It’s December and you host a Geminids party on the peak night of the meteor shower. The sky is clear and dark, and the meteors’
emanation point is directly overhead. You and your friends watch the sky for 10 minutes. The probability that you see exactly 14 meteors is . The probability that you see more than 20 meteors while watching the night sky for 10 minutes is . Select the appropriate distribution in the tool below to help answer the following questions. (Note: You will need to read the questions first to determine the appropriate distribution.)
1 answer:
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Answer:
12.4 mg
3117.21 mg
1870.32 mg
Step-by-step explanation:
Answer:
x = 4
y = -3
Step-by-step explanation:
We can use substitution, elimination, or graphically.
Step 1: Rearrange first equation
2x + 4y = -4
2x = -4 - 4y
x = -2 - 2y
Step 2: Rewrite systems of equations
x = -2 - 2y
3x + 5y = -3
Step 3: Substitution
3(-2 - 2y) + 5y = -3
-6 - 6y + 5y = -3
-6 - y = -3
-y = 3
y = -3
Step 4: Find <em>x</em> using <em>y</em>
2x + 4(-3) = -4
2x - 12 = -4
2x = 8
x = 4
Graphically:
Use a graphing calc and analyze where the 2 lines intersect.
