Questions by Rashedcs

Questions by Rashedcs

I need help please...

asked Apr 7, 2020

2 answers

2 votes

234k views

A 50 gram bullet is fired through a 5 kg block of wood resting on a frictionless surface. The bullet has an initial speed of 500 m/s, while the block is initially at rest. After passing through the block,

asked Mar 25, 2020

1 answer

5 votes

89.3k views

In a certain country, the true probability of a baby being a boy is 0.538. Among the next four randomly selected births in the country, what is the probability that at least one of them is a girl? The

asked Jan 21, 2020

1 answer

4 votes

60.2k views

Joe spent half of his weekly allowance playing mini-golf. To earn money, his parents let him weed the garden for $6. What is his weekly allowance if he ended with $12? Let a=allowance

asked Jan 14, 2020

1 answer

3 votes

101k views

Imena's math test scores are 83, 93, 78, 89, and 83. She has one more math test this semester. What score most she get on the test to have a median score of 85?

asked Dec 23, 2019

2 answers

1 vote

63.2k views

Cerium-144 is a radioactive isotope with a half-life of 285 days. How long would it take for an initial sample of 15 grams of Cerium-144 to decay until only 5 gram remains? a. about 452 days b. about 855

asked Sep 25, 2019

1 answer

2 votes

112k views

1. A rectangle has an area given by A=x^2+5x+6. Find expressions for the possible lengths and width of the rectangle. 2. The profits of a company are found by subtracting the company's costs from it's

asked Jun 25, 2019

1 answer

3 votes

66.4k views

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