4 years ago

In how many ways can 2 singers be selected from 4 who came for an audition?

1 answer:

Triss [41]4 years ago

7 0

$\displaystyle \binom{4}{2}=\dfrac{4!}{2!2!}=\dfrac{3\cdot4}{2}=6$

You might be interested in

lord [1]

Answer : C (24 - 6) ÷ 3

(almost 100% sure this is correct lol)

8 0

3 years ago

julsineya [31]

Answer:

Triangular prisms

Remember the formula for calculating volume is: Volume = Area by height. V = A X h.

For a triangle the area is calculated using the formula: Area = half of base by altitude. A = 0.5 X b X a.

So to calculate the volume of a triangular prism, the formula is: V = 0.5 X b X a X h

Step-by-step explanation:

4 0

2 years ago

REY [17]

Answer:

You need to choose B as your answer

5 0

3 years ago

Marina CMI [18]

The common factors for 20 is 1,5
25 is 1,5
40 is 1,5
GCF:5

3 0

3 years ago

Zigmanuir [339]

Answer:

Step-by-step explanation:

given 3xy + 4yz + 8xz = 10

subtract 8xz from both sides leaving the terms in y together

3xy + 4yz = 10 - 8xz

take out the common factor y on the left side

y(3x + 4z) = 10 - 8xz

divide both sides by (3x + 4z)

y = $\frac{10-8xz}{3x+4z}$ → A

5 0

3 years ago