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3 years ago

Nick has a bag of marbles. Without looking in the bag, he

Mathematics

2 answers:

krek1111 [17]3 years ago

5 0

Answer:

12/25

Step-by-step explanation:

Ulleksa [173]3 years ago

4 0

Answer:

Step-by-step explanation:

Ok wait. Try add

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I need to use Multi-Step function inverse to find the following:

dexar [7]

<u>Answer</u>:

$f^{-1}(x) = \sqrt[5]{\frac{x+7}{9} -10}$

<u>Explanation</u>:

given : f(x) = 9( $x^5$ + 10 ) - 7

replace x and y with each other.

x = 9( $y^5$ + 10 ) - 7

solve for y

x + 7 = 9( $y^5$ + 10 )

( $y^5$ + 10 ) = $\frac{x + 7}{9}$
$y^5$ + 10 = $\frac{x + 7}{9}$

$y^5$ = $\frac{x + 7}{9}$ - 10

y = $\sqrt[5]{\frac{x+7}{9} -10}$

Therefore,

$f^{-1}(x) = \sqrt[5]{\frac{x+7}{9} -10}$

5 0

2 years ago

For each of the following functions, determine if they are injective. Also determine if theyare surjective. Also determine if th

timurjin [86]

Answer:

Check below

Step-by-step explanation:

1. Definition for intervals

$(a,b)=\left \{ x\in\Re : a$

2. Functions

1) $\Re \rightarrow \Re \\ f(x)=x$

Let's perform graph tests.

That's an one to one, injective function. Look how any horizontal line touches that only once. Also, It's a surjective and a bijective one.

2) $\Re\geq0\rightarrow\Re , f(x)=x+1\\$

Injective, surjective and bijective.

Injective: a horizontal line crosses the graph in one point.

3) $f:\Re\geq 0\rightarrow\Re, f(x) = cos(x)$

The cosine function is not injective, bijective nor surjective.

4) $f:\Re\rightarrow\Re \:f(x)=ex$

Since e, is euler number it's a constant. It's also injective, surjective and bijective.

5) Quite unclear format

$6) \:f:\Re\rightarrow(0,\infty), f(x) =ex$

Despite the Restriction for the CoDomain, the function remains injective, surjective and therefore bijective.

$7) f:\Re\geq 0 \rightarrow \Re\geq0, f(x) =x^{4}$

Not injective nor surjective therefore not bijective too.

$8).f:\{-1,2,-3\}}\rightarrow \{1,4,9\}, f(x) =x^{2}$

$f(-1)=1, f(2)=4, f(-3)=9$

Injective (one to one), Surjective, and Bijective.

$10) f:\Re\geq 0\rightarrow [-1,1], f(x)= cos(x)\\-1=cos(x) \therefore x=\pi,3\pi,5\pi,etc.$

Surjective.

$11.f:R\geq 0[-1,1], f(x) = 0\\$

Surjective

12.f: US Citizens→Z, f(x) = the SSN of x.

General function

13.f: US Zip Codes→US States, f(x) = The state that x belongs to.

Surjective

7 0

3 years ago

What is the coordinate of G' if triangle E'F'G' is created by dilating EFG with a factor of 4 about the origin?

lorasvet [3.4K]

The coordinate of G' if triangle E'F'G' is created by dilating EFG with a scale factor of 4 about the origin is (8, -8).

<h3>The types of transformation.</h3>

In Mathematics, there are different types of transformation and these include the following:

Reflection
Rotation
Translation
Dilation

<h3>What is dilation?</h3>

Dilation can be defined as a type of transformation which changes the size of a geometric object, but not its shape. This ultimately implies that, the size of the geometric object would be increased or decreased based on the scale factor used.

Since the dilatation was centered around the origin, then we would multiply the coordinate of G by a scale factor of 4 as follows:

G = (2, -2) → G'[(4 × 2), (4 × -2)]

G = (2, -2) → G'(8, -8)

Read more on dilation here: brainly.com/question/20482938

#SPJ1

3 0

1 year ago

Pls help asap! what's the area?

Harlamova29_29 [7]

Answer:

519 meters square

Step-by-step explanation:

16 x 16 = 256

256 / 2 = 128

11.5 + 34 = 391

128 + 391

100 + 300 = 400

20 + 90 = 110

8 + 1 = 9

400 + 110 + 9 = 519

6 0

3 years ago

Read 2 more answers

Michael and Angelo live in a small town in Italy. They work as artists. Michael is the more productive artist; he can produce 12

eduard

Answer:

Cost of opportunity is 12 small sculptures for Michael and 5 sculptures for Angelo.

Step-by-step explanation:

The cost of opportunity is the alternative that you sacrifice when you choose an option.

It represents the benefits that you miss out on when choosing one alternative over another.

In this case, the cost of opportunity<u> of painting</u> for each artist is the quantity of sculptures that they can make in the same time.

So, cost of opportunity is 12 small sculptures for Michael and 5 sculptures for Angelo.

5 0

4 years ago