Questions by Mohammad Reza Mrg

Questions by Mohammad Reza Mrg

Help me and you will be so nice here in a picture

asked Feb 3, 2021

1 answer

4 votes

101k views

I have to find the answer if 33% of 21

asked Jan 8, 2021

1 answer

2 votes

46.5k views

What value(s) of x will make the expression x^2-4/x^2-9 undefined? A. X=-2, X= 2, X=-3, and x= 3 B. X=-3 and x = 3 C. X=3 D. X=2

asked Nov 20, 2020

1 answer

4 votes

183k views

1) The heat of combustion for the gases hydrogen, methane and ethane are −285.8, −890.4 and −1559.9 kJ/mol respectively at 298K. equation 1 H2 + 1⁄2O2 ---> H2O ΔH = −285.8 kJ equation 2 CH4 + 2O2 --->

asked Aug 28, 2020

1 answer

3 votes

47.9k views

Plz help ZOOM IN TO SEE IT CLEAR

asked Mar 25, 2020

2 answers

2 votes

46.5k views

Add the two expressions. 8.9x−5 and −6.8x+8 Enter your answer, in simplified form, in the box.

asked Oct 28, 2019

1 answer

2 votes

105k views

Find the volume of a cone that has a 2 in. radius and a height of 6 in.

asked Mar 6, 2019

1 answer

3 votes

72.0k views

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