Answer:n=4
m=6
Step-by-step explanation:
(solve for bracket first the add)
4+2×6
4+12
16
A ) S n = ( n - 2 ) · 180°
b ) The measure of each angle:
α = ( n -2 ) · 180° / n
c ) Sum of all exterior angles: 360°
d ) The measure of each exterior angle:
α 1 = 360° / n
e ) ( n - 2 ) · 180° / n + 360° / n =
= ( 180° n - 360° + 360° ) / n = 180° n / n = 180°
It makes sense because:
α (interior angle)+ α 1 ( exterior angle ) = 180°
Answer:
1. x^4 -x^3 -4x^2 -3
a1 = -7.4
an = an-1 -13.8 (choice 1)
Step-by-step explanation:
f(x) = x^4 -x^2 +9
g(x) = x^3 +3x^2 +12
We are subtracting
f(x) -g(x) =x^4 -x^2 +9 - ( x^3 +3x^2 +12)
Distribute the minus sign
x^4 -x^2 +9 - x^3 -3x^2 -12
I like to line them up vertically
x^4 -x^2 +9
- x^3 -3x^2 -12
-------------------------
x^4 -x^3 -4x^2 -3
2. a1 = -7.4
To find the common difference, take term 2 and subtract term 1
-21.2 - (-7.4)
-21.2 + 7.4
-13.8
an = an-1 -13.8
Answer:
9x² - 25 = (3x - 5)(3x + 5)
Step-by-step explanation:
(a + b)(a - b) = a² - ab + ab - b² = a² - b²
a² - b² = (a + b)(a - b)
Rolling an odd number: compound
Rolling a number less than 2: simple
Rolling a number greater than 3: compound
Rolling a 5: simple
Rolling a number divisible by 2: compound
A compound event is one that can happen in more than one way; a simple vent is one that can only happen one way.
To roll an odd number, we can roll a 1, 3, or 5; this is compound.
To roll a number less than 2, we can roll a 1; this is simple
To roll a number greater than 3, we can roll a 4, 5, or 6; this is compound.
To roll a 5, we can only roll a 5; this is simple.
To roll a number divisible by 2, we can roll 2, 4 or 6; this is compound.
