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Answers by Chnet

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A sample of polonium-210 has an initial mass of 390 milligrams (mg). If the half-life of polonium-210 is 36 days, how many mg of the sample remains after 36 days? A. 48.75 mg B. 392 mg C. 97.5 mg D. 195
answered Jan 28, 2022
1 vote
61.3k views
What clues have been given that imply that Stuffy Pete is probably poor or disadvantaged?
answered Aug 19, 2021
1 vote
59.9k views
Draw the product of the reaction between 2-pentanol and PBr3. You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. Do not include counter-ions, e.g., Na , I-, in your
answered Aug 11, 2021
3 votes
231k views
In which era of American history is or was intercultural communication not necessary? O early colonialist O industrialization and melting pot eras O today none of the above
answered Aug 5, 2021
2 votes
118k views
Someone help please For this triangle shown, what is the sine of angle C?
answered Jun 26, 2021
4 votes
234k views
How can the perspective of a single individual at an historical event shape our point of view on history? What modern devices or trends aid in this view?
answered Jun 12, 2021
7 votes
78.2k views
Where did Texas get it name from
answered Mar 16, 2021
3 votes
146k views
How many solutions are there to the equation below? 5x + 48 + 7 x = 12(x+4)
answered Feb 18, 2021
4 votes
25.3k views
What is 2/3 in simplest form?​
answered Feb 7, 2021
4 votes
8.3k views
Omar Khayyam was most famous for ____________. a. architecture c. astronomy b. poetry d. medicine Please select the best answer from the choices provided A B C D
answered Nov 12, 2020
4 votes
69.2k views
Mid-ocean ridges are places where tectonic plates are doing what?
answered Aug 21, 2020
2 votes
161k views
In the Black-Scholes model N(d1) represents the a. Hedge ratio. b. Partial derivative of the call's value with respect to the stock price. c. Change in the option's value given a one-dollar change in the
answered Aug 14, 2020
6 votes
217k views
What is the strongest force on earth?
answered Jul 10, 2020
3 votes
45.2k views
mark raises guppies in an aquarium. he finds out that guppies reproduce very rapidly and the number doubles every month. He starts out with 10 guppies, and the function y=10(2^x) models the number of guppies
answered May 18, 2020
3 votes
158k views
State and describe the function of the three main types of lymphocytes in our body.
answered Jan 5, 2020
5 votes
148k views
What volume of 1.00 m lif solution is needed to provide 1.50 moles of lif?
answered Nov 22, 2019
5 votes
101k views
Suppose the carnival director asks you to create a game board that is 1,120 square inches. Find the dimensions that would meet this request by setting the area equation equal to 1,120, solving for x, and
answered Jun 25, 2019
1 vote
64.1k views
Convert to proper fraction or mixed number (do not reduce to lowest terms): .851
answered Apr 19, 2019
1 vote
154k views
How did the Santa Fe Ring profit from the land ownership crisis?
answered Mar 23, 2019
5 votes
35.2k views
In the figure below, if BE is the perpendicular bisector of AD what is the value of x a-2 b-3 c-4 d-5
answered Mar 5, 2019
4 votes
121k views
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