Please please help please

How many license plates can be made using 3 digits and 3 letters of repeated digits and letters are allowed? how many can be mad

BARSIC [14]

26 total letters, 10 total digits

with repeated letters/numbers:

26 * 26 *26 * 10* 10*10 = 17,576,000 ways

without repeats:

26 *25*24 *10 *9*8 = 11,232,000 ways

8 0

3 years ago

800x87979 cuanto es?

uranmaximum [27]

800x87979 es 70, 383, 200

Espero que esto te ayude

3 0

3 years ago

Read 2 more answers

Two houses on the same side of the street have house numbers that are consecutive

DochEvi [55]

Answer: 28 and 30

Step-by-step explanation:

Let the house numbers on the street be represented by n and n+2 sine they are consecutive even integers. Therefore,

n + (n + 2) = 58

2n + 2 = 58

2n = 58 - 2

2n = 56

n = 56/2

n = 28

Therefore the second number will be:

= n + 2

= 28 + 2

= 30

The numbers are 28 and 30

6 0

3 years ago

Solve the following equations. You will need to show your work in order to receive full credit.

vodomira [7]

Hello from MrBillDoesMath!

Answer: x = 10 for 4x - 8 = 32

x = -5 for 2(x-5) = -20

Discussion:

------------------------------

4x - 8 = 32 (*)

Add 8 to both sides:

4x - 8 + 8 = 32 + 8 =>

4x = 40 =>

x = 10

-----------------------------------------------

2(x-5) = 2x - 2(5) =>

2x - 10 = -20 (**)

Add 10 to each side of (**):

2x - 10 + 10 = -20 + 10 =>

2x = -10

x = -5

Thank you,

MrB

7 0

4 years ago

Can anyone help with these ? I'll give brainlyiest to anyone that can help with all of them! :) Thank you in advance .

Julli [10]

Answer:

1. (a) A function is a mapping $f:x\rightarrow y$ where there should be different values of y for different x.

So, given ordered pairs:

(3,7), (3,8) ,(3,-2) ,(3,4) ,(3,1)

It is not a function because there are multiple y values for single x-value.

Option 2 is correct.

(b) We need to find range of the function f(x)= -4x +1

So, we have given the domain which means the value of x we will put thses given values of x to find y

Values of y is the range in a function

So, given domain is: {-5,-1,0,2,10}

When $x= -5$

$y=-4(-5)+1=21$

When $x=-1$

$y=-4(-1)+1=5$

when $x=0$

$y=-4(0)+1=1$

when $x=2$

$y=-4(2)+1=-7$

when $x=10$

$y=-4(10)+1=39$

So, Range is: {-39,-7,1,5,21}

Option 1 is correct.

(c) We have given a function $v(c)=98c$

Where c is the number of cup jug of milk which is 16.

Put c=16 in given function

$v(c)=98\cdot 16$

$v(c)=1568$

So, c=16, v(c)=1568 is reasonable domain and range of the function.

Option 1 is correct.

(d) We need to find the inverse of given ordered pairs (1,2) (3,4) ,(6,8)

So, the inverse means values of x and y interchange.

So, the required inverse is: (2,1) ,(4,3) ,(8,6)

Option 3rd is correct.

2. We need to find the inverse of given scatter plot in which we have to find the inverse

So, given scatter plot represents (-4,-2) ,(1,-1) ,(2,1) ,(3,2)

So, in inverse values of x and y interchange

So, inverse scatter plot should represent (-2,-4) ,(-1,1) ,(1,2), (2,3)

Attached is the scatter plot inverse

Graph 1 is correct.

3.We have been given a function:

$f(x)=3x$

So, f(x)=y

That is $y=3x$

We will find x from above equation we get

$x=\frac{y}{3}$

Now, interchange x and y

$y=\frac{x}{3}$

$\Rightarrow f(x)=\frac{x}{3}$ is the required inverse

Therefore, option 3rd is correct.

5 0

3 years ago