Answer:
6
Step-by-step explanation:
n ! = n(n - 1)(n - 2)..... × 3 × 2 × 1
Given
(n - 1) ! with n = 4, then
(4 - 1) !
= 3 ! = 3 × 2 × 1 = 6
Answer:
99 degrees
Step-by-step explanation:
81+a=180, so
180-81=99
a=99
Answer: B
Step-by-step explanation: its B
Y – 3x = 7
y -3x +3x = 7+3x
y = 7+3x
21 + 9x = 3y
21 + 9x = 3(7+3x)
21 + 9x = 21 + 9x
The answer is B.There are an infinite number of solutions.
Answer:
56 cm^2
Step-by-step explanation:
Well I gotta explain something so I don’t get reported.
Well first separate into 2 shapes
You got 8*3 and 8*4
Multiply and add those 2 numbers
you’d get 56
