Use the diagram to derive the law of cosines, Fill in the missing statements in the derivation
B
a
1) a² = h²42
2) h2=
3) 2 = 12 + (6 - 3)2
4) 2 =h²4
5) 2 = 02 - y2 + b2 - 2bx +32
6) 2 = Q² +62
7) x = acosc
8) c2 = + b22abcosc
h
x
b-x
С
A
DONE

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40