3 years ago

Solve the following system of equations for all three variables.

Mathematics

1 answer:

Juli2301 [7.4K]3 years ago

7 0

Answer:

Equation 1: x = 5 y/ 2 − 14 and y = 2 x /5 + 28/5

Equation 2: y = 9 + 2 z/ 7 and z = − 63 /2 + 7 y/ 2

Equation 3: y = 7 /3 − 2 z /3 and z = 7/ 2 − 3 y /2

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I'll give brainlisest and thanks, picture below!!

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Answer:

Your answer is A. good luck

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3 years ago

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Simplify the quadratic term by squaring the (x+1) term.

tensa zangetsu [6.8K]

Answer:

y = -2x^2 -4x +1

Step-by-step explanation:

y-3 = -2 (x+1)^2

Foil (x+1)^2

(x+1)(x+1) = x^2 +x+x+1 = x^2 +2x+1

Substitute this back in

y-3 = -2(x^2 +2x+1)

Distribute

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Add 3 to each side

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3 years ago

The Hundred Years' War changed France dramatically. A great sense of national pride emerged among the French people, and they de

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Answer:

Step-by-step explanation:

France developed a strong monarchy

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4 years ago

Find (f-g)(x) if f(x)=3x-5 and g(x)=x2-5x+4

solmaris [256]

Answer:

Step-by-step explanation:

Hello,

$(f-g)(x)=f(x)-g(x)=3x-5-(x^2-5x+4)\\\\=3x-5-x^2+5x-4\\\\=-x^2+8x-9$

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3 years ago

Please find the square roots of the following complex number.

Nana76 [90]

Hey there,

First, find the square root of the given equation.

$\sqrt{z}=\sqrt{81(\text{cos}(\frac{4\pi}{9})+i\text{sin}(\frac{4\pi}{9})}\\=9\text{cos}\frac{1}{2}(2k\pi+(\frac{4\pi}{9}))+i\text{sin}\frac{1}{2} (2k\pi+(\frac{4\pi}{9}))$

Keep in mind that this is solved for k = 0 and 1.

Second, simplify.

$=9\text{cos}(\frac{2\pi}{9})+i\text{sin}(\frac{2\pi}{9})~\text{or}~9\text{cos}(\frac{11\pi}{9})+i\text{sin}(\frac{11\pi}{9})$

Best of Luck!

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3 years ago