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Neko [114]
4 years ago
10

What number would you add to both sides of x2 + 7x = 4 to complete the square?

Mathematics
1 answer:
Nata [24]4 years ago
8 0

Answer:

12.5

Step-by-step explanation:

(7/2) = 3.5

(3.5)^2 = 12.5

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Factorize<br>please <br>help<br>me <br><br><img src="https://tex.z-dn.net/?f=a%20%7B%7D%5E%7B2%7D%20%20-%204b%20%7B%7D%5E%7B4%7D
Vsevolod [243]

Answer:

(a+2b^{2} )(a-2b^2)

Step-by-step explanation:

You have what is called "perfect squares" so you can use the "difference of squares formula to factor:

a^2-b^2=(a+b)(a-b)

So,

a^2-(2b^2)^2

you can work the equation backward now and you will get your original equation.

8 0
3 years ago
2. It’s time for Ronda to start repaying her student loans, which are amortized over the next 10 years. Her first month’s paymen
grigory [225]

Based on the amount that she paid in the first month, the amount Ronda will pay for the next month is<u> $396.</u>

When a loan is amortized, it means that one can pay it off by paying the same amount every period until they would have paid off both the loan and the associated interest.

The amortized amount contains:

  • A portion going towards the principal(debt )
  • A portion going towards the interest accumulated.

In conclusion, as the amount is the same every time, Ronda will have to pay the same amount of $396 the next month.

<em>Find out more at brainly.com/question/12256592. </em>

7 0
3 years ago
Use the diagram to find the value of "x" so that △AOC ≅ △ZFD by HL.
astra-53 [7]

Answer:

x= 19

Step-by-step explanation:

Is given that the <u>triangles are congruent</u> so the corresponding sides are congruent as well.

Also congruent sides are equal in measure so we use the given picture to write the equality.

2x -1 = 37, add 1 to both sides

  2x = 38 , divide both sides by 2

    x = 19

8 0
3 years ago
Helppppppp................
GarryVolchara [31]
16 hope this helps you
5 0
4 years ago
( (-3/4)5)2 simplified
lbvjy [14]

Answer:

3 4/5

Step-by-step explanation:

7 0
2 years ago
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