Questions by Ivan Burnaev

Questions by Ivan Burnaev

If A=[aᵢⱼ] is a square matrix of order 2 such that aᵢⱼ={1 when i≠j {0 when i=j , then A² is: A. [ 1 0 ] [ 1 0 ] B. [ 1 1 ] [ 0 0 ] C. [ 1 1 ] [ 1 0 ] D. [ 1 0 ] [ 0 1 ]

asked Aug 18, 2024

1 answer

4 votes

212k views

Solve the radical equation √2-√36 - 2x = 6. Check for extraneous solutions. The solution is | The extraneous solution is Enter the real solution first followed by the extarneous solution separated by a

asked Apr 21, 2024

2 answers

3 votes

1.3k views

Fluoride that is ingested in water, food, beverages, or supplements is known as:

asked Apr 6, 2024

1 answer

3 votes

39.7k views

"The following reaction is used to generate hydrogen gas in the laboratory. If 243 mL of gas is collected at 25°C and has a total pressure of 745 mm Hg, what mass of hydrogen is produced? A possibly useful

asked Feb 14, 2024

2 answers

1 vote

128k views

Question 2 of 13To graph the inequality y < 2x-1, you would draw a dashed line.A. TrueB. False

asked Sep 4, 2023

1 answer

3 votes

71.8k views

What is an equation of the line that passes through the points (-1, 7)and (1,−3)?

asked Jul 24, 2023

1 answer

0 votes

186k views

Solve the equation for the given variable. justify each step. 9x + 2y = 5; y 1/15s - 2/3t = -2; s

asked May 14, 2023

1 answer

2 votes

159k views

it won't let me put the story and not all the questions but if someone knows the answer please tell me…

asked May 14, 2023

1 answer

13 votes

158k views

Analysis? the data recorded in the experiment supports the hypothesis about how algae reproduce?

asked Nov 26, 2022

1 answer

5 votes

118k views

Carlos bought the items shown in the table. What was the total cost, not including tax?

asked Aug 22, 2022

1 answer

13 votes

122k views

Two circles have a scale factor of 3:2. What is the ratio of the circumferences of these circles? A. 12:26 B. 13:12 C. 9:4 D. 3:2

asked Aug 2, 2022

1 answer

3 votes

94.1k views

An economy that is based on one good what?

asked May 12, 2022

1 answer

1 vote

155k views

Mr. Tang gives a math test worth 90 points that contain 25 questions. Multiple-choice questions are worth 3 points and word problems are worth 4 points. How many of each type of question are there?

asked Apr 10, 2022

1 answer

7 votes

89.9k views

Define the 2nd amendment

asked Feb 19, 2022

1 answer

4 votes

207k views

Bañar es imperativo o infinitivo

asked Jan 11, 2022

2 answers

2 votes

64.5k views

A restaurant has a sign by the front door that says, “Maximum occupancy: 75 people.” Answer each question and explain or show your reasoning. What percentage of its capacity is 9 people? What percentage

asked Dec 10, 2021

1 answer

2 votes

179k views

Two brothers have X‑linked red–green colorblind vision, and their parents have normal color vision. The first brother's karyotype is 47,XXY (Klinefelter syndrome), and the second brother's karyotype is

asked Nov 21, 2021

1 answer

2 votes

23.1k views

Which of these can be found in a plant cell but not in an animal cell?

asked Nov 13, 2021

1 answer

0 votes

108k views

What are the two supporting evidence of seafloor spreading theory?

asked Oct 3, 2021

1 answer

1 vote

59.0k views

alan bought 3 pencils and a notebook. the notebook cost $6, and he spent a total of $12. how much did each pencil cost?

asked Sep 3, 2021

1 answer

5 votes

58.6k views

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