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valentinak56 [21]
3 years ago
8

What is the value of n for the equation 1n+4n+16n2−6n=4n−6?

Mathematics
2 answers:
bonufazy [111]3 years ago
5 0
N is negative 2 over 9 or -2/9

goblinko [34]3 years ago
5 0

1n + 4n +16n^2 -6n = 4n -6

16n^2 -n = 4n -6

16n^2 -n - 4n + 6 =0

16n^2 -5n+6 =0

Now we have the forula for finding n

n = -b+-\sqrt{b^{2} - 4ac}/2a

n = -(-5)+-\sqrt{(-5)^2 - 4*16*6 }/ 2.16

n = 5 +-\sqrt{359}/32

n = {5 +/- 359i }/32

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Step-by-step explanation:

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6 0
3 years ago
5+3×=6+2×what's this ​
Nutka1998 [239]

First combine like terms ( x's go with x's), so subtract 2x to both sides and you get:

5+ (3x-2x) = 6 + (2x-2x)

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(5-5) + x = (6-5)

x = 1

Hope this helped!

8 0
3 years ago
Mattie is making a collar for her dog. She needs to buy some chain,a clasp, and a name tag. She wants the chain to be 40 centime
Fantom [35]

Answer:the total cost of the collar is $5.11

Step-by-step explanation:

To make a collar for her dog, she needs to buy some chain,a clasp, and a name tag.

The length of the chain that she wants to buy is 40 centimeters.

1000 centimeters = 1 meter

40 centimeters = 40/1000 = 0.04 meters.

One meter of chain costs $9.75. Therefore, 0.04 meters of chain would cost

0.04 × 9.75 = $0.39

The clasp is $1.29 and the name tag is $3.43. Therefore, the total cost of the collar would be

0.39 + 1.29 + 3.43 = $5.11

8 0
3 years ago
Find the value of c. 64 32 5c+2 C​
Dmitry [639]

Answer:

c = 6

Step-by-step explanation:

(I'm going to call the unidentified inner angle Henry, 'kay?)

First, we need to find Henry.

64 + Henry = 180

(64 - 64) + Henry = (180 - 64)

Henry = 116

Now to c.

Henry + 32 + 5c + 2 = 180

(116 + 32 + 2) + 5c = 180

(150 - 150) + 5c = (180 - 150)

5c/5 = 30/5

c = 6

5 0
4 years ago
Answer the 3 questions above (in the picture) please!!!
Karo-lina-s [1.5K]

Answer:

1. X = 17/A  --- answer is (A)

2.  (6, 0.7) (10, 1.9)

3. $10.99D + $9.99  ≤ $100

Step-by-step explanation:

1. AX + 4AX = 51 + 2AX

 5AX = 51 + 2AX .... -2AX both side

3AX = 51   .. divide 3A

X = 17/A  --- answer is (A)

2. 10y = 3x -11

   (2, 0.5):       3*2 -11 = - 5     10y = 10*0.5 = 5    ..... not correct

    (4, 1)            3*4 - 11 = 1       10y = 10*1 = 10 ....... not correct

   (6, 0.7)        3*6 - 11 = 7       10y = 10*0.7 = 7  .....Correct

   (8,2.3)          3*8 -11 = 13       10y = 10*2.3 =23   ..... not correct

   (10, 1.9)        3*10 -11 = 19       10y = 10*1.9 = 19   .... correct

3.  1D cost $10.99

    D piece cost: $10.99D

     Shipping: $9.99

    No more than $100: ≤ 100

D piece DVD + Shipping withtotal no more than $100:

$10.99D + $9.99  ≤ $100

 

5 0
3 years ago
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