Questions by Jstol

Questions by Jstol

What is the critical angle if a ray of light in Quartz (n=1.46) is headed into Water (n=1.33)?48.8°65.6°43.2⁰0.911⁰

asked Jul 8, 2023

1 answer

33 votes

348k views

a text book store sold a combined total of 411 psychology and math textbooks in a week. the number of math textbooks sold was 63 less than the number of psychology textbooks sold. how many textbooks of

asked Feb 14, 2023

1 answer

15 votes

150k views

Yan had 5 trading cards, and then his friend gave him more cards. Now he has 16 trading cards. Let t represent the number of cards his friend gave him. Write both an addition equation and a subtraction

asked Jan 27, 2023

1 answer

16 votes

237k views

A waitress sold 15 ribeye steak dinners and 26 grilled salmon dinners, totaling $553.14 on a particular day. Another day she sold 24 ribeye steak dinners and 13 grilled salmon dinners, totaling $581.17.

asked Jan 21, 2023

1 answer

1 vote

318k views

What change, if any, needs to be made in sentence 8? A. A. Change "is" to "are" Selected: b. B. Change "made" to "making"This answer is incorrect. C. C. Change "especially" to "especialy" d. D. No change

asked Oct 10, 2022

1 answer

24 votes

80.2k views

Simplify fully (x²+3)² - (x²-1)²

asked Jul 27, 2022

1 answer

27 votes

490k views

Which does not represent the set shown on this number line?

asked Jul 9, 2022

1 answer

39 votes

156k views

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