Recent activity by Donghui Zhang

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Lithium is a reactive metal that reacts with oxygen to form an oxide. a. How many valence electrons does lithium have?

asked Nov 14, 2024

1 answer 218k views

answered Oct 9, 2024

1 answer 128k views

Let f(x)=−x2 +7x on [4,9]. Use the IVT to determine if there is a solution to f(x)=10 in the interval between 4 and 9 . If so, find the value of c in the interval such that f(c)=10. - f(x) is continuous

answered Sep 13, 2024

1 answer 64.5k views

I need some help with this question how do I go about doing this?

answered May 7, 2024

1 answer 3.8k views

What made native Americans different than other minorities in the US?

answered Apr 30, 2024

1 answer 227k views

Find the third quartile Q₃ of the kt of 24 sorted values shown below Thus the third quartile Q₃ is ______ (Type an integer as a decimal)

answered Apr 28, 2024

1 answer 89.5k views

Which of the following statements about exercise and respiration is(are) false? a) Feedforward mechanisms help to increase ventilation in preparation for exercise. b) Negative feedback mechanisms help

asked Apr 13, 2024

1 answer 123k views

What are the non-cellular components of connective tissue called? A) Fibroblasts B) Collagen C) Mast cells D) Extracellular matrix

asked Apr 12, 2024

1 answer 208k views

The relationship between the number of games won during one season by a minor league baseball team and the average attendance at their home games is analyzed. A regression analysis to predict the average

answered Jan 20, 2024

1 answer 109k views

A student noticed that when he watches television, he scores lower on his test grades. Can one conclude that this negative correlation shows a causal relationship? No, because it is possible that the student

asked Jan 5, 2024

1 answer 12.3k views

Does Parris care about the souls of Rebecca, Martha, and John? Why does he want them spared?

asked Jan 4, 2024

1 answer 151k views

5 3 2 1 e 11 12 13 14 15 16 17 21 22 in ult, san 20. PART B: Which phrase from paragraph 5 helps the reader understand the meaning of "established"? e adults s ommon crees. The often attacks O O OC A "not

asked Sep 7, 2023

1 answer 72.9k views

Which river runs through the capitals of Austria, Slovakia, Hungary, and Serbia before emptying into the Black Sea?

asked Jul 27, 2023

1 answer 76.4k views

This is for the woman with one black wing perched over her eyes: lovely Frida, erect among parrots, in the stern petticoats of the peasant, who painted herself a present— wildflowers entwining the plaster

answered Jun 2, 2023

1 answer 99.9k views

- Chris deposited $435 in a new account at his bank. • The bank pays 1.7% interest compounded annually on this account. • Chris makes no additional deposits or withdrawals. How much interest will the account

answered Jun 1, 2023

1 answer 92.3k views

What is the surface area of a cone with the diameter of 12 meters and a slant height of 13.4 meters?

asked Jun 1, 2023

1 answer 155k views

Your grandma gave you $100 when you were born. On your 1st birthday, she gives you $105. Your 2nd birthday, she gives you $110. Every birthday, she gives you $5 more than your last. Write a program which

asked Apr 26, 2023

1 answer 103k views

I dont know this. pls help

asked Apr 21, 2023

2 answers 19.5k views

Submit Test 7 Tom says he won't vote for any woman for president. He says, "Woman shouldn't have the right to vote, let alone run a country." How would you classify his statement?

asked Feb 23, 2023

2 answers 194k views

What does the phrase “Forgiveness does not change the past, but it does enlarge the future.”- Paul Boese mean

answered Dec 17, 2022

2 answers 79.5k views

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