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mr_godi [17]
3 years ago
6

Solve each system using substitution or elimination. Show all required work. Y=-5x^2+2x-3 Y=-3x-3

Mathematics
1 answer:
zubka84 [21]3 years ago
8 0

Step-by-step explanation:

y = -5x² + 2x - 3 and y = -3x - 3.

=> -5x² + 2x - 3 = -3x - 3

=> 5x² - 5x = 0

=> 5x(x - 1) = 0

=> x = 0 or x = 1.

When x = 0, y = -3(0) - 3 = -3.

When x = 1, y = -3(1) - 3 = -6.

The solutions are (0,-3) and (1,-6).

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Answer:

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3 years ago
An angle measures 12 degrees less than three times its supplement. Find the measure of the angle.
lianna [129]

Ok, so you knnow that for angles to be supplement, they need to equal 180 degrees. So you can create an equation as follows:

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So now you plug in "x=48" into this equation (3x-12) to find the measure of the angle.

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6 0
3 years ago
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ipn [44]

<u>Given</u>:

Given that the radius of the cone is 3 units.

The volume of the cone is 57 cubic units.

We need to determine the height of the cone.

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V=\frac{1}{3} \pi r^2 h

Substituting the values, r = 3 and V = 57, we get;

57=\frac{1}{3} (3.14) (3)^2 h

Simplifying the terms, we get;

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Multiplying both sides of the equation by 3, we get;

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