Questions by Gustavo Kawamoto

Questions by Gustavo Kawamoto

What was the initial quantity of vanadium-49, which has a half-life of 330 days, if after 540 days there is a 1,750 g sample remaining?a.)5,440.42g b.)3,500g C.) 8,700g d.)2,863.63g e.)98g

asked Sep 18, 2023

1 answer

5 votes

188k views

Solve 4x^2 + 16x - 84 = 0 by completing the square.

asked May 3, 2023

1 answer

4 votes

178k views

Which substances form due to a chemical reaction? A) Mass B) Products C) Atoms D) Reactants

asked Jan 8, 2023

1 answer

4 votes

8.2k views

Why is a statement such as: AB ⩭ DE incorrect?

asked Oct 1, 2022

1 answer

5 votes

212k views

Alicia drew a map of Texas. In the scale Alicia used for the map, 1/2 inch represents 20 miles. What is the distance between two cities on the map if the actual distance between the two cities is 360 miles?

asked Aug 5, 2022

1 answer

17 votes

219k views

What is the solution to the inequality -7x+37<-5 ?

asked Jul 3, 2022

2 answers

0 votes

98.6k views

In the context of data-flow diagrams (DFDs), a(n) _____ shows either the source or destination of the data.

asked Jun 23, 2022

1 answer

4 votes

12.1k views

A university has 28,020 students. In a random sample of 285 students, 19 speak three or more languages. Predict the number of students at the university who speak three or more languages. The expected

asked Feb 9, 2022

1 answer

14 votes

143k views

What would happen to life on Earth if all the liquid fresh water were used up?

asked Dec 4, 2021

1 answer

5 votes

182k views

In the united states how many people are now left in the U.S.A A 7.53 billion B 0 C 1,000,000 D 1,000 if your awnser is blank your awnser will be deleted

asked Nov 12, 2021

2 answers

0 votes

232k views

Help me pls, it’s for right now

asked Oct 19, 2021

1 answer

2 votes

989 views

The product of 6 and 2 added to the quotient of 9 and 3

asked Sep 21, 2021

2 answers

0 votes

139k views

Find the simplified product :

asked Jul 26, 2021

2 answers

5 votes

66.4k views

(2a-b-c)³+(2b-c-a)³+(2c-a-b)³ factorise

asked Feb 11, 2021

1 answer

1 vote

98.5k views

In which example does the author use classification? Clouds are first classified according to how they are formed. There are two basic types: (1) Clouds formed by rising air currents. These are piled up

asked Jan 6, 2021

2 answers

5 votes

93.4k views

The plasma membrane is comprised of a bilayer ofA. phospholipidsB. disacharidesC. polypeptidesD. nucleic acids

asked Sep 19, 2020

1 answer

0 votes

73.4k views

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