Questions by John Zhu

Questions by John Zhu

What are the quotient and remainder when 5x^4 - 3x^2 is divided by x^3-x^2 2 : a.Quotient: 5x , Remainder: −8x^2 b. Quotient: 5x^2 , Remainder: −3x^2 c. Quotient: 5x , Remainder: −3x^2 d. Quotient: 5x^2

asked Dec 18, 2024

1 answer

3 votes

228k views

Show that a quadratic form ax² +bxy+cy² may be converted to a form ax ²+by² by suitable choice of θ in the substitution x=x cosθ−y sinθy=x sinθ+y cosθ, by checking that the coefficient of x y is (c−a)sin2θ+bcos2θ.

asked Dec 18, 2024

1 answer

4 votes

119k views

Which of the following statements is true about the electron transport chain? 1) Electrons start out at very high energy and lose energy at each transfer step. 2) Electrons start out at very low energy

asked Jul 15, 2024

1 answer

4 votes

218k views

I am able to think of two possible mechanisms for alcohol+PCl₅ here, SN1 and SN2. In SN1, Inversion won't occur whereas, in SN2 inversion will occur. Which of the two is correct?

asked May 27, 2024

1 answer

2 votes

57.7k views

With reference to international political economy, can you identify the following concepts and terms, or provide the required answer: Four Tigers a. Refers to the four major global financial institutions.

asked Apr 27, 2024

1 answer

2 votes

150k views

What is the value of 2a - b in the equation (x-1) x (x+9) = x² + ax - b? a) 9 b) -9 c) 18 d) -18

asked Apr 10, 2024

1 answer

2 votes

175k views

(c) The lines 'As if it were a loaf of bread' and 'Like a miner, into sleep' are examples of which of the following poetic devices? (i) simile (iii) irony (ii) metaphor (iv) personification (d) The dog

asked Nov 6, 2023

1 answer

6 votes

8.9k views

Write an expression to model the perimeter of a football field if the length of a football field is three-fourths the width of the football field. (With steps)

asked Jun 15, 2023

1 answer

2 votes

68.6k views

what was the group of powerful lawyers and business people who made illegal land deals in the new mexico territory known as ?

asked May 26, 2023

1 answer

22 votes

158k views

Pls help me? I’m struggling

asked Oct 23, 2022

1 answer

5 votes

27.1k views

As a leader of Florence, Cosimo de’ Medici was best characterized as a pope. patron. statesman. dictator

asked Sep 10, 2022

1 answer

5 votes

64.5k views

Which direction will a magnet point, if it is suspended in space by an astronaut? Please explain...

asked Aug 4, 2022

1 answer

4 votes

35.1k views

Where is the thinnest layer of earth’s crust located?

asked Jul 8, 2022

1 answer

4 votes

108k views

What is the highest level of complexity for a single celled organism?

asked Apr 28, 2022

1 answer

0 votes

23.4k views

Which value is equivalent to 7 to the 3rd power

asked Mar 6, 2022

1 answer

4 votes

183k views

Summarize article three of the constitution in one sentence

asked Jan 19, 2022

1 answer

19 votes

169k views

Why do you need to rinse all tank decorations and presoak the gravel before adding it to your tank? A. To keep the tank as clean as possible B. It will kill the fish if you do not C. The fish will not

asked Oct 17, 2021

2 answers

3 votes

74.7k views

What are the following terms most accurately describes the fraction 2/5 ? whole number ? rational ? irrational ? integer ?

asked Aug 15, 2021

1 answer

2 votes

171k views

Solve for Y. Y/11.2=7

asked Jul 28, 2021

1 answer

2 votes

195k views

You are a medical scientist who has been doing research on dialysis patients to better understand the effect of different solutions on blood cells. You put a patient's blood cell in three mineral solutions:

asked Jul 9, 2021

2 answers

1 vote

183k views

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