Answer:
graph -2x-2 as a solid line then shade the graph in above that line.
Step-by-step explanation:
Answer:
<h2>See the explanation.</h2>
Step-by-step explanation:
(a)
7 persons will show up for sure, hence there is not any kind of probability here.
The other 5 persons have 50% chance to show up.
The flight will be overbooked, if either 4 will come or 5 will come.
From the total 5 persons, 4 can be chosen in
ways.
The probability that any four among the 5 will come is
.
The probability that all of the 5 passengers will come is
.
Hence, the required probability is
.
(b)
The probability that there will be exactly 10 passengers on the flight is
.
The probability that there will be no empty seats in the plane is
.
Hence, probability of having empty seats is
.
Answer:
Step-by-step explanation:
This is an Arithmetic Series with common difference 4 and first term 3
so the nth term an = 3 + (n -1)4
= 4n - 1.
The sum of n terms
= n/2 (a1 + L)
= n/2(3 + 1671)
= 837n.
There are (1671-3) / 4 + 1 = 418 terms in the series,
so the total value of the series is 837*418
= 349,866.
.
Answer:
The walk will cost $8164.
Step-by-step explanation:
Given:
Diameter of the circular pond (D) = 24 yd
Width of the gravel path (x) = 2 yd
Cost per yard of the path = $50
Now, radius of the circular pond is half of the diameter and is given as:

Now, area of the pond is given as:

Area of the complete path including the pond area is given as:

Now, area of the gravel path can be obtained by subtracting the pond area from the total outer area. This gives,

Now, using unitary method,
Cost of 1 square yard of path = $50
∴ Cost of 163.28 square yard of path = 50 × 163.28 = $8164
Hence, the walk will cost $8164.
So the answer for number 3 is p because p is the only one right on top of 4
But I dont know the answer for number 4 but I think its 2 I might be way off but its my guess.
Hope number 3 helps