Questions by JacekM

Questions by JacekM

Which of the following is/are used to classify a star based on its temperature and luminosity? A. Line spectra B. Blackbody spectrum C. Parallax measurements D. Hertzsprung-Russell diagram

asked Apr 18, 2020

2 answers

1 vote

119k views

Leia, who has been constantly harassed and bullied by her brother Luke for as long as she can remember, believes that she will never feel happy and free to enjoy life no matter how hard she tries. Her

asked Feb 4, 2020

1 answer

1 vote

97.7k views

Use the quadratic formula to solve the equation. 4x^2– 10x + 5 - 0 Enter your answer in simplified radical form X=_____ X=_____

asked Jan 1, 2020

1 answer

2 votes

152k views

which statement describes how rays behave when they travel through a media during reflection and refraction

asked Oct 4, 2019

2 answers

5 votes

168k views

Jennifer stands 80 ft above sea level at the top of a lighthouse. she sees a boat sailing 400 ft from the lighthouse.what is the angle of depression from the top of the lighthouse to the boat?round to

asked Jul 26, 2019

2 answers

3 votes

157k views

Which equation is a point slope form equation for line AB ? y+2=2(x+3) y−3=2(x−2) y−5=2(x−6) y−6=2(x−5) A graph with a line running through point A, with coordinates (3, 2), and point B, with coordinates

asked Feb 24, 2019

2 answers

3 votes

184k views

Find the value of f(3) if f(x) = 4x^2 - 8x + 3

asked Feb 22, 2019

2 answers

3 votes

225k views

The continental crust covers _______ of the Earth’s surface.

asked Jun 8, 2018

2 answers

1 vote

178k views

What will happen if a shoe firm sells its shoes at a price lower than the opportunity cost of the inputs used in the production process?

asked Jan 8, 2018

1 answer

1 vote

19.8k views

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