Recent activity by Andrey Petrov

Recent activity by Andrey Petrov

3 reasons why gaseous exchange is essential

asked Dec 24, 2023

1 answer 66.3k views

The question is in the image. Answer question 14 only.

asked Nov 7, 2023

1 answer 126k views

A group of preschoolers has 15 boys and 12 girls what is the ratio of girls to boys

answered Oct 18, 2023

2 answers 145k views

When scientists replace a gene (DNA) from one species with the same gene (DNA) from a different species, the same amino acids will be produced. This happens because a) all organisms have nucleic acids,

asked Oct 7, 2023

1 answer 108k views

What is -1,5 on a graph

asked Jun 1, 2023

1 answer 123k views

Consider the following reactions Ca(OH)2 + 2NH4Cl - Cacl2 + 2H₂O + 2NH2 a) how many grams of cacl2 will be formed from the if . 1)40 gram of nh4cl?

asked May 15, 2023

1 answer 184k views

Leo's lions has a new zoo project with an intial cost of $394,500 that is expected to generate cash flows of $51,200 for 12 years and a cahs flow of $72, 900 in year 13. if the required return is 9.1 percent,

answered May 2, 2023

1 answer 9.1k views

Determine wether the function f(x)=x+1 / x^2-1 is continuous at x=1

answered Mar 9, 2023

1 answer 188k views

What or who killed old Professor Weiler ? A. Heart attack B. A German solider C. Otto Schiendick D. Cancer

answered Dec 16, 2022

2 answers 193k views

*Will give 40 points!!* The data on the box plot describes the weight of several students in sixth grade. Which of the following statements are true about the data set? Select all that apply. A. The median

answered Nov 10, 2022

2 answers 223k views

The population of the bacteria triples each hour. Initially, there are 20 bacteria in the lab. Find the number of bacteria at the end of 5th hour 1620 4500 4860 5000

answered Nov 7, 2022

1 answer 70.9k views

which is the distance between the point with the coordinates (-2,3) and the line with the equation 6x-y=-3

answered Nov 6, 2022

1 answer 41.4k views

There are two types of cells in the body: regular cells that make up all the organs of the body are known as ______________ cells and the other which contain half the amount of our chromosomes in order

answered Sep 27, 2022

2 answers 6.3k views

How many dog toys weigh 3/8 or 1/2 of a pound

answered Jul 19, 2022

2 answers 105k views

Which mountain is shared by france, italy, and switzerland?

answered May 21, 2022

2 answers 125k views

If x=2,find the value of x²+1/x²

asked May 13, 2022

1 answer 73.6k views

Indica el período, el grupo y el número atómico de los elementos que se representan con las siguientes configuraciones electrónicas: 1. 1s2 Grupo: ______ Periodo: _______ 2. 1s22s22p63s1 Grupo: ______

answered May 1, 2022

1 answer 78.0k views

(8x10^-3)+(2 x 10^-4)

asked Apr 7, 2022

1 answer 107k views

Why Do Some Things Stop While Others Keep Going?

asked Mar 6, 2022

2 answers 129k views

How has GIS changed how we transport ideas?

asked Feb 22, 2022

1 answer 234k views

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