Answer:
d. 20
Step-by-step explanation:
The given question implies 5 permutation 2, i.e 
.
But,
= 
So that for , n = 5 and r = 2.
= 
= 
= 
Cancel out 3 and 2 with respect to the numerator and denominator.
= 5 * 4
= 20
Therefore,
= 20
So that the correct option is D.
Answer:
x = -2
Step-by-step explanation:
- 3 x - 6x = -18x
- 4 - 18x + 9 = 41
9 - 4 = 5
- 18x + 5 = 41
- 18x = 41 - 5
- 18x = 36
36 divided by -18 is -2
Answer:
Step-by-step explanation:
Given expression is,
By using the law of logarithm,
By comparing exponents on both the sides of the equation,
Therefore, will be the answer.
Answer:
18
Step-by-step explanation:
Sum of x, y and z = 20 × 3
= 60
x-5+y+4+z-5 = 60-5+4-5
= 54
Mean of x-5, y+4 and z-5
= 54 ÷ 3
= 18
Answer:
Multiply 7/6 by 3/3
Step-by-step explanation:
Multiplying 7/6 by 3/3 will give you a result of 21/18.
Hope this helps!
