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arlik [135]
3 years ago
9

State whether the following sentences are true or false.

Mathematics
1 answer:
Usimov [2.4K]3 years ago
3 0
1 is false, 2 is true, and 3 may be false because the corresponding angles have to be equal and the corresponding sides be proportional. So I don’t know about 3 but 1 and 2 I’m sure of
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Evaluate the expression when n=6<br> n² – 5n-2
eduard

Answer:

4

Step-by-step explanation:

(6^2) -5(6) -2 =4

that is the answer

8 0
3 years ago
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Type the correct answer in the box,
HACTEHA [7]

<u>We'll assume the quadratic equation has real coefficients</u>

Answer:

<em>The other solution is x=1-8</em><em>i</em><em>.</em>

Step-by-step explanation:

<u>The Complex Conjugate Root Theorem</u>

if P(x) is a polynomial in x with <em>real coefficients</em>, and a + bi is a root of P(x) with a and b real numbers, then its complex conjugate a − bi is also a root of P(x).

The question does not specify if the quadratic equation has real coefficients, but we will assume that.

Given x=1+8i is one solution of the equation, the complex conjugate root theorem guarantees that the other solution must be x=1-8i.

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3 years ago
What is m ZDFC?<br><br> O45°<br> O 80°<br> O 125°<br> O 135
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3 years ago
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Combine Like Terms: x^2 + y^2 + 3y^2 + 4x + 2x + 2 + 2
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Answer:

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Step-by-step explanation:

Arranging the terms;

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x^2 + 4y^2 + 4x + 2x + 2 + 2

x^2 + 4y^2 + 6x + 2 + 2

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8 0
3 years ago
What is 8 and 7/12 times 3
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8\frac{7}{12} =  \frac{103}{12}
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3 years ago
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