Step-by-step explanation:
y = -3x² + 12x - 33
y = -3[x² - 4x + 11]
y = -3[(x - 2)² + 7]
Since the coefficient of x² is negative, the curve concaves downwards and has an absolute maximum value. This happens when x = 2, y = -21.
Therefore the correct option is A.
Answer:
Step-by-step explanation:
Area=πr²
area= π(12)²
area=452.4cm²
D - 10 - 2d + 7 = 8 - 10 - 3d
- d - 3 = - 2 - 3d
2d - 3 = - 2
2d = 1
d = 1/2
Hope this helps.
Answer:
50
Step-by-step explanation:
In a right angled triangle :
Ratio of the leg Adjacent an angle to the hypotenus can be obtained using the Cosine trigonometric ratio
For an angle of 23° and and adjacent leg of 46
Cos 23 = adjacent / hypotenus
Adjacent / hypotenus = 0.92
46 / hypotenus = 0.92
Hypotenus = 46 / 0.92
Hypotenus = 50
Answer:
A. Consistent and dependent