Answer:
x≥-3
Step-by-step explanation:
-4x-10≤2
-4x≤2+10
-4x≤12
x≥12÷-4 (The sign flips around when you divide by a negative number.)
x≥-3
Answer: -ln |cos x| - ln |sin x| + C
<u>Step-by-step explanation:</u>

Answer:
400 seconds
Step-by-step explanation:
To find the distance, you have to multiply. Since each second=20 meters, you have to multiply 20 x 20 because there are 20 seconds.
First flip
We know the probability of head is 2/7
Since only 2 things can happen, and both cannot happen at once (mutually exclusive), we write
P(tail) = 1 - P(head) = 1 - 2/7 = 5/7
The probability of tail is 1 minus probability of head.
Second flip
You're still using the sam coin, and whatever you got on the first flip doesn't affect your chances of getting head... on the second flip, I mean. So,
2/7; 5/7; 2/7; 5/7
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