4x-12+12=28+12=40
40/4=10
x=10
Answer:

Step-by-step explanation:
From the question we are told that
The vector given is

Also 
Generally

Here
is the magnitude of a which is mathematically represented as

=> 
b is vector which we will assume to have the following parameters

So

=> 
=> 
Hence the vector be can be mathematically represented as

This means that the vector b is more than one value since it is made up of variable
This means that if

Then

The answer is c. v=2.4r+154. v is the dependent variable, and r is the independent variable. From the equation above, if we increase r by 1 unit, v will increase by 2.4 (154 doesn't affect because it's always a constant). The unit of r is %, while the unit of v is thousand, therefore if we increase interest rate by 1%, the median house value increases by 2.4 thousand.
Answer:
27 FEET TALL
Step-by-step explanation:
If a 6 foot fence casts a 10 foot shadow then you need to find the ratio 6/10. (This is my method) Now you are trying to find the numerator for X/45.. you need to find what number equals .6 you can use Symbolab as a calculator I typed 6/10 = X/45 and I got 27.