Answer:
The fourth one
Step-by-step explanation:
I know that is correct
Hello!
The sum of the intern angles of a triangle is 180°. If an angle is obtuse (bigger than 90°), the sum of the others must be less than 90 degrees. Letter a).
Hugs!
Answer:
D
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
here (h, k) = (- 3, - 6), thus
y = a(x + 3)² - 6
To find a substitute (0, 0) into the equation
0 = 9a - 6 ⇒ a = 
= 
y = (x + 3)² - 6 ← in vertex form
Expand (x + 3)² and distribute by
y = (x² + 6x + 9) - 6
= x² + 4x + 6 - 6
= x² + 4x ← in standard form
Answer:
2x + 2y = 4 does not belong
Step-by-step explanation:
2x + y = 4 → <u>y = -2x + 4</u>
y = -2x + 4 → <u>y = -2x + 4</u>
f(x) = -2x + 4 → <u>y = -2x + 4</u>
2x + 2y = 4 → <u>y = -x + 2</u>
Answer:
5
Step-by-step explanation:
12+12+12= 36
36-7= 29
3+3+3=9
29-9=20
20÷4=5
