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2 years ago

Is xy= 60 a direct variation or inverse variation

Mathematics

1 answer:

kirill115 [55]2 years ago

4 0

Answer:

<h2>Inverse variation</h2>

Step-by-step explanation:

Direct variation:

$\dfrac{y}{x}=constant$

Inverse variation:

$xy=constant$

We have

$xy=60$

it's an inverse variation.

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3 years ago

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Answer:

Final answer is c=-7.

Step-by-step explanation:

Given equation is $0=-x^2+4x-7$ .

Now question says that Misha wrote the quadratic equation 0=-x2+4x-7 in standard form. Now we need to find about what is the value of c in her equation.

We know that standard form of quadratic equation is given by $ax^2+bx+c=0$ .

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3 years ago

If sec theta = - √30 / 3, find cos theta.<br> if sin(-theta) = -0.97, find cos (π/2 - theta).

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Step-by-step explanation:

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Note that

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3 years ago

What is the solution of the system of equations that contains the equation - 3x - 9y = 18 and the equation of the line shown on

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Answer:

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Step-by-step explanation:

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In ∆ABC the angle bisectors drawn from vertices A and B intersect at point D. Find m∠ADB if: m∠C=130°

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Answer:

m∠ADB = 155°

Step-by-step explanation:

m∠ADB = (m∠C)/2 + 90° = 130°/2 + 90°

m∠ADB = 155°

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Reference brainly.com/question/17443119 for the derivation.

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