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Leno4ka [110]
4 years ago
11

Identify the terms for the expression: 21x3 + 3x2 - 14x + 9x2 + 15x

SAT
2 answers:
Mashutka [201]4 years ago
5 0
The person above me is correct ;)
irina1246 [14]4 years ago
4 0

Answer:

66 + 6 - 14x + 18 + 15x

Collect like terms

66 + 6 + 18 = 90

-14x + 15x = x

x + 90

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• Area of a wall: Multiply the width of the wall by its height. So one of the walls is 80 square feet (10 feet wide x 8 feet high) and the other is 96 square feet (12 feet x 8 feet). If you need the total square footage of the walls - for figuring paint or wallpaper for example - you can simplify the calculation by first adding all the wall lengths together, then multiplying by the height (10 + 12 + 10 + 12 = 44 x 8 = 352 square feet of total wall area).

• Area in square yards: There are 3 feet in a yard, so there are a total of 9 square feet in a square yard (3 x 3). To calculate the number of square yards in our example room, which you might want to do when ordering carpet, divide the total square footage of the floor by 9 (120 square feet / 9 = 13.33 square yards).

•Area in square inches: There are 12 inches in a foot, so there are 144 square inches in a square foot (12 x 12). To convert an area from square feet into square inches, simply multiply by 144. (Our room has 17,280 square inches).

Explanation:

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3 years ago
What is the independent variable in this graph?
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Need to see what it’s talking about
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3 years ago
approximately how much more energy is released in an earthquake of richter magnitude 6.5 than in a magnitude 5.5 earthquake?
Romashka [77]

Approximately  32 times much more energy is released in a 6.5 Richter magnitude earthquake than in one with magnitude 5.5 earthquake

  • The Richter magnitude scale is simply used to rate or measure the energy that is sent off/released. It is not a straight measure.  Richter magnitude is commonly defined as a measure used in knowing the amount of energy released in course of an earthquake. Richter Scale was known to be developed by Charles F. Richter in 1934.
  • The above form of earthquake-magnitude scale was said to be invented by Richter and also means a magnitude 6.5 earthquake of Richter produces 32 times more energy or is 32 times stronger than a magnitude 5.5 earthquake

From the above, we can therefore say that the answer Approximately  32 times much more energy is released in a 6.5 Richter magnitude earthquake than in one with magnitude 5.5 earthquake is correct

Learn more from:

brainly.com/question/4221572

8 0
2 years ago
Tyler answered 26 of 40 test questions correctly. What percent did he answer correctly?.
wariber [46]

Answer:

26 of 40 so you need to multiply 40X65% = 26 so 65% is the answer

4 0
3 years ago
Read 2 more answers
A student releases a ball from 1. 5m from the floor. Which statement best describes the energy of the ball as it falls?
Zanzabum

Answer:

Its potential energy is changed to kinetic energy

Explanation:

6 0
3 years ago
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