Answer:
-22.5
Explanation:
Use the average rate of change equation
f(b)-f(a) / b-a
f(b) = f(0) = 3(.25)^0 = 3
f(a) = f(-2) = 3(.25)^-2 = 48
(3-48)/ 0-(-2)
(-45) / 2
-22.5
Answer:
5/8
Step-by-step explanation:
First we need to figure out how many girls and boys there are.
g = girls
b = boys
g = b+8 ( eight more girls than boys)
b = g-8
There are 32 students)
g+b =32
Substitute b = g-8 into the equation
g + (g-8) = 32
Combine like terms.
2g-8 = 32
Add 8 to each side.
2g -8+8 = 32+ 8
2g = 40
Divide by 2
g = 20
There are 20 girls
The experimental probability of picking a girl is
girls/ total
20/32 = 5/8
Answer:
16.7 m/s
Step-by-step explanation:
speed is always in units meters/seconds.
To get this unit, we need to convert the data into the right units.
30 km * 1000m = 30000 m
30 minutes * 60 seconds = 1800 seconds
30000 m / 1800 sec = 16.7 m/s
6239/10,000 or 6239/10^4
Hope I helped.
I don’t know this answer but I think it’s 81
