Questions by David Yang Liu

Questions by David Yang Liu

aA triangle has sides whose lengths are 5,12, and 13. A similar triangle could have sides with lengths of-

asked Sep 26, 2023

1 answer

5 votes

89.8k views

Tell me whether the following mystery substances are acids or bases/alkaline: a. has pH of 2.5, litmus paper turned red b. has pH of 12.8, litmus paper turned blue

asked Aug 28, 2023

1 answer

3 votes

54.9k views

5. If I added two colors and took out one blue, what colors and how many did I add to get all the colors to have an equal chance of being selected? The teacher posted the answer to number 25 but didnt

asked Aug 18, 2023

1 answer

24 votes

110k views

Evaluate 2x + 6y when x = -4/5 and y= 1/3

asked Jan 27, 2023

2 answers

24 votes

87.4k views

When a comet gets near the Sun, it starts to melt, leaving behind small pieces. What happens when the Earth moves through a comet's orbit? A. A lunar eclipse occurs B. A meteor shower occurs as the small

asked Dec 28, 2022

1 answer

21 votes

135k views

The optics of your visual system have a total refractive power of about +60 D—about +20 D from the lens in your eye and +40 D from the curved shape of your cornea. Surgical procedures to correct vision

asked Sep 27, 2022

1 answer

1 vote

104k views

Pls help it’s due right now

asked Sep 16, 2022

2 answers

3 votes

146k views

What is the volume of the rectangular pyramid shown belown?

asked Aug 25, 2022

1 answer

23 votes

161k views

Land closer to the equator is A. colder B. warmer

asked Aug 9, 2022

1 answer

3 votes

21.9k views

A ball with a mass of 0.8 kg is thrown straight upward, flies up to its maximum height, and then falls back down. If the ball reaches a maximum height of 10.7 meters, how fast was the ball thrown initially?

asked Mar 18, 2022

1 answer

25 votes

201k views

Solve the equation below for c. a = b + c d

asked Nov 23, 2021

1 answer

3 votes

128k views

Explain the importance of the Island of Desima.

asked Aug 26, 2021

2 answers

2 votes

24.0k views

In the diagram, q1 = +1.39*10^-9 C and q2 = +3.22*10^-9 C. The electric field at point P is zero. What is the distance from P to q2?

asked Jun 22, 2021

2 answers

3 votes

156k views

-3W+7=-14 what does W equal

asked Mar 2, 2021

2 answers

5 votes

69.0k views

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