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Question 696664: Solve for all values of x: (9/x)+(9/x-2)=12
Solve for x: 125^-2x=25^x+1
Please help me. For the first one I made the bottom equal and started cross multiplying it but then from there got confused cauz I couldn't simplify and my numbers were getting weird. For the second one I don't even know how to do it. We never learned it in class. Thanks in advance!
Click here to see answer by Jolliano(16)   |
Question 696760: In looking at the properties of the Standard Normal Distribution below:
Properties of the Standard Normal Distribution:
• 1. The total area under the normal curve is equal to 1.
• 2. The distribution is mounded and symmetrical; it extends indefinitely in both directions, approaching but never touching the horizontal axis.
• 3. The distribution has a mean of 0 and a standard deviation of 1.
• 4. The mean divides the area in half—0.50 on each side.
• 5. Nearly all the area is between z = −3.00 and z = 3.00.
Which of these properties does not necessarily apply to any normal distribution?
Click here to see answer by jim_thompson5910(35256) |
Question 696707:
A few years ago a total of 2684 thousand people lived in the metropolitan areas of Las Vegas, Nevada, and Sacramento, California. Sacramento had 282 thousand more residents than Las Vegas. What was the population of each metropolitan area?
Click here to see answer by checkley79(3341) |
Question 696826: The stopping distance d of a car after the brakes are applied varies directly as the square of the speed r. If a car travelling 30 mph can stop in 50 ft, how many feet will it take the same car to stop when it is travelling 80 mph?
Click here to see answer by Alan3354(69443)  |
Question 696829: A swimming pool can be filled in 15 hours if water enters through a pipe alone, or in 22 hours if water enters through a hose alone. If water is entering through both the pipe and the hose, how long will it take to fill the pool 2/5 full?
Click here to see answer by Alan3354(69443) |
Question 696848: hello. i have a problem that i do not understand,can you help me. It says:
In Tess'store, four pounds of pears cost $6. In Dorothy's store, 10 pounds of pears are sold for $15. Bubble in 1 if it costs more, 2 if it costs less, and 3 if it is the same to buy pears in Dorothy's store.
Click here to see answer by Alan3354(69443) |
Question 696848: hello. i have a problem that i do not understand,can you help me. It says:
In Tess'store, four pounds of pears cost $6. In Dorothy's store, 10 pounds of pears are sold for $15. Bubble in 1 if it costs more, 2 if it costs less, and 3 if it is the same to buy pears in Dorothy's store.
Click here to see answer by stanbon(75887) |
Question 696850: can you help me with this problem it says:
Michelle has a party and invites 3 friends. Each friend invites 3 other friends. Each of these friends invites 3 more friends. Finally, each of these friends invites 3 more friends. Each quest at the party brings 3 gifts, with 3 bows on each gift. How many bows does Michelle get at the party?
Click here to see answer by josmiceli(19441)  |
Question 696859: What are the implications of BP’s strategy in terms of public perception and how may this impact upon their performance? Critically discuss BP’s ability to strike a balance between its interests and wider needs and expectations in light of the strategic frameworks and models you have encountered.
Click here to see answer by Alan3354(69443) |
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