N = -104 is the correct answer
Answer:
ten point zero twenty two
Step-by-step explanation:
Answer:
84 cm^2
Step-by-step explanation:
The area of a triangle is
A = 1/2 bh where b is the length of the base and h is the height
A = 1/2 ( 5+9) * 12
A = 1/2 (14) * 12
A =84
Step-by-step explanation:
a).
n! is
(n-3)! is
If we divide the two, everything behind (n-3) will just cancel out so we would be left with only
So the answer to a is
b
Permutations formula of P(6,4) is
6!/(6-4)!, or 6!/2!.
Then we divide by 4!
The answer to b is 15
Answer:
Step-by-step explanation:
(x + 2)(x +9)= x*(x +9) + 2*(x +9)
= x*x + x*9 + 2*x + 2*9
= x² +<u> 9x + 2x </u>+ 18 {Combine like terms}
= x² + 11x +18