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SOVA2 [1]
3 years ago
12

What is -6+3/4 and how did you get your answer

Mathematics
2 answers:
sashaice [31]3 years ago
4 0

Answer:

-0.75

Step-by-step explanation:

-6 + 3 = -3

-3/4 = -0.75

Debora [2.8K]3 years ago
3 0

Answer:

-5 1/4

Step-by-step explanation:

in this case 6 is negative so u need to subtract 3/4 from it and put a negative sign in front of it

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Find the area of the triangle formed by the origin and the points of intersection of parabolas y=− 1/3 (x−1)^2+8 and y=x^2−2x−3.
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Answer:

The area of the triangle formed by origin, and the points (4,5) and (-2,5) will be 15 sq. units.

Step-by-step explanation:

The two parabolas are y = - \frac{1}{3}(x - 1)^{2} + 8 and y = x² - 2x - 3.

Now, solving those two equations we will get the points of intersection.

So, - \frac{1}{3}(x - 1)^{2} + 8 = x^{2} - 2x - 3

⇒ - (x - 1)² + 24 = 3x² - 6x - 9

⇒ -x² + 2x - 1 + 24 = 3x² - 6x - 9

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Now, points (4,5) and (-2,5) make a straight line parallel to the x-axis at a perpendicular distance of 5 units from origin and its length is (4 - (- 2)) = 6 units.

So, the area of the triangle formed by origin, and the points (4,5) and (-2,5) will be = 0.5 × 5 × 6 = 15 sq. units. (Answer)

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3 years ago
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