Answer:
√7x−49√x
Explanation:
First of all, expand by multiplying √7x⋅√x and √7x⋅7√7respectively:
√7x(√x−7√7)=√7x⋅√x−√7x⋅7√7
... you can express √7x as √7⋅√x...
=√7⋅√x⋅√x−√7⋅√x⋅7⋅√7
=√7⋅(√x)2−(√7)2⋅√x⋅7
... the operations squaring and taking the square root "eliminate each other"...
=√7⋅x−7⋅√x⋅7
=√7x−49√x
Hope that this helped!
I have the best ans and that is
Answer/Step-by-step explanation:
Recall: 
a. 
b. 
c. 
Answer:
The number is 9.5
Step-by-step explanation:
Look at the picture above, it explains everything
Answer:
Step-by-step explanation:
A+B+C+D=360
A=180 as it half of the circle
B+C+D=180
60+C+90=180
150+C=180
C=180-150=30
The fraction of the circle to region C
30/180=1/6
