Answer:
The correct answer is 0.94147
Step-by-step explanation:
Let A denote the event that the podiatrist finds the first person with an ingrown toenail.
And (1 - A) denote the event that the podiatrist does not find the ingrown toenail.
While examining seven people, the podiatrist can find the very first person to have an ingrown toenail. Similarly he can find the second patient to have the ingrown toenail. Going in this way the probability of the first person to have an ingrown toenail is given by:
= A + (1 - A) × A + (1 - A) × (1 - A) × A + (1 - A) × (1 - A) × (1 - A) × A + (1 - A) × (1 - A) × (1 - A) × (1 - A) × A + (1 - A) × (1 - A) × (1 - A) × (1 - A) × (1 - A) × A + (1 - A) × (1 - A) × (1 - A) × (1 - A) × (1 - A) × (1 - A) × A.
= 
= 
= 0.94147
We can also solve the above expression by using the geometric progression formula as well where common ratio is given by
.
2/25 will be the simplest form
Answer:

Step-by-step explanation:
Simplify the following expression:

-Subtract
from
:


-Add
and
:


Therefore, the final answer is
.
Answer:
25π cm^2 ≈ 78.5 cm^2
Step-by-step explanation:
The base is a circle with a radius of 5 cm. Its area is given by ...
A = πr^2
A = π(5 cm)^2 = 25π cm^2 ≈ 78.5 cm^2