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3 years ago

What is the value of x?

Mathematics

1 answer:

vivado [14]3 years ago

3 0

Answer:

x = 13

Step-by-step explanation:

Split the triangle in to two. The dimensions of each will be 12 x 5 x X.

Use the pythagorean theorem.

h^2 = 144 + 25 = 169

h = sqrt 169 = 13

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Find the 12th term of the arithmetic sequence 2a - b, 3a - 2b, 4a - 3b

Alina [70]

Answer:

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Step-by-step explanation:

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2 years ago

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2. Angela wants to earn about $80.00. If her hourly wage is $3.00, about how many hoursmust she work?

sergejj [24]

Answer:

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Step-by-step explanation:

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2 years ago

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Please show your work and explain it.

Maru [420]

Answer:

$f(x)=\dfrac{x+2}{2(x-2)}$

Step-by-step explanation:

Remember when you divide fractions, you need to get the reciprocal of the divisor and multiply. So your first simplification would be:

$\dfrac{x^2+4x+4}{x^2-6x+8}\div\dfrac{6x+12}{3x-12}\\\\=\dfrac{x^2+4x+4}{x^2-6x+8}\times\dfrac{3x-12}{6x+12}\\\\=\dfrac{(x^2+4x+4)(3x-12)}{(x^2-6x+8)(6x+12)}$

Next we factor what we can so we can further simplify the rest of the equation:

$=\dfrac{(x^2+4x+4)(3x-12)}{(x^2-6x+8)(6x+12)}\\\\=\dfrac{(x+2)(x+2)(3x-12)}{(x^2-6x+8)(6(x+2))}\\\\$

We can now cancel out (x+2)

$=\dfrac{(x+2)(3x-12)}{(x^2-6x+8)(6)}$

Next we factor out even more:

$=\dfrac{(x+2)(3)(x-4)}{(x-2)(x-4)(6)}$

We cancel out x-4 and reduce the 3 and 6 into simpler terms:

$=\dfrac{(x+2)(1)}{(x-2)(2)}$

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$=\dfrac{x+2}{2(x-2)}$

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3 years ago

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Studentka2010 [4]

Answer:

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Step-by-step explanation:

I dont know if your question is complete.

f(x) - g(x)

$(4x^3+6x^2-3x+9)-(x^3-7x^2+2)\\4x^3+6x^2-3x+9-x^3+7x^2-2\\3x^3+13x^2-3x+7$

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2 years ago

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KatRina [158]

The answer is 28 for this equation

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2 years ago