Step-by-step explanation:
Circumference of Circle =

given d = 19.4mi
r = 1/2d
= 1/2 x 19.4
= 9.7mi
Circumference of Circle =

Answer:
x=0
Step-by-step explanation:
all falls or passes through the x eventually
Step-by-step explanation:
6+ 7•log2 x = 21
7.log2 x = 21-6
7. log2 x = 15
log2 x = 15/7
x = 2^(15/7)
x = 4.416 = 4.42
Answer:

Step-by-step explanation:
Let do algebra and figure out the value of x:

<u>Note:</u> assuming that the problem is 
Answer:
D.
Step-by-step explanation:
3-6-3-6×7=-48
3-7*(-3)-6=6
(3-7)×(-3)-6=6
(3-7)(-3-6)=36