The answer is B. 5P5 x 20P15.
This is because to make the second grade students to sit in the first row we have 5 seats and 5 students so we will permute the 5 students to those 5 seats. So 5P5.
Now we are left with 20 seats and 15 first grade students so we can simply permute those 15 students into those 20 seats. So 20P15.
Finally using the counting rule principle we will multiply both of these so 5P5 x 20P15.
Answer:
C.
Step-by-step explanation:
The product of two irrational numbers is SOMETIMES irrational. The product of two irrational numbers, in some cases, will be irrational. However, it is possible that some irrational numbers may multiply to form a rational product.
Answer:
Okay, here is the graph
Step-by-step explanation:
Direction: Opens down
Vertex: (-2, 7)
Focus: (-2, 55/8)
Axis of Semmetry: x = -2
Directrix: y = 57/8
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It seem like there are information missing on the question posted. Let me answer this question with all I know. So here is what I believe the answer is, square.
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.