Answers by Andrzej Kaczor
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Answers by Andrzej Kaczor

Answers by Andrzej Kaczor
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What is the factored form of the binomial expansion 81x^2 + 144xy + 64y^2? (9x – 8y)^2 (9x + 8y)^2 (3x – 4y)^2 (3x + 4y)^2
answered May 15, 2021
4 votes
13.7k views
The outcome of the hundreds years war
answered Apr 19, 2021
5 votes
162k views
Lakes and oceans are able to stabilize air and land temperatures because
answered Nov 9, 2020
5 votes
27.1k views
A plane at an altitude of 20000 feet starts to descend for landing after flying for six hours. The entire flight time was 6 hours 40 minutes. Determine the average rate of descent of the plane
answered Oct 16, 2020
6 votes
93.9k views
If you buy 15 bags of grass seed which cost $8.29 each, what is the total cost? $87.05 $82.90 $127.50 $124.35
answered Jun 25, 2020
2 votes
146k views
Tori Chang and her cousin, Sumi decide to open an accounting business. They will need a total of $60,000 to get the business started. Sumi has spent a lot of time getting the business set up, so Tori agrees
answered Oct 20, 2019
3 votes
144k views
What is equivalent to 4.321 × 10^−4 ? A) 43210 B) 4321 C) 0.004321 D) 0.0004321
answered Sep 17, 2019
3 votes
185k views
Which equation has solution x = -3? A) 2x - 7 = -1 B) 3x + 8 = 1 C)12x + 8 = 10 D) 1/2(2x - 6) = -6
answered Jul 3, 2019
3 votes
159k views
The hardcover version of a book weighs 7 ounces while its paperback version weighs 5 ounces. Forty-five copies of the book weigh a total of 249 ounces. Which value could replace x in the table?
answered Apr 10, 2019
3 votes
207k views
What deterred many slaves from attempting to escape?
answered Nov 26, 2018
3 votes
225k views
Which is the most accurate description of potassium (K)?
answered Oct 27, 2018
3 votes
11.4k views
What is the mass in grams of a sample of 7.83 x 10^24 atoms of helium?
answered Aug 29, 2018
3 votes
127k views
What is jefferson demanding as he concludes the declaration?
answered Jul 12, 2018
4 votes
169k views
During a lightning storm, the Jones family notices their computer has shut off. When they turn it back on, it functions properly. What should they buy to protect their computer during future lightning
answered Jun 25, 2018
4 votes
117k views
Jack and Nina are graphing two equations on a coordinate grid. Jack has graphed the equation y = 2x. If Nina graphs y = 5x, where will her graph be in relation to the graph Jack made
answered Mar 12, 2018
5 votes
160k views
Ben starts with a certain number of fruit chew packages, he puts 27 packages into each of 85 cases. he has 3 packages left. how many packages of fruit chews did Ben start with? explain how you know.
answered Oct 25, 2017
4 votes
107k views
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