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Whitepunk [10]
3 years ago
11

5x ^ 2 if x equals negative 2

Mathematics
2 answers:
amm18123 years ago
8 0
5(-2)^2
-10^2
100
Negative times a negative is a positive
Lady bird [3.3K]3 years ago
6 0

Answer:

-100

Step-by-step explanation: -10^2

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Step-by-step explanation:

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Which statement best compares a line and a point
Volgvan
A line has 0 endpoints and extends forever in 2 directions and a point has 1 endpoint and extends forever in 0 directions.
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3 years ago
On a unit circle, the vertical distance from the x-axis to a point on the perimeter of the circle is twice the horizontal distan
zalisa [80]

Answer:

(2√5)/5

Explanation:

CHECK THE ATTACHMENT BELOW FOR DETAILED EXPLATION

From the question we can deduced that the vertical distance from the x-axis to a point on the perimeter of the circle is twice the horizontal distance, we can say that the y-coordinate, is twice of the horizontal, then let call the horizontal "y", the vertical would be 2y.

from the attachment the question on the unit circle is interpreted using a figure,then, hypotenuse was first calculated

4 0
2 years ago
Solve 2x2 + 8x + 10 = 0. using this model to he<br> X =<br> -b+ ✓ 62 - 4ac<br> 2a
Lesechka [4]

Answer:

x can have two complex solutions, which are:

-2 + i

-2 - i

Step-by-step explanation:

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4x² + 16x + 20 = 0

4x² + 16x + 16 = -4

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2x + 4 = √-4

2x =  -4 ± i√4

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x = -2 ± i

So x is equal to -2 + i and -2 - i.

8 0
3 years ago
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