Let U =(1,2,4,5,a, b,c, d,e) Find the complement of the set R=(1,2,5b, d) A.(4,a, b,c, e)
B. (3,4,a, c,e)
C. (3,4,a, b,c, e)
D. (4,a, c,e)

the answer

b. they are parallel and will never intersect.

show us the graphs dude

step-by-step explanation:

a is the right answer

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places