Answer:
9^-4
Step-by-step explanation:
9^-6=?*9^-2
Let the unknown=x
9^-6=x*9^-2
9^-6=9^-2(x)
x=1/9^6÷1/9^2
=1/9^6×9^2/1
=9^2/9^6
x=1/9^4
x=9^-4
Check
9^-4*9^-2
=9^-4-2
=9^-6
Answer:
they need $75 to buy 5 tickets
Step-by-step explanation:
Answer:
15 minutes
Step-by-step explanation:
If Betty mow a lawn in 60 minutes that means that she mows in a rate of 1/60
If Melissa mow a lawn in 20 minutes that means that she mows in a rate of 1/20
If they mow a lawn in t minutes that means the rate toguether is 1/t
The, the rate in which they mow a lawn has to be equal to the sum of the rate individually as follows
1/t = 1/60 + 1/20
solving equation for t
1 /t = (1 + 3) /60
1/t = 4/60
1/t = 1/15
t = 15 minutes
Circunference=pi times diameter
diameter=16in
circunfernce=16pi in
that is exact because pi is irrational
if we were to aprox pi to 3.14 hen
16 times 3.14=50.24
so answer is 16pi or 50.24 in
Answer:
24/5 is going to be the next term because you’re multiplying each time by -2
