Nickie
Most popular questions and responses by Nickie
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 
Algebra II
Solve the logarithmic equation. Round to the nearest tenthousandth if necessary. log 8x^3=4 Can someone walk me through this?
asked on December 13, 2017 
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 
Algebra II
Solve In(5x+7) = 8. Round to the nearest thousandth. Can someone walk me through this?
asked on December 13, 2017 
Algebra II
Subtract (2)/(4+sqrt6)  (2)/(4sqrt6). Can someone explain how to do this to me?
asked on January 25, 2018 
Algebra II
Write the equation in logarithmic form. n^4/3=m Can someone explain how to do this?
asked on December 15, 2017 
statistic
A multiplechoice 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 
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 
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 
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 
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 
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 zscore 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 
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 
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 
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 
Algebra II
What is the solution of the equation? 1+sqrt(3x+3) = sqrt(7x+2)
asked on January 25, 2018 
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 
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 
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 
Chemistry
Aldol condensation of formic acid will create?
asked on July 2, 2017 
STAT
Numerous studies have found that males report higher selfesteem than females, especially for adolescents (Kling, Hyde, Showers, & Buswell, 1999). Typical results show a mean selfesteem score of M 39.0 with SS 60.2 for a sample of n 10 male
asked on February 10, 2013 
statistic
1. A distribution has a standard deviation of 12. Find the zscore 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 
STAT
Functional foods are those containing nutritional supplements in addition to natural nutrients. Examples include orange juice with calcium and eggs with omega3. Kolodinsky, et al. (2008) examined attitudes toward functional foods for college students. For
asked on February 10, 2013 
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 
~*~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 
social studies
i need help with my math test
asked on April 3, 2009

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 
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 
Algebra II
Thank you, but it's an equation dealing with natural logarithms.
posted on December 13, 2017 
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 
Statistics
A distribution has a standard deviation of 12. Find the zscore 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