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Katena32 [7]
3 years ago
15

A student writes the equation for a line that has a slope of

Mathematics
2 answers:
forsale [732]3 years ago
5 0

Answer:

  • the problem statement and form fill disagree
  • the arithmetic with -(-8)+8 is erroneous

Step-by-step explanation:

The point-slope form of the equation of a line is ...

  y -k = m(x -h)

for a point (h, k) and a slope m.

The problem statement tells us m=-6 and (h, k) = (2, 8). Putting these values into the form gives ...

  y -8 = -6(x -2)

The first line of "the work" uses -8 instead of 8. We cannot tell if that is an error in the work, or a typo in the problem statement. Either way, they disagree.

__

The last line of "the work" adds -(-8) and +8 to give a result of 0. That is definitely an error, regardless of the above.

_____

<em>Comment on the result</em>

If the problem statement has no typo, the errors cancel and the student ended up with the right equation.

lutik1710 [3]3 years ago
4 0

Answer:

it should be -8

Step-by-step explanation:

because in the equation it shows -(-8) which is a double negative making it a double negative or positive. so you would subtract

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Help Homework.
Ksju [112]

Answer:

1/24

Step-by-step explanation:

5/12 - 3/8=?

The first step is to find a denominator (bottom number) that is the same for both fractions. In this case, 24 works.

10/24 - 9/24 = ?

1/24

8 0
2 years ago
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Sophie has 5 pieces of string that are 4 yards each. She uses 3 pieces that are each 3 feet long. How much string does Sophie ha
stich3 [128]

Alright, lets get started.

Sophie has 5 pieces of string that are 4 yards each.

1 yards = 3 feet,

So, 4 yards = 4 * 3 =12 feet

Total number of string she has = 5 piece

So, total length she has = 5*12 = 60 feet

It means she had 60 feet string in starting.

Now, She uses 3 pieces that are each 3 feet long, means

She uses = 3*3 = 9 feet

So, remaining string length will be = 60 - 9 = 51 feet

Means 51 feet string does Sophie have. : Answer

Hope it will help :)


5 0
3 years ago
Read 2 more answers
The number. Find the nume.
aliya0001 [1]

Answer: 8x+3x=12x+9

The number is -9.

Step-by-step explanation: Combine like terms.

11x=12x+9

Subtract 12x from the other side. 11x-12x= -1x

-1x+9

Divide by -1 to isolate x.

-1/-1 cancels out.

9/-1= -9

x=-9

Plug in -9 to check your answer if you want to double check.

3 0
3 years ago
Help??
julsineya [31]
You would use the equation 

F+V=E+2
3 0
3 years ago
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What is the ratio of one hour to 600 seconds?
Marat540 [252]

Answer:

6:1

Step-by-step explanation:

1 hr= 60 minutes

60 minutes= 3600 seconds

3600:600

36:6

5 0
3 years ago
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