Friday

April 29, 2016
Total # Posts: 31

**science**

Charcoal from an ancient campfire has a ratio of 14C to 12C that is one- fourth that of new wood. About how old is the charcoal? The half- life of 14C is 5730 years.
*April 12, 2016*

**Math**

The Sun hits a 30 foot flagpole at a 60° angle and casts an unobstructed 52 foot shadow. If a building is built 32 feet away, what height will the shadow strike the side of the building? (round to nearest tenth)
*December 9, 2015*

**Math Plz help**

A theoretical probability distribution shows the probabilities of all the outcomes except for one. If the total of the shown outcomes is 0.5, then the probability of the missing outcome must be A.) 0.25 B.) 0.2 C.) 0.75 D.) 0.5
*February 20, 2015*

**Algebra 1**

Yes
*January 28, 2015*

**Statistics**

Waiting times to receive food after placing an order at the sandwich shop follow an exponential distribution with a mean of 46 seconds.? Calculate the probability a customer waits: a.) Less than 26 seconds b.) More than 105 seconds c.) Between 38 and 60 seconds d.) Fifty ...
*October 19, 2014*

**math**

Problem is 81+162 is not 216 it's 243
*May 2, 2014*

**Polynomials**

can someone show me how to get the sum, difference and product of this problem 2x^2-1∶ x^3- x^(2 )+ 2^x- 1
*September 18, 2013*

**Polynomials**

can someone show me how to do the sum, difference and product for this problem
*September 18, 2013*

**finance**

You deposit $1000 at 2% for 20 years, compounded daily. What's the future value? (Remember, in this case your interest is going to be 0.02/365).
*September 16, 2013*

**Astronomy**

The saros cycle
*June 11, 2013*

**Statistics**

A sport preference poll yielded the following data for men and women. Use a 5% significance level and test to determine if sport preference and gender are independent. Sport Preferences of Men and Women Basketball Football Soccer Men 20 25 30 75 Women 18 12 15 45 38 37 45 120 ...
*April 23, 2013*

**Statistics**

The manufacturer of a new compact car claims the miles per gallon (mpg) for the gasoline consumption is mound-shaped and symmetric with a mean of 24.6 mpg and a standard deviation of 11.2 mpg. If 30 such cars are tested, what is the probability the average mpg achieved by ...
*April 23, 2013*

**health**

What supplement has been known to reduce symptoms of aggression and depression in patients, especially women with borderline personality disorder?
*January 2, 2013*

**math**

eddie is thinking of a number between 149,000 and 150,000. his number has a tens digit that is 7 more than its ones digit. the sum of the tens and ones digit is 9. what is eddies number?
*September 6, 2012*

**physics**

engine falls from sky at a horizontal speed of 280 m/s and a altitude of 4500, whats horizontal distance the engine will travel before it hits the ground
*February 1, 2011*

**english**

Explain why it is necessary to have the following literary elements in a piece of literature.
*October 5, 2010*

**5th grade**

unscramble orisednoda
*September 27, 2010*

**child growth development**

is it B
*June 9, 2010*

**child growth development**

You're likely to be observing the rooting reflex when the baby A. turns his or her head and mouth toward a stimulus that brushes his or her cheek. B. sucks at almost any object that touches his or her mouth C. voluntarily seeks out objects to grasp and to hold D. lifts his...
*June 9, 2010*

**child growth development**

Betty's cervix is fully dilated and contractions are strong. Nurse Lee explains to Betty's husband that his wife is in the stage. A. crowning B. effacing C. placental D. transition I think the answer is B
*June 9, 2010*

**child growth development**

is it A
*June 9, 2010*

**child growth development**

is it A
*June 9, 2010*

**child growth development**

is it D
*June 9, 2010*

**child growth and development**

is it D
*June 9, 2010*

**child growth and development**

is it A
*June 9, 2010*

**biology**

Explain why a person should believe that all life that currently exists on planet earth evolved from a simple, common ancestor through the process of mutation, natural selection, sexual selection and genetic drift.
*May 4, 2010*

**Physics**

How fast must a truck travel to stay beneath an airplane that is moving 139km/hr at an angle of 25° to the ground?
*February 8, 2010*

**chemistry 11**

explain the process of a bohr model
*December 3, 2009*

**Math**

What is not a compatible number to 76 A: 80 B: 75 C: 70 D: 60
*September 26, 2007*

**math**

The Population of a town increased by 80% in 5 years. If the population is currently 18,000, find the population of this town 5 years agao. (Round to the nearest whole, if necessary). please send formula of this equation
*September 3, 2007*

**algebra 1**

i need help with graph and equations How can we help you?
*September 14, 2006*

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