Answer:
a. 0.25
Step-by-step explanation:
The given expression is

Factor the denominator using difference of two squares.

Cancel out common factors;

We plug in 2 to get


I think the answer is C not to sure
Answer:
can you show the answer choices, please?
Step-by-step explanation:
Answer:
5575 cm³
Step-by-step explanation:
The volume of a sphere is V = (4/3)πr³. If we substitute r = (d/2 where r is the radius and d the diameter), this formula becomes:
πd³
V = (4/3)π·d³/8, or V = -------------
6
and so, if d = 22 cm, the volume is:
π(22 cm)³
V = ------------------- = 5575 cm³
6
Answer:
(- 4, 1 )
Step-by-step explanation:
Under a reflection in the x- axis
a point (x, y ) → (x, - y ), thus
(- 4, - 1 ) → (- 4, 1 )