Answers by Shelman

Answers by Shelman

a rock sample contains 25 percent k-40 and 75 percent daughter product ar-40. if k-40 has a half-life of 1.3 billion years, how old is the rock?

answered Jan 25, 2021

5 votes

177k views

Which region had previously been claimed by France and Germany and created tension between the two countries prior to World War I

answered Sep 15, 2020

0 votes

140k views

The average temperature of the surface of the sun is 2,000,000 degrees Celsius.whats what's the temperature of the sun in degree Fahrenheit?

answered Sep 7, 2020

5 votes

108k views

How would you convert 3 yards 2 feet to inches

answered Jul 21, 2020

2 votes

177k views

A common theory about influenza is that it is a disease occurring primarily in cold weather. Doctors report incidences of illness such as influenza to the Centers for Disease Control (CDC). The graph below

answered Jul 13, 2020

2 votes

115k views

Please help please please please

answered Dec 18, 2019

3 votes

196k views

Which number is not rational? A)7.0 B)1/7 C)Square Root Of 7 _ D)7.1

answered Dec 6, 2019

3 votes

121k views

What is the perimeter of square PQRS?

answered Oct 30, 2019

3 votes

136k views

What should you do before you drive if you are drowsy?

answered Aug 6, 2019

3 votes

98.7k views

Please helppp!!! Jeremy deposited x dollars in his investment account on January 1, 2001. The amount of money in the account doubled each year until Jeremy had 480 dollars in his investment account on

answered Jul 20, 2019

2 votes

18.2k views

Can anyone help me with 15a b c

answered May 11, 2019

1 vote

42.4k views

A plant that has been raised in a sterile environment shows symptoms of a viral infection. how would you explain this?

answered Jan 24, 2019

0 votes

138k views

_____________ are drugs that affect perception, sensation, awareness, and emotion. a. Stimulants b. Depressants c. Narcotics d. Hallucinogens

answered Jun 13, 2018

2 votes

170k views

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