Questions by Riza Khan

Questions by Riza Khan

Write the following proportion using colons. 7 is to 21 as 3 is to 9. a. 7:21 = 3:9 b. 7:3 = 21:9 c. 21:7 = 3:9 d. 7:21 = 9:3

asked Dec 16, 2017

2 answers

0 votes

218k views

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. What is the BEST explanation of the relationship between wavelength and wave energy?

asked Dec 9, 2017

2 answers

1 vote

131k views

How did the invention of the printing press impact the world of art? A.) Each work of art became unique. B.) Works of art became available only to the rich. C.) Images could be reproduced on a mass scale.

asked Mar 25, 2017

2 answers

5 votes

139k views

A stadium has 20,000 reserved seats and 25,000 general admission seats. If reserved seats are $17.50 and general admission seats are $10.75, how much money would be taken in if tickets for all the seats

asked Mar 8, 2017

1 answer

5 votes

225k views

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