Questions by Pptang

Questions by Pptang

An electric heater 1kw 240v is used to raise the temperature of a 5kg copper block from 15 degrees to 33 degrees .if the specific heat capacity of copper is 400kg per kelvin and assuming no heat is lost

asked Dec 19, 2023

1 answer

1 vote

103k views

Which expression is equivalent to (2x + 7x*) - (5x² - 4x)? A –3x²+11 B –3x²+3 2x + 11x3 - 5x2 2x5 - 3x) - 5x

asked Oct 2, 2023

1 answer

7 votes

22.3k views

A doctor's office schedules appointments in 30-minute time slots. All appointments are 30 minutes long. The office is open 8 hours per day, 5 days a week. How many appointments can they schedule, in total,

asked Jul 28, 2023

1 answer

1 vote

98.6k views

A verb that has a noun or pronoun as the receiver of its action

asked Jul 20, 2023

2 answers

4 votes

50.8k views

3h - 2(4h - 5) = 10 - 5h A 0 B 4 C infinity many solutions D no solutions

asked Jul 8, 2023

1 answer

5 votes

85.7k views

Find the value of y. (7x-7) 63 (3x + 45) (-6)

asked Jul 5, 2023

2 answers

1 vote

110k views

Danica has x dollars. Gregg has 3 times the amount Danica has. Which expression represents the amount of money Gregg has?

asked Jan 13, 2023

1 answer

5 votes

111k views

Short breifing of foreign policy in the 1900s

asked Nov 27, 2022

1 answer

0 votes

172k views

10.00 cL = mL what is the answer

asked Oct 26, 2022

2 answers

1 vote

216k views

Aaaaaaaaaaaaaaaaaa pls help

asked Oct 16, 2022

1 answer

2 votes

54.4k views

Last week, the price of gas was $2.25 per gallon. This week, the price of gas has increased by 4%. What is the price of gas this week? G

asked May 17, 2022

1 answer

1 vote

135k views

Greg spent $4 on $5 packs of sport cards. How much did greg spend on each pack?

asked Mar 26, 2022

2 answers

7 votes

191k views

How to ensure validity in a investigation

asked Feb 8, 2022

2 answers

3 votes

137k views

Select the correct answer, Annette wants to find out which of two toothpaste brands people living in the town of Springville prefer, brand A or brand B. She uses a random sample to make this generalization:

asked Jan 16, 2022

1 answer

3 votes

214k views

A poll finds that 54% of the 600 people polled favor the incumbent. Shortly after the poll is taken, it is disclosed that the incumbent had an extramarital affair. A new poll finds that 50% of the 1030

asked Dec 22, 2021

1 answer

4 votes

102k views

Which of the following factors most generally contributes to the mental and emotional injury to a child and is punishable under P.C.22.04? a. Punishment b. Act of abuse c. Omission or Neglect d. Spanking

asked Nov 17, 2021

1 answer

1 vote

153k views

Find the slope of the line through the given points. 16 11 and 17-21

asked Aug 19, 2021

1 answer

1 vote

36.5k views

Describe how resources support a position.

asked Aug 5, 2021

2 answers

0 votes

203k views

Simplify. 9(y + 7) 63y 7y + 9 9y + 63 16y

asked Jul 25, 2021

2 answers

3 votes

136k views

Historians make interpretations about events based on novels based on the past. evidence they collect. the opinions of journalists. interviews with citizens.

asked Jun 23, 2021

2 answers

5 votes

40.3k views

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