Answer:
Step-by-step explanation:
1. 3x2 + 5x - 4 + 6x2 - x + 7
= combining like terms
= 9x2 + 4x + 3
2. 2y2 - 3y + 6 + y2 - 5y - 1 + (-4) + 2y2 - 2y
= 5y2 - 10y + 1
3. 2x2y - 3xy2 + x2y - 4x2y - 2xy2
= - x2y - 5xy2
4. x2 - y2 + 2x2 - 3xy + 4y2 + 3y2 - 5xy - x2
= 2x2 - 8xy + 6y2
5) Regular decagon. 6) Yes.
Number 6 is yes bc the interior angles of a triangle have to equal 180, and 1+2+177 equals 180.
Ok the answer of 6 are 12, 18, 24, 30, 36, 42, and 48. The multiples of 9 are 18,27,36,45,54,63,72,81,90,99,108,117,126,135,144,153,162,171,180,189,198,. Hope it helps!
Howdy! My name is Christian and I’ll try and help you with this question!
Date: 9/28/20 Time: 8:38 pm CST
0
Explanation:
2 -2 = 0 :D
Hope this helps you with your question!
<em>Sincerely, </em>
<em> </em>
<em>Christian </em>
<em />
subtract 24 from both sides
divide both sides by 4
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combine like terms
divide both sides by 6
add 72 to both sides
divide both sides by 9
divide both sides by 8
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Hope this is helpful.
8x7