Nickie

Most popular questions and responses by Nickie
  1. Statistics

    A population has a mean of   30 and a standard deviation of   5. a. If 5 points were added to every score in the population, what would be the new values for the mean and standard deviation? b. If every score in the population were multiplied by 3 what

    asked on January 26, 2013
  2. Algebra II

    Solve the logarithmic equation. Round to the nearest ten-thousandth if necessary. log 8x^3=4 Can someone walk me through this?

    asked on December 13, 2017
  3. Algebra II

    leiana_chung Write (8a^-3)^-2/3 in simplest form. So far I have this. = (8^-2/3)(a^3(-2/3)) =(8^-2/3)(a^2) =((2^3)^-2/3)(a^2) =(2^-2)(a^2) And this is where I am stuck, can someone explain how to do the rest of the steps?

    asked on January 14, 2018
  4. Algebra II

    Solve In(5x+7) = 8. Round to the nearest thousandth. Can someone walk me through this?

    asked on December 13, 2017
  5. Algebra II

    Subtract (2)/(4+sqrt6) - (2)/(4-sqrt6). Can someone explain how to do this to me?

    asked on January 25, 2018
  6. Algebra II

    Write the equation in logarithmic form. n^4/3=m Can someone explain how to do this?

    asked on December 15, 2017
  7. statistic

    A multiple-choice test has 48 questions, each with four response choices. If a student is simply guessing at the answers, a. What is the probability of guessing correctly for any question? b. On average, how many questions would a student get correct for

    asked on January 27, 2013
  8. Algebra II

    Use natural logarithms to solve the equation.Round to the nearest thousandth. 5e^2x+11=30 Can someone explain it to me? So far, I got. e^2x+11=6 2x+11=In 6

    asked on December 13, 2017
  9. statistic

    A roulette wheel has alternating red and black numbered slots into one of which the ball finally stops to determine the winner. If a gambler always bets on black to win, what is the probability of winning at least 24 times in a series of 36 spins? (Note

    asked on January 27, 2013
  10. STAT

    Do you view a chocolate bar as delicious or as fattening? Your attitude may depend on your gender. In a study of American college students, Rozin, Bauer, and Catanese (2003) examined the importance of food as a source of pleasure versus concerns about food

    asked on February 10, 2013
  11. statistic

    Over the past 10 years, the local school district has measured physical fitness for all high school freshmen. During that time, the average score on a treadmill endurance task has been μ  19.8 minutes with a standard deviation of   7.2 minutes.

    asked on January 27, 2013
  12. stat.

    A sample consists of the following n  6 scores: 2, 7, 4, 6, 4, and 7. a. Compute the mean and standard deviation for the sample. b. Find the z-score for each score in the sample. c. Transform the original sample into a new sample with a mean of M  50 and

    asked on January 27, 2013
  13. statistic

    In a population of exam scores, a score of X  48 corresponds to z1.00 and a score of X  36 corresponds to z  –0.50. Find the mean and standard deviation for the population. (Hint: Sketch the distribution and locate the two scores on your sketch.) A

    asked on January 26, 2013
  14. Stat.

    A trick coin has been weighted so that heads occurs with a probability of p  2 3, and p(tails)  1 3. If you toss this coin 72 times, a. How many heads would you expect to get on average? b. What is the probability of getting more than 50 heads? c.

    asked on January 27, 2013
  15. Math

    If the ratio of girls to boys on the swim team is 2:3, which of these shows the possible number of girls to boys: A. 20 girls, 35 boys B. 24 girls, 36 boys

    asked on September 22, 2010
  16. Algebra II

    What is the solution of the equation? 1+sqrt(3x+3) = sqrt(7x+2)

    asked on January 25, 2018
  17. Stat.

    A national health organization predicts that 20% of American adults will get the flu this season. If a sample of 100 adults is selected from the population, a. What is the probability that at least 25 of the people will be diagnosed with the flu? (Be

    asked on January 27, 2013
  18. Math

    Jorge's current hourly wage for working at Denti Smiles is $12.00. Jorge was told that at the beginning of next moth, his new hourly wage will be an increase of 6% of his current hourly wage. What will be Jorge's new hourly wage? If someone could explain

    asked on February 26, 2018
  19. Calculus

    Find the area of the shaded region given two points and the function y=cosx. Here's a figure (page 4 figure 7) math.upenn.edu/~deturck/m103/rogawski/chap6odd.pdf

    asked on May 2, 2011
  20. Chemistry

    Aldol condensation of formic acid will create?

    asked on July 2, 2017
  21. STAT

    Numerous studies have found that males report higher self-esteem than females, especially for adolescents (Kling, Hyde, Showers, & Buswell, 1999). Typical results show a mean self-esteem score of M  39.0 with SS  60.2 for a sample of n  10 male

    asked on February 10, 2013
  22. statistic

    1. A distribution has a standard deviation of   12. Find the z-score for each of the following locations in the distribution. a. Above the mean by 3 points. b. Above the mean by 12 points. c. Below the mean by 24 points. d. Below the mean by 18 points.

    asked on January 26, 2013
  23. STAT

    Functional foods are those containing nutritional supplements in addition to natural nutrients. Examples include orange juice with calcium and eggs with omega-3. Kolodinsky, et al. (2008) examined attitudes toward functional foods for college students. For

    asked on February 10, 2013
  24. math

    Write the equation for the following situation: In one U.S. town, the annual consumption, s, of sugar (in kg per person) can be estimated by adding 30 to half the years, t, since 1975. Then graph the equation and use the graph to determine the sugar

    asked on May 26, 2011
  25. ~*~Algebra!*~

    How do you use possible symmetry to determine whether the graph is the graph of an even function, an odd function, of a function that is neither even or odd?

    asked on September 1, 2007
  26. social studies

    i need help with my math test

    asked on April 3, 2009
  1. Algebra II

    Ok, so I tried to work it out myself. I think I have to rationalize the denominator for each fraction and then subtract those two answers.

    posted on January 25, 2018
  2. Algebra II

    I think the next step is this =(1/2^2)(a^2) =(1/4)(a^2) But I do need help with this now.

    posted on January 14, 2018
  3. Algebra II

    Thank you, but it's an equation dealing with natural logarithms.

    posted on December 13, 2017
  4. Algebra II

    Thank you, but can you tell me what happened to the 8? Did you divide it by 10000?

    posted on December 13, 2017
  5. Statistics

    A distribution has a standard deviation of   12. Find the z-score for each of the following locations in the distribution. a. Above the mean by 3 points. b. Above the mean by 12 points. c. Below the mean by 24 points. d. Below the mean by 18 points. For

    posted on January 26, 2013