Questions by Jacek Rojek

Questions by Jacek Rojek

1. 50.0 g of an unknown metal was heated to 95.0 °C and added to 45.0 g of water at 25.0 °C in a calorimeter. Once the system reached equilibrium the final temperature was 28.5 °C. Calculate the specific

asked Dec 11, 2023

1 answer

21 votes

148k views

The _____________ is the member of a triad who benefits from conflict between the other two members of the group.

asked Jun 20, 2023

1 answer

20 votes

175k views

In the diagram, point D divides line segment AB in the ratio of 5:3. If line segment AC Is vertical and line segment CD is horizontal, what are the coordinates of point C?

asked Jan 1, 2023

1 answer

22 votes

32.0k views

Show that x² + x +1 is always positive for all real values of x

asked Dec 5, 2022

1 answer

12 votes

186k views

A volleyball player’s serving percentage is 75%. Six of her serves are randomly selected. Using the table, what is the probability that at most 4 of them were successes? A) 0.297 B) 0.466 C) 0.534 D) 0.

asked Oct 16, 2022

2 answers

25 votes

95.8k views

Use the Rule of 72 to find what interest rate is needed to double $10,000 investment in the given number of years.

asked Sep 7, 2022

1 answer

2 votes

95.2k views

I had a cup of tea into yes/no question

asked Jul 27, 2022

2 answers

5 votes

130k views

Help I need help with this

asked Jun 17, 2022

1 answer

2 votes

112k views

Jenifer y yo ___ (have) que estudiar.

asked May 7, 2022

2 answers

16 votes

165k views

Republicans feared that the Supreme Court might use its power of judicial review to declare the Civil Rights Act unconstitutional. In the Dred Scott decision of 1857, the Court had ruled that African Americans

asked Feb 19, 2022

2 answers

1 vote

163k views

Bill Ding plans to build a new hardware store. He buys a rectangular lot that is 50 ft by 200 ft, the 50-ft dimension being along the street. The store is to have 4000 ft2 of floor space. Construction

asked Jan 14, 2022

1 answer

24 votes

195k views

17. A company charges $3 for each balloon in an arrangement and a $10 delivery fee. You have $40 to spend. How many balloons can you afford? Write an equation and solve steps ?

asked Dec 20, 2021

1 answer

3 votes

24.9k views

9) A 5 inch by 7 inch picture has a frame surrounding it on all four sides of width w. The total area of the picture frame and picture is 80 square inches. a) Using the diagram and information, write an

asked Dec 15, 2021

1 answer

1 vote

140k views

Postmodern theorists such as Baudrillard refer to __________ as a situation in which the simulation of reality is more real than experiencing the event itself.

asked Nov 11, 2021

1 answer

3 votes

18.5k views

A 400-room property that assigns 16 rooms to one section housekeeper and groups the section housekeepers in teams of 5 will need the following number of teams to service the guestrooms when the property

asked Apr 17, 2021

1 answer

2 votes

6.7k views

How many atoms of carbon are present in 1.5 mole of carbon.

asked Apr 9, 2021

1 answer

5 votes

134k views

Solve the system of equations by transforming a matrix representing the system of equation into reduced row echelon form. 2x + y − 3z= −20 x + 2y + z= −3 x − y + 5z= 19 What is the solution to the system

asked Oct 17, 2020

2 answers

3 votes

130k views

HIV shows a high degree of variability because: A. HIV is derived from many different strains of monkey viruses B. HIV has been infecting humans for a long time C. Prolonged use of anti-HIV drugs results

asked May 10, 2020

1 answer

2 votes

148k views

How did American population shift in America between 1860 and 1920(where were people living)?

asked Jan 16, 2020

1 answer

4 votes

140k views

Nico won $70 in a drawing contest. He spent 3/8 of the winnings buying more art supplies. How much money does he have left? Plz show work and explain your answer. A.$26.75 B.$35.25 C.$43.75 D.$52.50

asked Jan 6, 2020

2 answers

1 vote

93.1k views

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