Answer: 0.75. It's pretty obvious.
Answer:
a=8
Step-by-step explanation:
2a+8=16
-8 on both sides
2a=8
/2 on both sides
a=4
Answer:
0.1071
Step-by-step explanation:
Given
Total number of students=8
Boys=2
Girls=6
When we are picking a group from population we use combinations to calculate sample space and for event
So if a group of 5 has to be picked from 8 students
ⁿC_k= n!/(k!)(n-k)!
C_(n,k)= n!/(k!)(n-k)!
Here n=8 and k=5
C_8,5= 8!/(5!)(8-5)!
This will give us:
C_8,5=56
And if we have to pick only girls:
C_6,5= 6!/(5!)(6-5)!
=6
The probability of picking all girls:
=6/56
=0.1071
The dependent variable is f(b)...total charge
the independent variable is b...number of flower bundles
f(b) = 7.95b + 10
for 9 flower bunches..
f(9) = 7.95(9) + 10
f(9) = 71.55 + 10
f(9) = 81.55 <== the total charge
===================
the dependent variable is f(d)....what craig owes
the independent variable is d...number of DVD's
f(d) = 23.25d
for 4 DVD's...
f(4) = 23.25(4)
f(4) = 93 <== what he owes
