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4 years ago

What is the meaning of preimage

Mathematics

1 answer:

Alinara [238K]4 years ago

6 0

Answer:

The set of arguments of a function corresponding to a particular subset of the range.

Step-by-step explanation:

mark me as brainliest pls :)

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Step-by-step explanation:

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4 years ago

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1. What is the volume of the following cone? * 2.5 mm 1 12.6 mm 1

mafiozo [28]

Answer: V=πr2h 3

=π·2.52·12.6 3

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Step-by-step explanation:

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3 years ago

Simplify 2(3-2i)+5(1+i)

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4 years ago

Using the following equation, find the center and radius of the circle. You must show all work and calculations to receive credi

adoni [48]

Answer:

$r = 4$

The center is:

(2, -4)

Step-by-step explanation:

We have the following equation

$x^2 - 4x + y^2 + 8y = -4$

The general equation of a circle has the following form

$(x-h)^2 + (y-k)^2 = r^2$

Where r is the radius and the point (h, k) is the center of the circle

To transform the given equation in the general equation of a circumference we must use the method of square completions

Step 1

$(x^2 - 4x) + (y^2 + 8y) = -4$

Step 2

Add and subtract $(\frac{b}{2})^2$ For an equation of the form

$ax^2 +bx +c$

$(x^2 - 4x +4)-4 + (y^2 + 8y +16) -16= -4$

Step 3 Factor the expressions within the parentheses

$(x-2)^2-4 + (y+4)^2 -16= -4$

Step 4 Simplify

$(x-2)^2 + (y+4)^2= -4+16+4$

$(x-2)^2 + (y+4)^2= 4^2$

Finally

$r = 4$

The center is:

(2, -4)

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3 years ago

Kelvin went skiing with his family. They kept track of how long they each skied without falling. The table lists the longest tim

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Kelvin did not skied without falling more than twice as long as anyone else in his family.

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2 years ago

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