75 = [tex]\frac{-3}{4}[/tex]

Now we are given that point S is 0.5 units up.

So, y coordinate of point S = 0.5 = [tex]\frac{1}{2}[/tex]

So, The coordinates of S is [tex]( \frac{-3}{4}, \frac{1}{2})[/tex]

So, Option A is true .

Answer:

A -3/4,1/2

Step-by-step explanation:

good luck:)

My number is odd. It is a factor of 30 and a multiple of 3 what are my 2 numbers?

Answers

Answer:

3 and 15

Step-by-step explanation:

Factors of 30

30 = 2 , 3 , 5 , 6 , 10, 15  

Odd numbers are: 3, 5, 15

Odd number & multiple of 3  are: 3 and 15

The required two odd numbers are 3 and 5.

We have to determine,  It is a factor of 30 and a multiple of 3 what are 2 numbers.

To obtain the factor of 30 and 2 numbers is calculated in the following steps.

The Factors of 30 are,

30 = 2 , 3 , 5 ,

And multiply the terms by 2,

[tex]= 2\times 2 , \ 2 \times 3,\ 2 \times5 \\\\=4, \ 6,\ 10[/tex]

After multiply by 2 all the term become even.

Then,

The 2 odd numbers are: 3, 5

Hence, The required two odd numbers are 3 and 5.

To know more about Odd numbers click the link given below.

https://brainly.com/question/16871801

which answer describes the graph of the system of equations?

Answers

Answer:

D, the lines coincide.

Step-by-step explanation:

isolate the y so theres no 2y, only y:

2y = 8 - 2x (divide both sides by 2)

y = 4 - x

The lines are the same line, so while they are plural, they also coincide, as one lies on top of the other.

Hope this helps :) Brainliest??

Answer:

its D

Step-by-step explanation:

Patty buys a new car and gets it appraised every few years. After owning the car for 3 years, it’s value is $15,000. After owning the car for 5 years, it’s value is $9,000. What is the constant of proportionality in this inverse variation?

Answers

Answer: $3,000 per year

Step-by-step explanation: 15,000 divided by 9,000 is 6,000, 5 minus 3 is 2 6,000 divided by 2 equals 3,000.

After 2.4 hours Jenny had traveled 216 miles. If she travels at a constant speed, how far will she have traveled after 4 hours

Answers

Answer:bruh

Step-by-step explanation:

I couldn’t even tell u

What is the y-intercept of the line whose equation is 2x-3y=-6

Answers

Answer:

(0, -2)

Step-by-step explanation:

Step 1: Write equation in slope-intercept form

-3y = 6 - 2x

y = -2 - 2/3x

Step 2: Find y-int

y = -2 -2/3(0)

y = -2

(0, -2)

A drawer contains three red marbles, four green marbles, and five blue marbles. One marble is taken from the drawer and then replaced. Another marble is taken from the drawer. The problem models: a dependent event. independent events.

Answers

Answer:

independent events

Step-by-step explanation:

dependent is when the previous event affects the outcome of the next event.

Ex: When I draw a card without replacement at first I will have 52 cards. Once I draw the card, I will have only 51 cards to choose from.

Independent event is when the outcome is not related.

Example like the problem given to you

Complete the solution to y = cos-1(1).
a) y = 2 pi k
b) y= pi k
c) y = pi ± pi k

Answers

Answer:

a) y = 2 pi k

Step-by-step explanation:

Given the solution to the equation y to be cos⁻¹(1)

y = cos⁻¹(1)

y =0°

In trigonometry identity, the general solution for cosine function is expressed as θ = 2kπ ± n, where n is any integer.

Substituting the solution gotten to the equation above into the general formula θ = 2kπ ± n, will give;

y = 2kπ ± n

since we have just one solution, we will find the value of y at n = 0

y = 2kπ ± 0

y = 2kπ

I need help pls A certain university in the United States has a student enrollment of 19,100. Mr. Hill knows the percentage of students that are male and the percentage of students that are female. Suppose a student reaches in the bag and randomly selects nine red chips and eleven yellow chips. Based on this sample, what is a good estimate for the number of enrolled university students that are male?

