Answer:
The correct option is D. 2/7
Step-by-step explanation:
Consider the provided information.
There are 8 volunteers including Andrew and Karen, 4 people are to be selected at random to organize a charity event.
We need to determine the probability Andrew will be among the 4 volunteers selected and Karen will not.
We want to select Andrew and 3 others but not Karen in the group.
Thus, the number of ways to select 3 member out of 8-2=6
(We subtract 2 from 8 because Andrew is already selected and we don't want Karen to be selected, so subtract 2 from 8.)
The required probability is:
Hence, the correct option is D. 2/7
Answer:
10
Step-by-step explanation:
Answer:
- 1 inch : 250 miles
- 1/15,840,000
Step-by-step explanation:
Map scale factors are usually written a couple of different ways. One of them is the number of miles represented by 1 inch. Here, that is ...
1750 mi/(7 in) = 250 mi/in
Written that way, the scale factor is 1 in : 250 miles.
__
The other way the scale factor can be written is as a unitless ratio. That ratio is ...
The map scale factor is 1 in : 250 miles, or 1/15,840,000.
Answer:
The first one
Step-by-step explanation:
g(x) = ax² + bx + c
Point (0,0):
0 = a.0² + b.0 + c
c = 0
Point (2,1):
1 = a.2² + b.2 + c
4a + 2b + c = 1
But c = 0. Then:
4a + 2b = 1
Another point: (- 2, 1):
1 = a.(- 2)² + b.(- 2) + c
4a - 2b = 1
{4a + 2b = 1
{4a - 2b = 1
4a + 2b = 4a - 2b
4a - 4a = - 2b - 2b
- 4b = 0
b = 0
4a + 2b = 1
4a + 2.0 = 1
4a = 1
a = 1/4
The formula is:
g(x) = (1/4)x²
I hope I've helped you.
1 day = 0.06 m
x = 0.96 m
0.96 ÷ 0.06 = 16 days
