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Marizza181 [45]
3 years ago
15

If the point (x,square root 3/3) is on the unit circle, what. is x? A) 2/3

Mathematics
1 answer:
NeX [460]3 years ago
6 0
If the point is on the unit circle:
x² + (√3/3 )² = 1²
x² + 3/9 = 1
x² + 1/3 = 1
x² = 1 - 1/3
x² = 2/3    / √
x = √2/√3  · √3/√3   = √6 / 3
Answer: A ) square root (6) / 3 
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olganol [36]

Answer:

(x - 2)^2 + (y - 2)^2 = 3

Step-by-step explanation:

The centre point of the circle is the value for x and y

And the radius is the distance from the centre to the circumference.

5 0
3 years ago
What is -4R-2r+5 as a simpler exspression
enyata [817]
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But if you meant to say \sf-4r-2r+5, we would combine the first two terms.

Adding/subtracting like terms is the same as adding/subtracting whole numbers.

\sf-4-2=-6

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\sf-4r-2r=-6r

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\boxed{\sf-6r+5}
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3 years ago
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The segments shown below could form a triangle.
jonny [76]

Answer:

TRUE

Step-by-step explanation:

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7 0
2 years ago
What is the equation of a line that is parallel to the line x=-2and passes through the point (-5, 4)?
Nimfa-mama [501]
First, it is important to understand that any equation that is x=some number is just a vertical line that hits the x-axis at the given number. For example, x=-2 would be a vertical line hitting the x-axis at -2. Therefore, the line we are trying to identify would also be vertical (and have the form x=some number) because we know the lines are parallel. Then, since we're given the point (-5,4), we know the line needs to hit the x-axis at -5, therefore the equation would be x=-5.

I hope this helps.
6 0
3 years ago
00 PM
Svetllana [295]

Answer:

0.67

Step-by-step explanation:

To solve this we are going to use this lovely equation

P%•X=Y

Y is our end product

X in this case is 45

and P% is our percent

Now let's multiply 4% which becomes .004 by 45 and we get 1.8 which since there isn't 1.8 in American currency that becomes $1.80

We do the same process with the 2.5

0.025•45=1.125

Again not in the American currency so we will round 5 up and now we have $1.13

Now we subtract 1.80-1.13 which gets us 0.67 cents.

Hope I was helpful,

Your friendly neighborhood struggling student

Toodles

3 0
3 years ago
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