Answers

Answer:

About 8595 students

Step-by-step explanation:

If approximately 9/20 of the students are male, multiplying this by the total number of students enrolled will give a good approximation of the total number of enrolled males. 9/20 * 19100=8595. Hope this helps!

Answer:

8595

Step-by-step explanation:

9/11 is the ratio of male to female

9/20 of students are male and 11/20 are female

If total number is 19100,

then male= 19100*9/20= 8595

What formula tells the cost, in dollars, if
chocolate chip cookies are $1.50/dozen and
lemon frosteds are $ 1.00/dozen? Let c =
number of dozens of chocolate chip cookies; L=
number of dozens of lemon frosteds; T = total
charge.

Answers

Answer:

T = $1.50C + $1.00L

Step-by-step explanation:

Chocolate chip cookies - $1.50/dozen

C: # of dozens of chocolate chip cookies

$1.50C

Lemon Frosteds - $1.00/dozen

L: # of dozens of lemon frosteds

$1.00L

T(total) = $1.50C + $1.00L

Hope that helps.

what would the variables for a and b be? 3/x + 5/x^2 = (ax+b)/x^2

Answers

Answer:

a=3,b=5

Step-by-step explanation:

[tex] \frac{3}{x} + \frac{5}{ {x}^{2} } \\ = \frac{3x}{ {x}^{2} } + \frac{5}{ {x}^{2} } \\ = \frac{3x + 5}{ {x}^{2} } [/tex]

so as you got it:

[tex] \frac{(ax + b)}{ {x}^{2} } = \frac{3x + 5}{ {x}^{2} } \\ a = 3 \\ b = 5[/tex]

Please answer this question now in two minutes

Answers

Answer:

  y = 2x +10

Step-by-step explanation:

The point-slope form of the equation for a line is ...

  y -k = m(x -h) . . . . . line with slope m through point (h, k)

__

Comparing this to the given equation, we see that line s has a slope of -1/2. The perpendicular line t will have a slope that is the negative reciprocal of this:

  m = -1/(-1/2) = 2

Using the above point-slope form equation, we can write the equation of line t as ...

  y -4 = 2(x -(-3))

  y = 2x +6 +4 . . . . add 4, simplify

  y = 2x +10 . . . . equation of line t

Simplify the expression in the following photo.

Answers

Answer:

0

Step-by-step explanation:

If we factor out √5a from the numerator we have √5a * (√4 - √9 + √1) / √5a. √5a cancels out so we are left with √4 - √9 + √1 which equals 2 -  3 + 1 = 0.

I NEED HELP PLEASE, THANKS! :)

Answers

Answer:  2157

Step-by-step explanation:

3 | 5    10     3      8       -6      -3  

  | ↓    15   75   234   726   2160

   5    25   78   242   720   2157  ← remainder = f(3)

Answer:

Step-by-step explanation:

f(x)=5x^(5)+10x^(4)+3x^(3)+8x^(2)-6x-3, f(3)

means that : 5x^(5)+10x^(4)+3x^(3)+8x^(2)-6x-3 is divided by x-3

it won't let me add more attachments


Work out the size of angle x.
304°
115)
X​

Answers

Answer:

121

Step-by-step explanation:

Angles on a line add up to 180.

180 - 115 = 65

Angles in a circle add up to 360 degrees.

360 - 304 = 56

Angles in a triangle add up to 180 degrees.

180 - 56 - 65 = 59

Angles on a line add up to 180 degrees.

180 - 59 = 121

Following are the calculation to the angle:

Given:

Please find the given question.

To find:

angle=?

Solution:

The sum of all the angles on a line is 180.

[tex]\to 180^{\circ} - 115^{\circ} = 65^{\circ}[/tex]

A circle's angles sum up to [tex]360^{\circ}[/tex]

[tex]\to 360^{\circ} - 304^{\circ} = 56^{\circ}[/tex]

The triangle's angles sum up to [tex]180^{\circ}[/tex].

[tex]\to 180^{\circ} - 56^{\circ} - 65^{\circ}= 59^{\circ}[/tex]

The line's angles sum up to [tex]180^{\circ}[/tex].

[tex]\to 180^{\circ} - 59^{\circ} = 121^{\circ}[/tex]

Therefore, the final answer is "[tex]121^{\circ}[/tex].."

