Questions by TommyF

Questions by TommyF

Krypton-85 has a half-life of 10.76 years. How many years will it take for a sample of krypton-85 to decay to 30 percent of its initial quantity?

asked Nov 11, 2023

1 answer

33 votes

219k views

You can use a calculator to approximate tge logarithms. Round to four decimal place

asked Jul 10, 2023

1 answer

12 votes

529k views

The directrix and focus of a parabola are shown on the graph. Which is an equation for the parabola?X=-5

asked Jul 3, 2023

1 answer

39 votes

139k views

What are the angles for these?

asked May 24, 2023

1 answer

13 votes

306k views

5^4/5^7 simplified is

asked Feb 26, 2023

2 answers

33 votes

243k views

Simplify (x^3 + 2x^2 - x) + (4x^3 + x^2 + x)

asked Nov 18, 2022

2 answers

5 votes

237k views

A monopolistically competitive firm is currently producing 20 units of output. At this level of output the firm is charging the highest price it can at $20, has marginal revenue equal to $12, has marginal

asked Sep 27, 2022

1 answer

30 votes

311k views

1000 centimeters to yards is? O 10.93 yards O 0.09 yards O 90 yards O 25,127 yard

asked Jun 14, 2022

2 answers

5 votes

15.3k views

How many milliliters of a 25% (m/v) NaOH solution would contain 75 g of NaOH? A 19 mL B) 25 mL C 33 mL D 75 mL E 3.0 x 102 mL

asked Jun 4, 2022

1 answer

5 votes

435k views

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