one kilometer is about 3,280 feet.
about how many kilometers are in
5,280 feet?
1.3 km
a.
0.6 km
b.
0.8 km
d.
1.6 km
laura drove 230 miles in 5 hours.

y=mx+b

step-by-step explanation:

m slope, b y-intercept

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 formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.

okay..i will pick 8!