Answer:
yes
Step-by-step explanation:
because area of sphere equals =

so if we doubled the radius the surface area will be doubled
Answer:
The value of given expression is
.
Step-by-step explanation:
Given information: n=7, x=2, p=1/2

The given expression is

It can be written as

Substitute n=7, x=2, p=1/2 and q=1/2 in the above formula.






Therefore the value of given expression is
.
Answer:
the angles which occupy the same relative position at each intersection where a straight line crosses two others. If the two lines are parallel, the corresponding angles are equal
Step-by-step explanation:
Just do what i put up there