Given: m is the midpoint of ln; lm =8 prove: ln=16

I hope this helps

Step-by-step explanation:

M is the midpoint of LN                                         Given

LM≅LN                                                      Definition of Midpoint

LM=8                                                                       Given

MN=8                                                                  Substitution

LM+MN=LN                                          Segment Addition Postulate

8+8=LN                                                               Subsitution

LN=16                                                                     Addition

b

step-by-step explanation:

u take $75 minus $60.the anwer/original($75)multiply by 100

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