# Rania

Most popular questions and responses by Rania
1. ## Math Data management

A survey of 1000 television viewers conducted by a local television station produced the following data: •40% watch the news at 12:00 •60% watch the news at 18:00 •50% watch the news at 23:00 •25% watch the news at 12:00 and at 18:00 •20% watch

2. ## PRe calc story problem!!

A radioactive element decays exponentially according to the function Q(t) = Q0ekt .If 100 mg of the element decays to 25 mg in 12 days, find the half-life of the element.

3. ## pre calc

A radioactive element decays exponentially according to the function Q(t) = Q0ekt .If 100 mg of the element decays to 25 mg in 12 days, find the half-life of the element. please help

4. ## statistic

A candidate for public office has claimed that 60% of voters will vote for her. If 5 registered voters were sampled, 1. What is the probability distribution function for this voting? 2. What is the probability that exactly 3 would say they favor this

5. ## Math

Sagal works as a DJ at a local radio station.On occasion, she chooses some of the songs she will play based on the phone-in requests received by the switchboard the previous day. Sagal's list of 200 possible selections includes a)100 songs in the top 100

6. ## Biology

I need an acrostic poem with the word endomembrane.

7. ## calculus

can anyone help me with that question what is the domain of log(log(x)the base is 0.2)

8. ## Math!!!

find the value of k such that when 2x^3 +9x^2+x-15 is divided by x+5, the remainder is 0.

9. ## math

if karla invested 12000\$ in abc bank for annual rate 3.9 for 6 years with compounded monthly intersted a- how much she got as afuture value at the end of the period ? b- find the value of the interest?

1. ## pre calc

NEvermind got it its 6

posted on March 10, 2017
2. ## PRe calc story problem!!

Did not need the attitude bob pursley

posted on March 10, 2017
3. ## Accounting

dbasbdahsbda

posted on November 2, 2014
4. ## math

12.6

posted on October 24, 2014
5. ## calculus

the question was log(log_.2(x)) the base of the first log is 10 then the base of the second log which is inside the brackets is 0.2

posted on October 19, 2014