7v-v=12 subtract v from 7v to get 6v
6v=12 divide 12 by 6 to find variable
v=2
The x coordinate of the vertex will be the average of the two zeros, here -3 and 5, so x=(-3+5)/2 = 1, f(1)=(1+3)(1-5) = -16.
Answer: (1, -16)
Let's do it some other ways. How about completing the square to turn f in to vertex form?
f(x) = (x+3)(x-5) = x² - 2x - 15 = (x² - 2x + 1) - 1 - 15 = (x-1)² - 16
and now we can read off (1, -16) as the vertex.
The other method is the vertex is x= - b/2a = - (-2)/2(1) = 1.
Three methods, same answer. Good.
Answer:
D) ½
Step-by-step explanation:
∛(x√x) = xᵇ
Cube both sides.
x√x = x³ᵇ
Square both sides.
x² x = x⁶ᵇ
x³ = x⁶ᵇ
Equate the exponents.
3 = 6b
b = ½
Step-by-step explanation:
In the given figure, its a cube with edge 7.7 inches.
Surface area = 6a²
Where ‘a’ denotes the edge
→ 6(7.7)²
→ 6 × 59.29
→ 355.74
Rounding nearest tenth :
→ 355.8