This table represents a quadratic function. Х
у
1
3
3
-3
5
-5
7
-3
9
3
Which statement about this function is true?
A.
The value of a is positive, so the vertex is a maximum.
B.
The value of a is positive, so the vertex is a minimum.
C.
The value of a is negative, so the vertex is a maximum.
D.
The value of a is negative, so the vertex is a minimum.

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

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

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

b i think

step-by-step explanation:

not really sure