Answer:
See explanation
Step-by-step explanation:
Vertex: -b/2a = 8/4 = 2. Plug 2 back into the equation to get (2, -2)
y-intercept: plug 0 for all the x values to get 6. The y intercept is (0,6)
x intercept: factor the equation:
2(x^2 - 4x + 3)
2(x-3)(x-1) <— by splitting the middle variable
so the x intercepts are (x-3) and (x-1) or 3 and 1.
Axis of symmetry : 2 (the x value of the vertex)
Domain: ARN ( all real numbers)
Range: ARN except y cannot be less than -2.
To graph you simply just plug in x values in a table and get the y values. Then plot them on the graph and draw a smooth curve.
Answer:
20,000 particles
Step-by-step explanation:
Here we are given that the amount if radioactive particles has come down to 40,000 from 80,000 in 80 years . Hence by the definition of Half Life,the half life of the item is 80 years.
Now we are asked to guess the number of radioactive particles after 80 years. As we already know that , the half life of material is 80 years , the number of radioactive particles will be reduced to its half in 80 years. Hence the number of radioactive particles after 80 years is 20,000
Answer:
The number is 623.
Step-by-step explanation:
Answer:
3.5y
Step-by-step explanation:
Answer:
Step-by-step explanation:
