Answer:
XZ = 44
KQ = 24
Step-by-step explanation:
XH is half of XZ, and XH is 22x so two times 22x will give you XZ.
XH times two equation - 2(22x)
XZ equation - 43x + 1
Set them equal
2(22x) = 43x + 1
44x = 43x + 1
x = 1
Put x in equation XZ
43(1) + 1 = 44
Answer:
C
Step-by-step explanation:
Domain:
g(x) ≠ 0
All real numbers ≠ 6/5
Step-by-step explanation:
y+6y-2= -12
7y-2 = -12-2
7y. = -14
7y/7y = -14/7y
y = -2
-5x+-3x
-8x-2-2= -12
-8x -4= -12-4
-8x = -16
-8x/-8x = -16/-8x
x = -2
10000 different phone numbers are possible for a particular prefix if repetion of digits is allowed
5040 different phone numbers are possible for a particular prefix if repetion of digits is not allowed
<em><u>Solution:</u></em>
Given that,
A seven digit phone number consists of a three-digit prefix followed by four digits
We have to find the different phone numbers are possible for a particular prefix
For a paricualr prefix, there are four digits
Total numbers from 0 to 9 are 10
Therefore,
Different ways for phone number for particular prefix:
If repetition is allowed:
Different ways = 10 x 10 x 10 x 10 = 10000 ways
If repetition is not allowed then:
Different ways = 10 x 9 x 8 x 7 = 5040 ways
