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2 years ago

HELP HURRY PLS Graph y= 1/2x-3

Mathematics

1 answer:

Hunter-Best [27]2 years ago

8 0

Answer:

This is what it would look like. Hope this helps!

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Why are the solutions to the proportions StartFraction 40 over 8 EndFraction = StartFraction x over 10 EndFraction and StartFrac

Annette [7]

Answer:Because both result in the equation 8x = 400 which simplifies to 50.

Step-by-step explanation:

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3 years ago

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How do you find holes of a function?

Sveta_85 [38]

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A Norman window is a rectangle with a semicircle on top. Suppose that the perimeter of a particular Norman window is to be 24 fe

tekilochka [14]

Answer:

Step-by-step explanation:

Let a is the width of the window and diameter of the semicircle and let h be height of the rectangular portion of the window

Perimeter:

2h + a + .5x*pi = 21

2h + 2.57a = 21

2h = 21 - 2.57a

h = (10.5-1.285a)

What would be the window with the greatest area;

Area = semicircle + rectangle

Radius = .5a

A = (.5*pi*(.5a)^2) + h*a

Replace h with (10.5-1.285a

A = (1.57*.25a^2) + x(10.5-1.285a)

A = .3927a^2 - 1.285a^2 + 10.5a

A = -.8923a^2 + 10.5a

Find the max area by finding the axis of symmetry; x = -b/(2a)

a = 5.88 meter is the width with the greatest area

Find the max area

A = -.8923(5.88^2) + 10.5(5.88)

A = -30.85 + 61.74

A = 30.89 sq/ft is max area

4 0

3 years ago

If f(x)=3/x and g(x)=3x, which of the following statements is true?

bagirrra123 [75]

Answer:

d. (g*f)(-9)=-1

Step-by-step explanation:

In this problem, we have two functions:

$f(x)=\frac{3}{x}$

and

$g(x)=3x$

The notation:

(f*g)(x) represents the composite function of f and g; this can be calculated by using the output of g(x) as input for f(x), in other words:

$(f*g)(x)=f(g(x))$

Simiarly, the notation (g*f)(x) can be calculated by using the output of f(x) as input for g(x), mathematically:

$(g*f)(x)=g(f(x))$

Using the definitions of f(x) and g(x), we can derive an expression for the two composite functions here:

$(f*g)(x)=f(g(x))=\frac{3}{g(x)}=\frac{3}{3x}=\frac{1}{x}$

And

$(g*f)(x)=3(f(x))=3(\frac{3}{x})=\frac{9}{x}$

Now we can analyze the given statements:

a. (f*g)(2)=2 --> FALSE, because $(f*g)(2)=\frac{1}{2}$

b. (g*f)(2)=0 --> FALSE, because $(g*f)(0)=\frac{9}{0}=\infty$

c.(f*g)(9)=1 --> FALSE, because $(f*g)(9)=\frac{1}{9}$

d. (g*f)(-9)=-1 --> TRUE, because $(g*f)(-9)=\frac{9}{-9}=-1$

6 0

4 years ago

Pls, help :c I don't understand this

lora16 [44]

Answer:

quadratic i think

Step-by-step explanation:

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3 years ago