Learn more:

brainly.com/question/18255413

4. How else can the ratio 4/5 be written?
O A.4:5
O B.5:4
O C.54
O D..2

Answers

Answer:

Answer is option a) 4:5

Step-by-step explanation:

[tex]the \: ratio \: \frac{4}{5} can \: \\ also \: be \: written \: as \: 4 : 5[/tex]

HAVE A NICE DAY!

THANKS FOR GIVING ME THE OPPORTUNITY TO ANSWER YOUR QUESTION.

A particular movie theater charges $ 9.00 per adult ticket and $ 3.5 0 per child ticket. Suppose 550 people attended a movie and the total revenue from ticket sales was $ 3575 . Write two linear equations to represent a system to solve this, where x represents the number of adults attending the movie and y represents the number of children attending the movie. Write the equations, but do not solve them. The first equation must come from the information given about the total attendance and the second must come from the ticket prices and revenue. 1)= ? 2)= ?

Answers

Answer:

If x represents the no. of adults

and y represents the children, then

x + y = 550

9x + 3.50y = 3575

Answer:

Step-by-step explanation:

Number of children = y

Number of adults = x

Total people = 550

x + y = 550 ------------------ (I)

Charge for 'y' children =3.50 * y = 3.5y

Charge for 'x' adult = 9 * x = 9x

Total amount = $ 3575

9x  + 3.5y = 3575 -------------(II)

Multiply equation (I) by (-9)

(I)*(-9)  -9x - 9y = -4950  

(II)         9x  + 3.5y = 3575  { Now add and so 'x' will be eliminated}

                  - 5.5y   =  -1375

y = -1375/-5.5

y = 250

Plug in y = 250 in equation (I)

x + 250 = 550

            x = 550 - 250

            x = 300

Number of children = 250

Number of adults = 300

What is the missing number from 18,27,36,?, 54

Answers

Answer:

45

Step-by-step explanation:

18 + 9 = 27

27 + 9 = 36

36 + 9 = 45

Thus,

45 is the answer.

Hope this helps :)

Answer:

45

Step-by-step explanation: 18, 27, 36, 54 are all the multiples of 9..

so..

9*2=18

9*3=27

9*4=36

9*5=45and, 9*6=54therefore, the missing number is 45.

HOPE IT HELPS:)

So could someone help me on this

Answers

Answer:

B. -6

Step-by-step explanation:

hope this helps!

Answer:

-6

Step-by-step explanation:

from (-6,-4) to (x,8) there are already 12 spaces in between the y- axis from -4 to 8. So because there are already 12 spaces in between you dont need to add any space between x and -6 so you can conclude that if x is -6 then there will be 12 spaces inbetween because of -4 and 8

What is the midpoint of the segment (-1, 5) (5, 5

Answers

Answer:

Midpoint: (2, 5)

Step-by-step explanation:

Midpoint Formula: [tex](\frac{x_1+x_2}{2} ,\frac{y_1+y_2}{2} )[/tex]

Simply plug in the coordinates into the formula:

x = (-1 + 5)/2

x = 4/2

x = 2

y = (5 + 5)/2

y = 10/2

y = 5

The function h(t) = 2.3 + 50t - 1.86t^2 models the height of an arrow shot from a bow on Mars, where h(t) is the height in metres and t is time in seconds. How long does the arrow stay in flight?

Answers

Answer:

The arrow stay in flight for 26.92 seconds

Step-by-step explanation:

We are given that  the height of an arrow shot from a bow on Mars is modeled by equation:

[tex]h(t) = 2.3 + 50t - 1.86t^2[/tex]

Where h(t) is the height of arrow

t is the time in seconds

Now we are supposed to find How long does the arrow stay in flight?

Substitute h(t)=0

So,[tex]2.3+50t-1.86t^2=0[/tex]

[tex]1.86t^2-50t-2.3=0[/tex]

t=-.04 , 26.92

Since the time cannot be negative

So,the arrow stay in flight for 26.92 seconds

sorry i meant to put this picture.. for math

Answers

Answer:

Area = 4.5 cm²

Step-by-step explanation:

Area of Triangle ABD = [tex]\frac{1}{2} Base * Height[/tex]

Where Base = 3 cm, Height = 3 cm

So,

Area = 1/2 (3*3)

Area = 9/2

Area = 4.5 cm²

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