Answer:
It is -4 :)
Step-by-step explanation:
I just did this lol
Answer:
There seems to be a typo error but still this has solution.
Let the number be = x
A positive real number is 6 less than another. Means the second will be 
The sum of the square of the two numbers is 38.
=> 
=> 
=> 
=> 
Taking out 2 common;
=> 
Solving this quadratic equation, we get;
and 
As positive number is needed, we have
or x = 
x = 0.162277
And other number is 6.162277.
Answer:
Step-by-step explanation:
i think either b or c
Answer:
Rate of change of length of shadow is 
Step-by-step explanation:
Consider the figure
We have



Rate of change of length of shadow is 
7). 2 (n-7) = 34
8). 5x - 18 = 2