Answer:
0.0175 or 1.75%
Step-by-step explanation:
The probability of the two events happen at once is equal to the product of the individual probabilities, so:
the probability is 1.75%
Answer:
Solutions are real and distinct
b = -1/2, -3/2
Step-by-step explanation:
4b² + 8b + 7 = 4
4b² + 8b + 3 = 0
B²-4AC = 8² - 4(4)(3) = 16 > 0
So, the solutions are real and distinct
4b² + 8b + 3 = 0
4b² + 6b + 2b + 3 = 0
2b(2b + 3) + 1(2b + 3) = 0
(2b + 3)(2b + 1) = 0
2b + 3 = 0 b = -3/2
2b + 1 = 0 b = -1/2
It should be 130 as from day one to day two and to day three it goes up by 10 so 12*10+10
Answer:
-11, -17
Step-by-step explanation:
Since we are told it is an arithmetic sequence, we find the common difference. To find the common difference, subtract a term from the next term.
1 - 7 = -6
The common difference is -6.
1st term: 7 (We knew this.)
2nd term: 7 + (-6) = 1 (We knew this.)
3rd term: 1 + (-6) = -5 (We knew this.)
4th term: -5 + (-6) = -11
5th term: -11 + (-6) = -17
Answer: -11, -17