A car increases, then decreases, its speed. Which table could represent the speed of the car? time(min) 5 6 7 8 9
speed(mph) 45 43 41 42 43

time(min) 5 6 7 8 9
speed(mph) 45 47 49 48 47

time(min) 5 6 7 8 9
speed(mph) 45 45 45 43 41

time(min) 5 6 7 8 9
speed(mph) 45 43 41 41 41

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752

look at the picture i have filled out a table for it. hope this .

b

step-by-step explanation:

55 degrees because 55+55=110 degrees