Questions by Alexander Knyazev

Questions by Alexander Knyazev

Solve the system of linear equations by substitution. x + 4y = 21 y = −x + 12 the solution to the system is ( , ) answer is an ordered pair

asked Nov 5, 2023

1 answer

21 votes

319k views

Is this correct? And how do I know when it’s reflected over the x or y axis?

asked Sep 21, 2023

1 answer

2 votes

336k views

What is climate change a global worldwide problem explain in terms of Earth atmosphere’s

asked Apr 19, 2023

1 answer

31 votes

103k views

A computer company claims that the lifespan of its batteries is 2.7 years. The population standard deviation is 0.85 years. A sample of 25 batteries was tested, and their mean lifespan was 3.1 years. Using

asked Apr 17, 2023

1 answer

39 votes

57.1k views

These cones are similar. Find the surface area of the smaller cone. Round to the nearest tenth. 3cm 2 cm. Help!!!

asked Jan 20, 2023

1 answer

12 votes

215k views

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