Answer:
B : y=5/6cos(pi/30x)+9
Step-by-step explanation:
Edge 2020
We simply replace a with -9
k(-9) = 4 * -9 - 4
k(-9) = -40
:)
Answer with explanation:
The given mathematical expression to solve : 
The prime factorization of each term can be written as follows :-


We can see that the greatest common factor of both the terms = 
So we rewrite the given expression as :-

By using distributive property :-
, we have

Answer:
x = 98
Step-by-step explanation:
The sum of the interior angles in a polygon is
sum = 180° (n - 2) ← n is the number of sides
here n = 7, thus
sum = 180° × 5 = 900°
Sum the interior angles and equate to 900
x + 146 + 122 + 142 + 140 + 110 + 142 = 900, that is
x + 802 = 900 ( subtract 802 from both sides )
x = 98
missing letter is 2
missing letter is 3
missing letter is 1
Hope it is helpful to you ☺️