Questions by Cettt

Questions by Cettt

Suppose that A is nonsingular. Prove that its inverse A-1 is unique. [Hint: Show that if there exists two matrices, B and C, such that BA = I and AC −=I, then necessarily B =C.]

asked Jun 26, 2021

1 answer

0 votes

117k views

Stages of global warming

asked May 20, 2021

1 answer

3 votes

60.6k views

Point Q is on line segment PR. Given QR = 3x, PQ = x + 6, and PR = 5x – 4, determine the numerical length of PQ.

asked Mar 19, 2021

1 answer

1 vote

146k views

trapezoid W'X'Y'Z' Is the image of a trapezoid WXYZ under a dilation through point C. What scale factor was using the dilation

asked Mar 10, 2021

2 answers

4 votes

171k views

What was George Washington involved in the start of the French and Indian War

asked Jan 27, 2021

1 answer

2 votes

44.1k views

1.What do taxonomists study? How does this benefit other disciplines of biology? 2.What is a holotype? Why are these extremely useful distinctions for scientists? What does it allow them to evaluate? 3.

asked Aug 21, 2020

1 answer

0 votes

1.4k views

US Labor time line According to the chart, the first successful union was organized in. Federal laws assisting workers in collective bargaining were passed in.

asked Jan 21, 2020

1 answer

4 votes

181k views

What compelled the Grimms to concentrate on old German epics, tales, and literature was a belief that the most natural and pure forms of culture-those which held the community together-were linguistic

asked Aug 8, 2019

2 answers

2 votes

163k views

A biologist observes that a species of stick insects on a remote island has three different color traits, almost equally distributed among the population. One phenotype is dark green, a second is light

asked Dec 6, 2018

2 answers

3 votes

80.2k views

Evaluating an experiment can include identifying things you would do differently if you were to repeat the experiment later

asked Nov 2, 2018

2 answers

3 votes

211k views

If M is the midpoint of LN and LN =27.8 , find the length of MN . A) 13.8 B) 13.9 C ) 14.2 D) 14.5

asked Aug 27, 2018

2 answers

3 votes

16.2k views

Which of the following might be considered the most homogenous culture region? A) Japan B) Kenya C) the Americas D) Europe

asked Apr 21, 2018

2 answers

0 votes

48.2k views

Which technique did the two protesters of the Sardar Sarovar Dam project (Medha Patkar and Narendra Modi) use to gain attention for their protests?

asked Jan 22, 2018

1 answer

2 votes

47.3k views

The result of the Great Compromise was a

asked Jan 19, 2018

2 answers

4 votes

126k views

A square field has an area 121 square meters what is the perimeter of the field

asked Nov 12, 2016

2 answers

1 vote

145k views

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