Answer:
ways.
Step-by-step explanation:
is the number of ways in which
distinct objects are selected from a pile of
distinct objects.
In our question,there are a total of
people.
So,
.
Given that three are selected at random.
So,
.
So,the answer is
ways.
Answer: 43.3 square inches
Step-by-step explanation:
Formula for Triangle: A = bh/2
Key:
* = multiple
/ = divide
Fill in the formula with what you know:
A = bh/2
A = 5 * 4.33 / 2
A= 21.65 / 2 = 10.825 square inches
However, 10.825 is not our answer. 10.825 is the area of only one triangle. Since all four of the triangles are congruent (or the same) we can:
Add: 10.825 + 10.825 + 10.825 + 10.825 = 43.3 square inches
OR
Multiple: 10.825 * 4 = 43.3 square inches
Thus, the surface area of the pyramid is 43.3 square inches.
Answer:
52
Step-by-step explanation:
angle RQS=180-90-34=90-34=56
and then
180-56=x+72
124=x+72
x=52
Step-by-step explanation:
s it will be just know the right
Answer:60hours
Step-by-step explanation:
465/155×4
=60 hours