F(x)= sqrt x-5 find f -1
a.
f ­-1 (x) = (x + 5)2; y > 5

b.
f­-1 (x) = x2 +25; y> 25

c.
f ­-1 (x) = x2 + 5; y > 5

d.
f­-1 (x) = x2 +25; y> 5

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

replication and blocking

step-by-step explanation:

∡ eia and ∡ kij are congruent

step-by-step explanation: