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2 years ago

What is the equation of the axis of symmetry of the parabola y=-2x^2+8x-7? x=.....

Mathematics

1 answer:

guapka [62]2 years ago

4 0

Answer:

Equation of axis of symmetry is x = 2

Step-by-step explanation:

The equation of the parabola is given as;

y = -2x² + 8x - 7

The equation of the axis of symmetry is given by;

x = -b/2a

In the parabola equation given and using letters of quadratic equation, we can say that;

a = - 2

b = 8.

c = -7

Thus;

x = -b/2a = -8/(2 × - 2)

x = 8/4

x = 2

Equation of axis of symmetry is x = 2

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3 years ago

In ΔQRS, the measure of ∠S=90°, RQ = 13, SR = 12, and QS = 5. What ratio represents the tangent of ∠Q?

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Answer:

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3 years ago

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Orlov [11]

Answer:

Step-by-step explanation:

So, to start answering this, lets recall the formula for a rectangles volume:

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Lets plug in what we know, and solve for the missing variable.

We know that height(h) is 7.

We know that width(w) is 9.

We know that volume(V) is 378.

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So:

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To do this, we must get rid of the 7 and 9.

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Answer:

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Hope this helps!

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3 years ago

The volume of this cylinder is 175 cubic units.

PSYCHO15rus [73]

Answer:

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2 years ago

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If you are simply looking for the calculator result, you will get $22.36$

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3 years ago

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