Answer:
13. 20 + (-15) = 5 -- in total he kept 5 pounds
14. -28 + 38 = 10 -- the temperature changed by 10º over 12 hours
15. 100 + (-72) + 48 = 76
Step-by-step explanation:
13. since he gained 20lbs, then lost 15, add -15 to 20 to get 5, the amount of pounds he kept on him
14. the temperature starts at -28º then goes up 38º, so add 38 to -28.
15. the ramp goes up 100, (+100) then down 72, (-72) and then up another 48 (+48) as equation this would be 100 + (-72) + 48
Answer:
65%
Step-by-step explanation:
No, the events "drank coffee" and "drank tea" are not mutually exclusive, as there are 10% of employees drank both coffee and tea.
If there are 50% drank coffee and 10% of them enjoy both, then there are 40% of the employees enjoy only coffee.
Similarly, there are 15% of employees who only enjoy tea.
Then the probability of selecting a person who only enjoy tea or coffee is
40% + 15% = 65%
The easiest way to figure out probability problem with small data sets is to write out your entire sample space then divide by the total:
Sample size = 6 * 6 = 36
S = {[1,1],[1,2],[1,3],[1,4],[1,5],[1,6],[2,1],[2,2],[2,3],[2,4],[2,5],[2,6],[3,1],[3,2],[3,3],[3,4],[3,5],[3,6],[4,1],[4,2],[4,3],[4,4],[4,5],[4,6],[5,1],[5,2],[5,3],[5,4],[5,5],[5,6],[6,1],[6,2],[6,3],[6,4],[6,5],[6,6]}
The only way to make a number combination that's even while 1 die is odd is to have 2 odd numbers.
{[1,1],[1,3],[1,5],[3,1],[3,3],[3,5],[5,1],[5,3],[5,5]}
This gives us 9 results.
The probability of this happening is 9/36 = 1/4 = 0.25
Now if we have to get a 6 with the product being at most 15 we know that the biggest number that 6 can be multiplied by is 2 which gives us 12.
We are left with 4 options:
{[1,6],[2,6],[6,1],[6,2]}
The probability of this happening is 4/36 = 1/9 = 0.1111...
Answer:
First graph
Step-by-step explanation:
First off, the graph opens up because <em>a</em> is positive. Second, the parent function of the quadratic graph is 
and the greater the WHOLE NUMBERS [vertical stretch (<em>a</em>)] get, the slimmer the parabola gets, and the more you increase the DEGREE evenly [anything ending in 0, 2, 4, 6, and\or 8], the more flat, U-shaped the parabola becomes.
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