Answer:
45
Step-by-step explanation:
The order in which the items are chosen is not important. So we use the combinations formula to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
How many possible subsets of 2 items can be chosen from this lot?
Combinations of 2 from a set of 10. So
Friday - 185
Saturday - 185 x 2
= 370
Sunday - 370 - 50
= 320
<span>The square root of 1296 is 36.</span>
Explanation:
The triangle is right angled.
The formula for area of the triangle:
base = 3
height = 4
substitute the values:
Answer:
10.26 in²
Step-by-step explanation:
The area (A) of the sector is
A = area of circle × fraction of circle
= πr² ×
= π × 2.8² × ≈ 10.26 in²