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lord [1]
3 years ago
13

Will give brainliest!

Mathematics
1 answer:
Ghella [55]3 years ago
3 0
D tethetjwtjwtjwhwtjwtj
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Solve the equation for all real solutions in the simplest form. -5z^2-3z-11=-6z^2
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-3z-11=11z^2

Step-by-step explanation:

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2 years ago
The angles listed from largest to smallest are __________________
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B, A, C

Step-by-step explanation:

That's a 30-60-90 triangle.

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At which points are the tangents drawn to the ellipse x 2 + y 2 = [ a ] x + [ a ] y parallel to
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The given equation of the ellipse is x^2 + y^2 = 2 x + 2 y

At tangent line, the point is horizontal with the x-axis therefore slope = dy / dx = 0

<span>So we have to take the 1st derivative of the equation then equate dy / dx to zero.</span>

x^2 + y^2 = 2 x + 2 y

x^2 – 2 x = 2 y – y^2

(2x – 2) dx = (2 – 2y) dy

(2x – 2) / (2 – 2y) = 0

2x – 2 = 0

x = 1

 

To find for y, we go back to the original equation then substitute the value of x.

x^2 + y^2 = 2 x + 2 y

1^2 + y^2 = 2 * 1 + 2 y

y^2 – 2y + 1 – 2 = 0

y^2 – 2y – 1 = 0

Finding the roots using the quadratic formula:

y = [-(- 2) ± sqrt ( (-2)^2 – 4*1*-1)] / 2*1

y = 1 ± 2.828

y = -1.828 , 3.828

 

<span>Therefore the tangents are parallel to the x-axis at points (1, -1.828) and (1, 3.828).</span>

3 0
3 years ago
Here is a number line<br> Please answer will give brainliest
andreev551 [17]

Answer:

-3<n<=5

Step-by-step explanation:

This is because the coloured circle on the number line means that the number is less than or equal to 5

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Jamila has to purchase a new car and is putting 1 over 3
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I did the work and it's D. i believe
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