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bearhunter [10]
3 years ago
13

Which is the correct form of the quadratic formula? A) x = b ± b2 - 4ac a B) x = b ± b2 - 4ac 2a C) x = - b ± b2 - 4ac a D) x =

- b ± b2 - 4ac 2a
Mathematics
1 answer:
ozzi3 years ago
5 0
Hello!

The quadratic formula is 

x =  \frac{-b +-  \sqrt{ b^{2}-4ac }  }{2a}

So the answer is D

Hope this helps!
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I need help fast! This is polynomials help
antiseptic1488 [7]

Answer:

  • incorrect
  • correct
  • incorrect

Step-by-step explanation:

A + B = (-4x^2 +2x -5) +(3x^2 +6) = x^2(-4+3) +x(2) +(-5+6) = -x^2 +2x +1

  The given sum is Incorrect.

__

A - C = (-4x^2 +2x -5) -(-5x -4) = -4x^2 +x(2+5) +(-5+4) = -4x^2 +7x -1

   The given difference is Correct.

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B + C = (3x^2 +6) +(-5x -4) = 3x^2 -6x +2

  The given sum is Incorrect.

5 0
3 years ago
A point moves in the plane in the following sequence.
dem82 [27]

Answer:

D

Step-by-step explanation:

The answer is point D(-2,1).

1. If the point D was moved down 2 units, then its coordinates became (-2,-1).

2. If point (-2,-1) was reflected over the x-axis, then its coordinates became (-2,1).

3. If the point (-2,1) was moved 4 units to the right, then its coordinates became (2,1).

4. If point (2,1) was reflected over y-axis, its coordinates became (-2,1).

4 0
3 years ago
Given that a = 4.8 × 104 and that b = 8 × 10−3
Paha777 [63]

Answer:

3.84 * 10^0

Step-by-step explanation

Given the following values;

a = 4.8 × 104 and that b = 8 × 10−3

We are to find the product ab

ab = (4.8 × 10^4)(8 × 10^−3)

ab = (4.8*8)(10^4 * 10^-3)

ab = 38.4 * 10^(4-3)

ab = 38.4 * 10^-1

ab = 3.84 * 10 * 10^-1

ab = 3.84* 10^0

<em>Hence the product in standard form is expressed as 3.84 * 10^0</em>

8 0
3 years ago
Define nature<br><br><br><br><br>have a great day ​
Rashid [163]

Answer:

<u>Nature</u> : The phenomena of the physical world collectively, including plants, animals, the landscape, and other features and products of the earth, as opposed to humans or human creations. (according to Oxford Dictionary)

7 0
3 years ago
Is the sequence 2, 4, 8, 16, ... arithmetic? If so, find the common difference.
4vir4ik [10]

Answer:

First of all it's a geometric sequence and it is multiplying 2 every time

Step-by-step explanation:

2*2=4

4*2=8

8*2=16

8 0
2 years ago
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