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Bumek [7]
2 years ago
5

URGENT!! Given the inequality, the test point (2,-8) .... a) b) c) d)

Mathematics
1 answer:
sattari [20]2 years ago
3 0

Answer:

B

Step-by-step explanation:

let's see, I'd the point on the line/boundary ?

for this we use the equality part (and use the coordinates of the point as x and y) :

-8 = 2×2² - 5×2 - 6 = 8 - 10 - 6 = -2 - 6 = -8

correct.

this proves that the point is on the line defined by the equation.

and that means it is on the boundary of the inequality.

because that inequality contains the boundary in the solution region (hence the >= relation instead of just >), we cannot use that point to determine which side of the boundary (incl. the boundary line, but still) is the solution region.

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Answer:

53 cm.

Step-by-step explanation:

Circumference = pi times diameter

We are trying to find diameter so rearrange

Circumference/pi = diameter

166.5/pi = 52.998596

Approximately 53 centimeters of lace

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3 years ago
What are the vertex, axis of symmetry, maximum or minimum value, and range of y = 3x2 + 6x − 1?
Basile [38]

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6 0
2 years ago
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Orlov [11]

The complete sentence for the <em>unit</em> circle is:

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<h3>How to complete a sentence with concepts from trigonometry</h3>

In this problem we have sentence to be completed by direct observation to the variables seen in a unit circle, a form used to teach trigonometric functions in a <em>graphic</em> manner. Now we proceed to present the complete sentence below:

<em>When t = 0, AP = 0, so sin t will begin at a value of 0. As t increases from 0 to π/2, sin t increases. Eventually, when t = π/2, OP will be 0, so sin t = AP will be 1.</em>

To learn more on trigonometric functions: brainly.com/question/6904750

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3 0
2 years ago
Jan is cutting a rectangular pan of brownies.She cut them in half and then cut each of those halves in half again.She did the sa
kumpel [21]
I drew a picture!!
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Maybe you didn't.
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I like to picture things though.
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Ok, a rectangle cut in half. 
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1 x 2 = 2 after cutting the brownies in half.
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2 x 2 = 4 after cutting it in half again.
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4 rectangles now!!
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Doing it the other way... pretend you are starting over from scratch.
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A new batch of brownies!
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But still pay attention to what you already cut. 
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Cut down the middle the other direction.
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What's 4 x 2?
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8.
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Now, finally, we multiply the half of the half brownies.
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What's 8 x 2?
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16.
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16 slices.

7 0
3 years ago
Shape A is congruent to shape blank
bija089 [108]

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Step-by-step explanation:

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3 years ago
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