Questions by Coppro

Questions by Coppro

A rock formed with 1,000 atoms of a radioactive parent element, but only contains 125 radioactive parent atoms today. If the half life is 1,000,000 years, how old is the rock?

asked Mar 2, 2020

1 answer

0 votes

8.3k views

TOUGHEST MATH I have $ 500 SPEND 200 -- -- 300 150 --- 150 90 ------ 60 60 -----O $ 500 $ 510 Where did this extra $10 come from ?

asked Jan 13, 2020

2 answers

0 votes

105k views

In the spaces next to each number write the part of speech of each italicized word used in the sentence below. Use abbreviations: n., pron., adj., v., adv., prep., conj., inter. When they raise me to a

asked Mar 9, 2019

1 answer

1 vote

132k views

Triangle KLM is similar to triangle RST . Which statement is a proportionality statement for the ratio of the sides of the triangles? A) KLRS=LMRT=MKST A) KLTS=LMRS=KMTR A) KMSR=LMST=KLRT A) KLRS=LMST=KMRT

asked Feb 23, 2019

1 answer

3 votes

43.1k views

Solve the equation by factoring. z^2-6z-27=0

asked Aug 18, 2018

1 answer

4 votes

229k views

Which condition or circumstance resulted in peaceful transitions to independence in some African nations?

asked Jan 11, 2017

1 answer

3 votes

148k views

What is 640 times 3. Solve and then estimate.

asked Sep 19, 2016

1 answer

0 votes

232k views

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