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2 years ago

Once again i dont understand math

Mathematics

1 answer:

Sergio [31]2 years ago

5 0

Answer:

1/4

Step-by-step explanation:

First,simplify the exponent in the parentheses:

4^-2 x <u>(-1)^0</u> x 4^1

4^-2 x 1 x 4^1

Then simplify the rest:

4^-2 x 1 x 4^1

1/16 x 1 x 4

Then multiply from left to right:

1/16 x 1 x 4

1/16 x 4

1/4

(-1)^0:A number that is raised to the power of 0 will always be 1.

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What are the advantages of being paid a salary instead of an hourly rate? What are the disadvantages of being paid a salary inst

Licemer1 [7]

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3 years ago

A recipe that makes 4 servings calls for Two-thirds cup of flour. How much flour is required to make 20 servings?

Karo-lina-s [1.5K]

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8/3

Step-by-step explanation:

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2 years ago

Write the equation of the following graph in intercept form.

Kobotan [32]

Answer:

A) $f(x)=0.2(x+2)(x-5)$

Step-by-step explanation:

The graph has x-intercepts at $x=5$ and $x=-2$ , so our factors for the polynomial will be $x+2$ and $x-5$ . This means we can rule out options B and D.

Our graph also has a y-intercept of $y=-2$ when $x=0$ , so if we let $f(x)=-2$ and $x=0$ , we can find the multiplier:

$f(x)=a(x+2)(x-5)\\-2=a(0+2)(0-5)\\-2=a(2)(-5)\\-2=-10a\\\frac{1}{5}=a\\0.2=a$

Thus, the correct equation is A) $f(x)=0.2(x+2)(x-5)$

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2 years ago

The graph of a system of linear equations is shown.

zheka24 [161]

C

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3 years ago

Graph the image of this quadrilateral after a dilation with a scale factor of 4 centered at the origin

Brut [27]

Answer: The image is attached.

Step-by-step explanation:

A Dilation is defined as a transformation in which the image and the pre-image have the same shape, but their sizes are different.

When the scale factor is greater than 1, the image obtained after the dilation is greater than the pre-image and it is an "Enlargement".

When the scale factor is is between 0 and 1, the image obtained after the dilation is smaller than the pre-image and it is an "Reduction".

In this case we know that the scale factor is:

$scale\ factor=4$

Since:

$4>1$

It is an Enlargement.

You can identify that the vertices of the pre-image shown in the figure, are:

$(-2,1)\\\\(-1,2)\\\\(0,0)\\\\(-1,-2)$

So you need to multiply the coordinates of those vertices by 4 in order to get the coordinates of the image;

$((-2)(4),1(4))=(-8,4)\\\\((-1)(4),(2)(4))=(-4,8)\\\\((0)(4),(0)(4)=(0,0)\\\\((-1)(4),(-2)(4))=(-4,-8)$

Now you can draw it (The image is attached).

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3 years ago