Answer:
perimeter =

Step-by-step explanation:
perimeter
- = 2 × pi × radius
- = diameter × pie ( 2 × radius )
- = 23 × pi
=

To answer the question we need to know if we replaced or not.
Lets calculate the 2 probabilities.
1, No replacement
first draw is an ace P=4/52
2nd draw is an ace P=3/51
Both are A: P=4/52 * 3/51 = 0,0045
2, With replacement
Both draws P=4/52
Both A: P =(4/52)^2 = 0,0059
So we know that it was with replacement.
This means theat the two events are independent. (both draws have 4/52 chance, not affecting eachother)
Answer:
The total cost for Imani books is $675.
Step-by-step explanation:
Given : Imani brought books for college and paid 35% of the total cost her parents paid the remaining balance of 438.75
To find : What was the total cost for Imani books ?
Solution :
Let x be the total cost of the books.
As she paid 35% of the total cost.
i.e. 
Now, the total cost of the book is given by,
Remaining balance= 65% of total cost
i.e. 




Therefore, the total cost for Imani books is $675.
Squares =50
Triangles=80
Circles=90
Stars=110