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docker41 [41]
3 years ago
5

Olga simplifies the expression x + 7x to 7x2. Use the drop-down menus to complete the statements below to explain why Olga's sol

ution is correct or incorrect.
Mathematics
2 answers:
V125BC [204]3 years ago
7 0

Answer:

Olga's solution is incorrect. x + 7x is the same as 1x+7x. 7x2 is the same as7x × x . x + 7x simplifies to 8x.

Step-by-step explanation:

Tcecarenko [31]3 years ago
3 0

Answer: Olga's solution is incorrect

x + 7x is the same as 1x + 7x

7x2 is the same as 7x. x

x + 7 x simplifies to 8x


Step-by-step explanation:


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6 0
3 years ago
Hat is the solution to the equation 3/3(4c + 16)=2c+9 ?<br><br> c =
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If it is \frac{3}{3(4c+16)}=2c+9, go to AAAAAA
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\frac{3}{3(4c+16)}=2c+9
\frac{1}{4c+16}=2c+9
times 4c+16 to both sides
1=(2c+9)(4c+16)
distribute
1=8c^2+68c+144
minus 1 both sides
0=8c^2+68c+143
use quadratic formula
c=\frac{-17- \sqrt{3} }{4} or \frac{-17+ \sqrt{3} }{4}




BBBBBBBBBBBB
(3/3)(4c+16)=2c+9
1(4c+16)=2c+9
4c+16=2c+9
minus 2c both sides
2c+16=9
minus 16 both sides
2c=-7
divide both sides by 2
c=-7/2
c=-3.5





if it is \frac{3}{3(4c+16)}=2c+9,
c=\frac{-17- \sqrt{3} }{4} or \frac{-17+ \sqrt{3} }{4}


if it is (\frac{3}{3})(4c+16)=2c+9, c=-3.5



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Step-by-step explanation:

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