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insens350 [35]
3 years ago
15

What is the factored form of 2x^2-200

Mathematics
2 answers:
Luden [163]3 years ago
8 0

Answer:

2 (x - 10) (x + 10)

Step-by-step explanation:

Factor the following:

2 x^2 - 200

Factor 2 out of 2 x^2 - 200:

2 (x^2 - 100)

x^2 - 100 = x^2 - 10^2:

2 (x^2 - 10^2)

Factor the difference of two squares. x^2 - 10^2 = (x - 10) (x + 10):

Answer:  2 (x - 10) (x + 10)

tiny-mole [99]3 years ago
6 0

Find the Greatest Common Factor (GCF)

GCF = 2

Factor out the GCF (Write the GCF first. Then, in parentheses, divide each term by the GCF.)

2(2x^2/2 - 200/2)

Simplify each term in parenthesis

2(x^2 - 100)

Rewrite x^2 - 100 in the form; a^2 - b^2, where a = x and b = 10

2(x^2 - 10^2)

Use the Difference of Squares: a^2 - b^2 = (a + b)(a - b)

<u>2(x + 10)(x - 10)</u>

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Answer: 82.5 - x = R sorry if I am wrong

Step-by-step explanation:

1. We know all the angles in a triangle add up to 180 degrees.

<em>180 = x + x + 15 + R</em>

2. Combine like terms

<em>180 = 2x + 15 + R</em>

3. Subtract 15 from both sides

<em>165 = 2x + R</em>

4. Divide both sides by 2

<em>82.5 = x + R</em>

5. Subtract x from both sides

<em>82.5 - x = R</em>

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2 years ago
How do u Solve 2x2 + 2x2 + 2 - 2x2 =
Crank
<span>2x2 + 2x2 + 2 - 2x2 =  4 + 4 +2 -4
                             = 4+2   
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3 years ago
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(Ross, 4.78) A jar contains 4 white and 4 black marbles. We randomly choose 4 marbles. If 2 of them are white and 2 are black, w
KATRIN_1 [288]

Answer:

Step-by-step explanation:

Given

Jar contains 4 white and 4 black marbles

We randomly select 4 marbles out of which 2 are white and 2 are black

Probability that 2 white and 2 black marbles are selected is

P=\frac{^4C_2\times ^4C_2}{^8C_4}

P=\frac{18}{35}

The process is continue for n trails until we choose the correct order

i.e. we have to fail in n-1 trails

For exact n selection Probability is given by

Req.\ Probability=Probability\ of\ failure\ in\ (n-1)\ trials\times Probability\ of\ getting\ exact\ order

=\left ( 1-\frac{18}{35}\right )^{n-1}\times \frac{18}{35}

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Multiply her answer by -6 and see if the result is -108
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!TWELVE POINTS + BRAINLIEST ANSWER! Write the equation for an ellipse with y intercepts (0,-3) and (0, 3) and major axis of leng
Mandarinka [93]

Answer:

x²/25 + y²/9 = 1  or 9x² + 25y² = 225

Step-by-step explanation:

We have two points which is y intercepts (0,-3) and (0,3).

We know that the major axis is 2a and secondary axis is 2b

These two points are vertical top of the ellipse which they give us value of half secondary axis  b = 3

The length of major axis is 2a = 10 => a = 10/2 = 5 => a = 5

The equation of the ellipse is:

x²/a² + y²/b² = 1  or b²x² + a²y² = a²b²

When we replace value of a and b we get:

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x²/25 + y²/9 = 1  or 9x² + 25y² = 225

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