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Alexus [3.1K]
3 years ago
7

Solve the inequality. -5-3x 2(10+2x) + 3 The solution is

Mathematics
2 answers:
Alekssandra [29.7K]3 years ago
7 0

Answer:

x<=-4

.............................................

alexgriva [62]3 years ago
3 0

Answer:

= -60x- 12x power of 2 -2

Step-by-step explanation:

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The equation y=1/9x relates proportional quantities x and y.
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Answer:

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Step-by-step explanation:

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Find the equation of the line perpendicular to y=−2 that passes through the point (4, −2).
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x = 4

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2 years ago
Read 2 more answers
What are all of the real roots of the following polynomial? f(x) x^4-24x^2-25
Greeley [361]

<u>Answer:</u>

x = ±5

<u>Step-by-step explanation:</u>

We are given the following polynomial function and we are to find all of its real roots:

x^4-24x^2-25

Let y=x^2 so we can now write it as:

y^2-24y-25

Factorizing it to get:

(y^2+y)+(-25y-25)

y\left(y+1\right)-25\left(y+1\right)

\left ( y + 1 \right ) \left ( y - 2 5 \right)

Substitute back y=x^2 to get:

\left ( x^2 + 1 \right ) \left ( x^2 - 25 \right )

\left ( x^2 + 1 \right ) \left ( x + 5 \right ) \left ( x - 5 \right )

The quadratic factor has only complex roots. Therefore, the real roots are x = ±5.

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3 years ago
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After a dilation with a center of (0, 0), a point was mapped as (4, –6) → (12, y). A student determined y to be –2. Evaluate the
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