2 answers:
Answer:
-4x^2+5x-28
Step-by-step explanation:
Expand -7(x^2 +4) = 3x^2+5x-7x^2-28
Simplify 3x^2+5x-7x^2-28 = -4x^2+5x-28
Answer: -4x² + 5x - 28
Step-by-step explanation:
<u>Given expression</u>
3x² + 5x - 7 (x² + 4)
<u>Expand parentheses and apply the distributive property</u>
=3x² + 5x - 7x² - 28
<u>Combine like terms</u>
=(3x² - 7x²) + 5x - 28
=
Hope this helps!! :)
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Answer:
Step-by-step explanation:
Zjuaaua
0.02% would be of choosing a blue and a yellow card because there 16 cards so you are only choosing two cards
A + c = 158......a = 158 - c
9.90a + 5.50c = 1265
9.90(158 - c) + 5.50c = 1265
1564.20 - 9.90c + 5.50c = 1265
- 4.40c = 1265 - 1564.20
-4.40c = - 299.20
c = -299.20/-4.40
c = 68 <=== 68 child tickets sold
Answer: c
Step-by-step explanation:
