Answer:
B 2 2/3
Step-by-step explanation:
Triangles ADB and CDB are similar. Therefore similar parts can form a proportion.
AD/DB = DB/DC
AD = ?
DB = 4
DC = 6
x/4 = 4/6 Cross multiply
6x = 16
6x/6 = 16/6
x = 2 4/6 or x = 2 2/3
It's B
Answer:
3rd answer f(x) = 3(x-8)(x+2)
Step-by-step explanation:
The x-intercepts are the points at which the parabola intersects the x-axis.
Function y = a(x - r₁)(x - r₂) is in factored form, where r₁ and r₂ are x-intercepts so if r₁ = 8 and r₂ = -2 then
y = a (x-8)(x-(-2))=a(x-8)(x+2)
For y intercept plug in (0,-48) in equation and calculate a:
-48 = a (0-8)(0+2)
-48 = a(-8)(+2)
-48 = -16a divide by -16
a = 3
Function is y = 3(x-8)(x+2)
Answer:
A, C, D
Step-by-step explanation:
This is because the ratio between te consecutive terms are constant, that is ×2, ×0.5 and ×3 respectively
The range is [4,∞)
Or from 4 to positive infinity
Or y is greater than or equal to 4
The total volume of the glass is 100cm3 = 100ml
Explain: the glass is divided in 4 parts, the glass is 3/4 when 75 cm3 of orange is poured in. To find 1 part, calculate 75/3=25 (cm3). So the total volume is 4 parts, then 25*4=100 (cm3)