-17x - 9=8 -17x = 17 X=-1
6(-1)-5 -6-5=-11
Step-by-step explanation:
Let E be the event of drawing a disc from the box of discs numbered from 1 to 90
Two digit numbers from 1 to 90=10,11,12,.....,90
No. of favorable outcomes=81
Total no. of possible outcomes =90
We know that, Probability P(E) =(Total no.of possible outcomes)(No.of favorable outcomes)=9081=109
Therefore, the probability of a two digit numbered disc from the box of discs numbered from 1 to 90=109
hope it helps !
Answer:
(B)2
Step-by-step explanation:
Given the ordered pairs

The first value in the pair represents the x-value and the second value represents f(x).
In the pair (2,4)
x=2
f(x)=4
Therefore: f(2)=4.
The value of x when f(x)=4 is 2.
Answer: Hello!
the cross product between sets is defined as:
if A = {a,b,c} and B = {1,2,3)
then
![AxB = \left[\begin{array}{ccc}a\\b\\c\end{array}\right]x\left[\begin{array}{ccc}1&2&3\end{array}\right] =\left[\begin{array}{ccc}a1&a2&a3\\b1&b2&b3\\b1&b2&b3\end{array}\right]](https://tex.z-dn.net/?f=AxB%20%3D%20%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Da%5C%5Cb%5C%5Cc%5Cend%7Barray%7D%5Cright%5Dx%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%262%263%5Cend%7Barray%7D%5Cright%5D%20%20%20%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Da1%26a2%26a3%5C%5Cb1%26b2%26b3%5C%5Cb1%26b2%26b3%5Cend%7Barray%7D%5Cright%5D)
where the A took the place of the columns, and B for the files.
then if our sets are A = {a,b} and B = {a,b,c)
a) AxB
![AxB = \left[\begin{array}{ccc}aa&ab&ac\\ba&bb&bc\end{array}\right]](https://tex.z-dn.net/?f=AxB%20%3D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Daa%26ab%26ac%5C%5Cba%26bb%26bc%5Cend%7Barray%7D%5Cright%5D)
b) BxA
![BxA = \left[\begin{array}{ccc}aa&ab\\ba&bb\\ca&cb\end{array}\right]](https://tex.z-dn.net/?f=BxA%20%3D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Daa%26ab%5C%5Cba%26bb%5C%5Cca%26cb%5Cend%7Barray%7D%5Cright%5D)
c) AxA
![AxA = \left[\begin{array}{ccc}aa&ab\\ba&bb\end{array}\right]](https://tex.z-dn.net/?f=AxA%20%3D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Daa%26ab%5C%5Cba%26bb%5Cend%7Barray%7D%5Cright%5D)
d) BxB
![BxB = \left[\begin{array}{ccc}aa&ab&ac\\ba&bb&bc\\ca&cb&cc\end{array}\right]](https://tex.z-dn.net/?f=BxB%20%3D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Daa%26ab%26ac%5C%5Cba%26bb%26bc%5C%5Cca%26cb%26cc%5Cend%7Barray%7D%5Cright%5D)
Hope it helps, i know that is kinda hard work with this kind of operations, i tried to make a kinda of map in the first part so you can replace the values of A and B and do the multiplications by yourself, if you have troubles don't doubt of asking.
Answer:
108sqft
Step-by-step explanation:
Scale 1in=3ft
3in=9ft and 4in=12ft
9ft*12ft=108sqft