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Andrei [34K]
2 years ago
11

Evaluate the expression; |x+2|\x+2​

Mathematics
1 answer:
NikAS [45]2 years ago
6 0

Answer: |x+2|={x+2;x≥−2−(x+2)

Step-by-step explanation:

: The absolute value function |x+2| can be defined as the piecewise function.

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Which of the following is a solution of x2 + 2x + 4?
ivolga24 [154]
Strictly speaking, x^2 + 2x + 4 doesn't have solutions; if you want solutions, you must equate <span>x^2 + 2x + 4 to zero:

</span>x^2 + 2x + 4= 0.  "Completing the square" seems to be the easiest way to go here:

rewrite   x^2 + 2x + 4  as   x^2 + 2x + 1^2 - 1^2 = -4, or
                                              (x+1)^2 = -3
or                                            x+1 =i*(plus or minus sqrt(3))

or                                            x = -1 plus or minus i*sqrt(3)

This problem, like any other quadratic equation, has two roots.  Note that the fourth possible answer constitutes one part of the two part solution found above.
3 0
3 years ago
Please help with this simple question!!!
strojnjashka [21]
456- 12= 444
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7 0
3 years ago
62.52=27.39+t this is 7th grade math! plsss help!!1
Tju [1.3M]

Answer:

Hope it helps you friend

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6 0
3 years ago
Write the standard form of the equation of the circle with the given characteristics.
SOVA2 [1]
<h2><u>Circle Equations</u></h2>

<h3>Write the standard form of the equation of the circle with the given characteristics.</h3><h3>Center: (0, 0); Radius: 2</h3>

To determine the equation of a circle, use the standard form of a circle (x - h)² + (y - k)² = r² where,

  • <u>(h, k)</u> is the center; and
  • <u>r</u> is the radius

Substitute the values of the center and radius to the standard form.

<u>Given:</u>

<u>(0, 0)</u> - <u>center</u>

<u>2</u> - <u>radius</u>

  • (x - h)² + (y - k)² = 2²
  • (x - 0)² + (y - 0)² = 4
  • x² + y² = 4

<u>Answer:</u>

  • The equation of the circle is <u>x² + y² = 4</u>.

Wxndy~~

7 0
2 years ago
Please help me with this question.. { 8th Grade Math} I don't need an explanation just the answers.
xz_007 [3.2K]

Answer:

45 degrees

2 units

Step-by-step explanation:

A rotation is an Isometry so therefore the 45-45-90 Triangle is the exact same size and shape after the rotation.

3 0
3 years ago
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