Questions by YangXiaoyu

Questions by YangXiaoyu

After a rotation of 90° about the origin, the coordinates of the vertices of the image of a triangle are A'(6, 3), B'(–2, 1), and C'(1, 7). What are the coordinates of the vertices of the pre-image? A

asked Sep 3, 2020

1 answer

0 votes

203k views

Does anyone know the answer?

asked Aug 16, 2020

1 answer

0 votes

182k views

Sperm require seminal fluid in order to survive in the acidic environment of the vagina. True False

asked Jun 21, 2020

1 answer

2 votes

133k views

During a hot summer week the water level in Wei's pool decreased, by 1.9 cm wei added water to the pool increasing the pool level by 3.5 cm. During the next week the water level decreased by 2.4 cm. How

asked Apr 20, 2020

1 answer

2 votes

169k views

Using the periodic table, choose the more reactive nonmetal. Te or O

asked Nov 18, 2019

2 answers

3 votes

110k views

A _____ is a set of norms, or culturally defined expectations, that define how people of one gender ought to behave.

asked Feb 15, 2019

1 answer

5 votes

169k views

How can food processing affect the sodium content of foods

asked Dec 28, 2018

1 answer

3 votes

12.1k views

What is the element of an atom that has six protons and six electrons

asked Dec 18, 2018

1 answer

4 votes

118k views

Congress has established two local courts for the District of Columbia- a Court of Appeals and a _____. a. superior courtB. claims courtC. civilian tribunalD. tax court

asked Dec 11, 2018

2 answers

1 vote

187k views

Hello, I need to analyze an experiment... could you help me? Stewart Fist reported the results of an experiment investigating the link between cell phone use and tumors in mice. the study exposed 100 mice

asked Nov 20, 2018

1 answer

4 votes

76.3k views

Why prose is an important element of language?

asked Oct 27, 2018

1 answer

0 votes

19.6k views

At Southside Middle School, 40% of the students play an instrument. There are 305 students. How many students play an instrument?

asked May 9, 2018

2 answers

4 votes

166k views

If you add up the durations from left to right on any level of a note tree, you end up with a?

asked May 10, 2017

2 answers

4 votes

57.3k views

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