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vova2212 [387]
2 years ago
14

Pls help! Error Analysis problem

Mathematics
2 answers:
Gennadij [26K]2 years ago
7 0

Answer:

Ana made a mistake from line 2 to 3

Step-by-step explanation:

charle [14.2K]2 years ago
6 0

Answer:

Ana made a mistake from line 2 to 3

Step-by-step explanation:

From line 2 to 3, on the left side, ana <u>added</u> 2 and 3 but completely ignored the - in front of the 3. the correct answer would have been<u> -x - 21 = 3x + 19</u>

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If f(x)=7x-7 what is f(8)+f(4)
NARA [144]

<u>Given Function is</u>

  • f ( x ) = 7x - 7 ------- eqn ( 1 )

<u>Now , put the value of x = 8 in eqn ( 1 )</u>

  • f ( 8 ) = 7 ( 8 ) - 7
  • f ( 8 ) = 56 - 7
  • f ( 8 ) = 49 ------- eqn ( 2 )

<u>Now , put the value of x = 4 in eqn ( 1 )</u>

  • f ( 4 ) = 7 ( 4 ) - 7
  • f ( 4 ) = 28 - 7
  • f ( 4 ) = 21 ------- eqn ( 3 )
<h3 />

<u>From eqn ( 2 ) nd eqn ( 3 ) we get,</u>

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7 0
2 years ago
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AfilCa [17]

Answer:

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Step-by-step explanation:

8 0
2 years ago
9x – 1= 10x + 9<br> What is x equal to
ivolga24 [154]

Answer:

-10=x

Step-by-step explanation:

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4 0
3 years ago
Factor out the GCF of the expression:
Leni [432]

Answer:

The GCF of 25 and 35 is 5.

Explanation:

One way to find the GCF is to find the prime factorization of each number. So,

25=52

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Now, we can find all the factors 25 and 35 have in common. We see that 25 and 35 both have a 5, but not 52 because 35 only has one 5.

35 also has a 7, but that is not in the prime factorization of 25, so we do not include it. Since there is only one common factor which is 5, that is our "greatest common factor

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LiRa [457]

Answer:

(3,-9)

Step-by-step explanation:

sorry if its wrong i tried...

8 0
3 years ago
Read 2 more answers
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