Questions by Chao Xu

Questions by Chao Xu

If a consumer lose 70% of the 2000J energy in their food as a waste heat and 20% in their waste products. Calculate how many joules this is

asked Oct 17, 2024

1 answer

3 votes

199k views

Trigonometry problems help pls

asked Sep 12, 2024

1 answer

3 votes

104k views

What rate of return is offered by an investment that costs $1,000 today, and pays $250 per year, at the end of each year, for five years?

asked Sep 1, 2024

1 answer

0 votes

170k views

Which of the following is not an element of the project management triangle? 1) Time 2) Cost 3) Quality 4) Scope

asked Aug 21, 2024

1 answer

1 vote

140k views

using dimensional analysis in Chemistry Grade 11, please help me solve the following problem:Popcorn kernels are sold by the pound. If the average mass of one kernel is 125 mg, how many kernels are in

asked Sep 16, 2023

1 answer

2 votes

121k views

Which expression represents the algebraic phrase “the sum of negative three-eighths and four times x minus nine times z”? Negative 9 z (Negative StartFraction 3 over 8 EndFraction + 4 x) Negative StartFraction

asked Aug 24, 2023

1 answer

4 votes

168k views

PLEASE HELP ASAP prove the identity: sec x sin x —————— =sin^2x tan x+cot x Options in pic

asked Apr 27, 2023

1 answer

3 votes

186k views

In right triangle ABC, angle c is a right angle and sin A= sin B. What is m

asked Apr 2, 2023

1 answer

1 vote

59.5k views

Were Japanese American minorities treated fairly or unfairly during world war II?

asked Jan 27, 2023

2 answers

1 vote

89.1k views

The blue lines on this map are pointing to what river

asked Oct 26, 2022

2 answers

6 votes

589 views

How was Towan Head formed?

asked Aug 2, 2022

2 answers

1 vote

163k views

If it is known that a motor battery has an input voltage of 12V and a capacity of 6 Ah, how much power and resistor value is required to turn on 8 lamps with a parallel circuit, with the specifications

asked Jun 26, 2022

1 answer

2 votes

156k views

Pangolins are mammals, although they look like reptiles. With their scaly protective skin, pangolins can roll into a tight ball to confuse and deter predators. Pangolins are mostly noctural, only coming

asked May 18, 2022

2 answers

0 votes

196k views

Solve the following linear equation for k. 2 (k-5) + 3k = k + 6

asked Apr 9, 2022

1 answer

1 vote

26.7k views

The energy source used in nuclear power plants today is A. Fusion B. Both Fission and Fusion C. Fission D. Neither Fission or Fusion

asked Dec 2, 2021

1 answer

2 votes

233k views

A climate with short cool summers and long, bitterly cold winters is thea.mediterranean climate.b.tropical climate.c.continental climate.d.tundra climate.Please select the best answer from the choices

asked Nov 22, 2021

1 answer

1 vote

80.7k views

Find the slope of the line through (5,-5) and (11,8)

asked Nov 19, 2021

1 answer

5 votes

156k views

Hi! Just wondering, do y'all know another language besides English, and if so, what is it? If you only know English, which one would you want to know as a sedond language?

asked Nov 16, 2021

1 answer

2 votes

67.7k views

What's the equation of a line that passes through (-4,-7) and (4,-1)

asked Aug 25, 2021

1 answer

5 votes

206k views

Please help me with this before I get and F :(((

asked May 14, 2021

1 answer

0 votes

99.6k views

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