Questions by Patryk Obara

Questions by Patryk Obara

4. Phosphorus-32 has a half-life of 14.3days. How long would it take a 50-mg sample to decay to 3 mg

asked Jan 4, 2020

1 answer

4 votes

114k views

Please I need help :(

asked Jan 4, 2020

2 answers

5 votes

101k views

How to work out the perimeter

asked Oct 22, 2019

2 answers

0 votes

3.0k views

Which sentence best describes the mutual distrust between the united states and the ussr? both countries realized that their rival was just trying to maintain its own security. both countries felt that

asked Sep 8, 2019

2 answers

0 votes

30.8k views

A common trait shared by many developing nations is that they?

asked Jun 16, 2019

1 answer

5 votes

67.7k views

Which is NOT one of the differences between literary works in dramatic works? a. Dialogue is used b. Stage directions are given c. The content is meant to be performed on stage

asked Mar 4, 2019

2 answers

2 votes

219k views

The length of a rectangle is 10 feet longer than it is wide. if each side is increased 10 feet, then the area is multiplied by 4. what was the size of the original rectangle?

asked Feb 7, 2019

1 answer

4 votes

2.5k views

Which two hormones are involved in calcium homeostasis? A. Glucagon and calcitonin B. Parathyroid hormone and thyroid hormone C. Calcitonin and parathyroid hormone D. Thyroid hormone and glucagon

asked Oct 21, 2018

1 answer

4 votes

21.2k views

Each point on the edge of a circle is equidistant from the center of the circle. the center of a circle is located at (6, 3). which point on the y-axis could be on the edge of the circle if the distance

asked Sep 23, 2018

2 answers

5 votes

61.0k views

The voyages of European exploration during the 15th and 16th centuries were made possible MAINLY by A) the Protestant Reformation. B) the success of The Crusades. C) many new or improved technologies.

asked Jul 22, 2018

1 answer

1 vote

3.1k views

Solve the following system of equations. Enter the y-coordinate of the solution. Round your answer to the nearest tenth. 5x+2y=21 -2x+6y=-34 step by step please

asked Feb 19, 2018

1 answer

5 votes

57.5k views

Pioneer species are found in area's A) undergoing primary succession B) undergoing secondary succession C) of climax communities (will upvote!) :*

asked Jan 2, 2018

2 answers

1 vote

101k views

If a hypothesis can stand the test of repeated examination, it can become a _____. theory law observation experiment

asked Sep 2, 2017

2 answers

0 votes

3.5k views

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