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Sever21 [200]
3 years ago
11

Help please I don’t know what to do

Mathematics
2 answers:
Zepler [3.9K]3 years ago
6 0

Answer:

B

Step-by-step explanation:

Combine Like terms

sammy [17]3 years ago
5 0

Answer:

The answer is letter B

Step-by-step explanation

Simply combine like terms in which

-2x^2 + 7x^2 = 5x^2

8x + 4x = 12x

-9 + 2 = 7

So we come up with the answer of the option letter B

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Multiple choice quiz! Who ever answers gets brainliest! Please help answer
Anuta_ua [19.1K]

Answer:

The answer is no.

Step-by-step explanation:

7 0
3 years ago
In the equation x+12=30 does x=16 explain your answer
denpristay [2]
No x does NOT equal 16. you would substitute x for 16 which gives you 16+12. That equals 28 not 30. The correct answer is x=18
4 0
2 years ago
Hiii please help i’ll give brainliest if<br> you give a correct answer and maybe explain thankss
kvasek [131]

Answer:

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2 years ago
Find the angle [OA] makes with the positive x-axis if the x-coordinate of the point A on the unit circle is 0.222
EastWind [94]

By using the concepts of <em>unit</em> circle and <em>trigonometric</em> functions, we find that the angle OA, whose x-coordinate is 0.222, has a measure of approximately 77.173°.

<h3>How to find an angle in an unit circle</h3>

<em>Unit</em> circles are circles with radius of 1 and centered at the origin of a Cartesian plane, which are used to determine angles and <em>trigonometric</em> functions related to them. If we use <em>rectangular</em> coordinate system and the definition of the <em>tangent</em> function, we find that the angle OA is equal to:

\tan \theta = \frac{\sqrt{1 - x^{2}}}{x}

\tan \theta = \frac{\sqrt{1-0.222^{2}}}{0.222}

tan θ ≈ 77.173°

By using the concepts of <em>unit</em> circle and <em>trigonometric</em> functions, we find that the angle OA, whose x-coordinate is 0.222, has a measure of approximately 77.173°.

To learn more on unit circles: brainly.com/question/12100731

#SPJ1

4 0
2 years ago
The number p and 2/3 are additive inverses. Drag and drop 2/3 and p to their correct positions on the number line. Drag and drop
Airida [17]
<span>On the number line, p would be to the left of 2/3. The sum of p and 2/3 equals 0.</span>
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3 years ago
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