The time duration between 9:30 AM and 12:00 PM is 2.5 hours.
From the graph, we want the diameter, d, to be 1 cm when the time, t, is 2.5 hours.
Graph A yields d = 1.0 when t = 2.5. CORRECT
Graph B yields about d = 0.6 when t = 2.5. INCORRECT
Graph C yields about d = 0.48 when t = 2.5 INCORRECT
Answer: The bacteria is in sample A.
1. Identify the vectors.
2. Write down the cosine formula.
3. Calculate the length of each vector.
4. Calculate the dot product of the two vectors.
5. Plug your results into the formula.
6. Find the angle based on the cosine.
Hope this is what your looking for...
Answer:
Option D is correct
Step-by-step explanation:
-4(3x/2 - 1/2) = -15
<=>
-4*3x/2 + (-4)*(-1/2) = -15
<=>
-6x + 2 = -15
