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Alina [70]
3 years ago
5

If using the method of completing the square to solve the quadratic equation x^2+17x+12=0x 2 +17x+12=0, which number would have

to be added to "complete the square"?
Mathematics
2 answers:
Ronch [10]3 years ago
7 0

Answer:

(x+7/2)=1/4​

Step-by-step explanation:

I got it on Khan Academy, trust me. It's right. I got it wrong because of the other answer here, so your welcome, but this is the correct answer, Khan Academy people.

umka2103 [35]3 years ago
6 0

Answer:

289/4

Step-by-step explanation:

x² + 17x + 12 = 0

x² + 17x = -12

Take half of the second coefficient, square it, then add the result to both sides.

(17/2)² = 289/4

x² + 17x + 289/4 = -12 + 289/4

(x + 17/2)² = 241/4

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Answer:

Wite the PM tuntipn used. D. 054/9/12, 3600,- (T-

119013

b. What mortgage amount can she borrow? $ 120,000

Step-by-step explanation:

3 0
3 years ago
2. Evaluate each function at the specific value
Oliga [24]
F(6) says “take f(x) = -4x + 11 and put 6 in for every x-value and then clean it up.”

f(6) = -4(6) + 11
     
      = -24 + 11

      = -13


f(x) = -1 says “set your function equal to -1 and solve for x”

    f(x) = -1

-4x+11 = -1

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So f(3) = -1.
8 0
3 years ago
Dry dog food is sold for $9.79 for a 5 pound bag. Dylan bought the bag of dog food to feed his 4 puppies for the next month. If
kotegsom [21]

Answer:

5÷4=1,25

each puppy will get 1,25 pound of dry dog food.

6 0
3 years ago
Evaquate<br>-18÷3×8(-8)\-5×-2+(-2)​
MArishka [77]

Answer:

-12/5 - 2

Step-by-step explanation:

-18÷3×8(-8)/-5×-2+(-2)​ =

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-48(-8)/-5×-2+(-2)​ =

6/-5×-2+(-2)​ =

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4 0
3 years ago
Read 2 more answers
Quick sell outlet sold a total of 40 televisions, each of which was either a model p television or a model q television. each mo
saw5 [17]

Answer:

The number of the television sets that is model p is 12

Step-by-step explanation:

Here we have total number of television sold = 40

The model p televisions sold for $30 less than the model q televisions

That is $P = $q - $30

Therefore

Let the quantity of the model p sold be X

Let the quantity of the model q sold be X

Therefore

x + y = 40

Total cost of the television = 40 * 141 = $5640

Therefore, 120*x + 90*y = 5640

Plugging in x = 40 - y in the above equation we get

4800 - 30y = 5640 or

y   = -28 and

x = 68

If we put y = 40 - x we get

30x + 3600 = 5640  

If we put

120*x + 150*y = 5640.........(3)

we get

x = 12 and y = 28

Therefore, since the model p sold for $30 less than the model q, from the solution of equation (3) the number of the television sets that is model p = 12

3 0
3 years ago
Read 2 more answers
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