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Answers by Gefei

Answers by Gefei
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If xy = 6 and x^2y+xy^2 +x+y=63, find x^2+y^2.
answered May 16, 2021
7 votes
51.1k views
2.In the first paragraph, Della counts the money three times. What inference can you make about Della based on her actions? a. She has a bad memory. b. She is superstitious. C. She wishes there was more.
answered Apr 14, 2021
2 votes
193k views
How many students are in Year 11?
answered Apr 2, 2021
1 vote
141k views
Please help me it's a emergency!!!!!​
answered Mar 16, 2021
6 votes
121k views
MLA style recommends that you list the url's in the citations. True or False​
answered Feb 17, 2021
2 votes
39.9k views
What does Huck do with his money?
answered Feb 11, 2021
3 votes
146k views
A motorcyclist is trying to leap across a canyon by driving horizontally off the higher side of the canyon at a speed of 78.0 m/s. If air resistance is neglected and the difference in height on two sides
answered Oct 27, 2020
4 votes
189k views
How did the Jay Treaty (1795) between Britain and the U.S. change America's relations with Spain? A. Spain quickly resolved its differences with the United States. B. Spain was pushed into an alliance
answered May 18, 2020
3 votes
235k views
To give instructions or change activities during physical activity, teachers should​
answered Mar 17, 2020
3 votes
232k views
What do you think Henry IV meant when he said, “Paris is well worth a mass”?
answered Mar 9, 2020
5 votes
135k views
An object on the end of a spring with spring constant k moves in simple harmonic motion with amplitude A and frequency f. Which of th following is a possible expression for the kinetic energy of the object
answered Jan 14, 2020
2 votes
38.4k views
How has the human population influenced this food chain? A) It has increased the prairie dog population by killing off the predators. B) It has reduced the prairie dog population because they are pests
answered Nov 29, 2019
2 votes
104k views
Georgia's "Barrier Islands" are circled on the map. Which of these offers the BEST explanation for this name? A) It attracts many tourists each year. B) It protects Georgia's fresh water supply. C) It
answered Jun 23, 2019
0 votes
187k views
An example of antagonistic hormones controlling homeostasis is _____. an example of antagonistic hormones controlling homeostasis is _____. epinephrine and norepinephrine in fight-or-flight responses thyroxine
answered May 19, 2019
5 votes
70.0k views
What is the value of 5^4 over 5^6
answered Sep 9, 2018
6 votes
77.9k views
The input work done on a machine is 9.63 × 103 joules, and the output work is 3.0 × 103 joules. What is the percentage efficiency of the machine?
answered Jun 17, 2018
3 votes
202k views
NEED ANSWER ASAP A letter often breaks down the barrier between the reader and writer, and allows the author to set a personal tone. Which sentence from Lake's letter best demonstrates this effect? Dear
answered Jun 8, 2018
3 votes
151k views
The oldest known major literary work in the world is called
answered Apr 15, 2018
3 votes
22.0k views
I need help on 14 please
answered Mar 13, 2018
3 votes
173k views
A cat has a mass of 3 kg and runs at a speed of 6 m/s. how much kinetic energy does the cat have? a. 108 J b. 9 J c. 75 J d. 54 J
answered Jan 20, 2018
1 vote
7.5k views
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