A. Identify the mistake.
B. Find the real answer.

A. m<AFD and m<BFC does not equal 180. They are Vertical Angles which means they equal each other.

To find what m<AFB, you didnt plug in x from the top equation.

B. x = 24

m < AFB = 108

Step-by-step explanation:

The measurement of AFD + measurement of BFD does not equal 180 degrees.  Those angles are equal to each other since they are vertical angles.  Instead of adding them and setting it to 180, set the two angle equal to each other so AFD=BFD

Step-by-step explanation:

3x+3=2x+27

x=24

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: