Recent activity by Tiancheng Liu

Recent activity by Tiancheng Liu

High-pressure liquid chromatography (HPLC) is a methodused in chemistry and biochemistry to purify chemicalsubstances. The pressures used in this procedure range from around 500 kilopascals (500,000 Pa)

answered Nov 26, 2023

1 answer 87.6k views

Mikhail drew parallelogram HRIJK with coordinates H(1,0), I(4,0), J(2,1), K(-1,1) on a coordinate plane. find the coordinates of the image after Mikhail rotated clockwise 180° about the origin

asked Nov 1, 2023

1 answer 213k views

In an election, 313 votes are cast. How many votes are needed to have a majority of the votes in this election? Answer with a whole number of votes.

asked Oct 3, 2023

1 answer 41.6k views

Which would be the next number in the pattern? 36, 49, 64, 81 __

answered Oct 2, 2023

2 answers 215k views

Find the value of x xx in the triangle shown below. x = x=x, equals ∘ ∘ degrees

asked Jun 13, 2023

2 answers 123k views

What separates birds from lizards

answered May 12, 2023

2 answers 204k views

One way to create more fissionable fuel in the form of plutonium-239 is in which of the following?Select one:a.a coal-fire power station b.radioactive wastec.a meltdown of the cored.a breeder reactor

asked Feb 20, 2023

1 answer 98.9k views

Find the area of a triangle bounded by the x-axis the line f(x)=5-5/3x and the line perpendicular to f(x)

asked Jan 18, 2023

1 answer 37.7k views

14) The height, h metres, of a ball projected directly upwards from the ground can be modelled by h = 56t - 71, where t is the time in seconds after it leaves the ground. a) Find the height of the ball

answered Dec 11, 2022

1 answer 8.8k views

Nhận xét quan điểm đảm bảo và nâng cao chất lượng sẽ làm giảm năng suất.

answered Nov 18, 2022

1 answer 121k views

Solve the inequality: n - 7 > -4

answered Nov 16, 2022

2 answers 201k views

Calculate wavelength of tube of length 15, 18, 20 cm.

asked Oct 7, 2022

1 answer 210k views

What is the answer I have got the rest but I am struggling so much here

answered Sep 16, 2022

1 answer 200k views

I need help pls thank y

asked Aug 12, 2022

1 answer 175k views

Yo I’m so smart if 1+1= 2 Then 0+0=1 YOOOO I’m right-right?

answered Jul 28, 2022

2 answers 231k views

If a person is diagnosed with a mental disorder and substance abuse, that person has risk factors for _____. a social disorder a mood disorder anxiety sewerside

asked Jul 6, 2022

1 answer 47.3k views

Thane Company is interested in establishing the relationship between electricity costs and machine hours. Data have been collected and a regression analysis prepared using Excel. The monthly data and the

answered Apr 2, 2022

1 answer 234k views

Please answer my question who will answer my question I will give them so much points please

answered Mar 18, 2022

2 answers 137k views

Jacob really didn't want to go to the dentist yet, he went anyway. Cross o it bathe commas that are used incorrectly and add a comma when needed.

answered Feb 20, 2022

1 answer 156k views

How does the excerpt contribute to the power of Banneker’s message to Jefferson? Select the two correct answers. Banneker quotes a biblical figure to establish his moral superiority over Jefferson and

asked Feb 9, 2022

2 answers 47.4k views

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