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4 years ago

Geometry Help PLZ!!!

Mathematics

1 answer:

Eva8 [605]4 years ago

3 0

Answer:

Step-by-step explanation:

rise step-chickens!!!!

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120 to 52 what % decrease

noname [10]

The formula is percent= part/whole so it would be 52/120 which is .43333333333<span> or 43%</span>

3 0

3 years ago

Which real-world transformations can be represented by dilations? Select two options. 1. turning a camera to take a photograph 2

Fittoniya [83]

Answer:

3 and 4

Step-by-step explanation:

A dilation is a transformation that produces an image that is the same shape as the original, but is a different size so here reducing a photograph to half its dimensions and enlarging a photograph to double the dimensions is dilation.

=> For dilation, we use a certain scale factor

=> In the 3rd option, scale factor is 1/2

=> In the 4th option, scale factor is 2.

4 0

4 years ago

A small concert hall was setting up chairs for the next concert. The graph below shows the

Y_Kistochka [10]

I believe it's A, sorry if it's incorrect. ^-^'

4 0

3 years ago

Put -31 0 -12 -4 and -42 in increasing order<br><br> I need help

Mekhanik [1.2K]

Answer: -42, -31, -12, -4 and 0

Step-by-step explanation:

Any negative number is lower than 0

4 0

4 years ago

A triangle with vertices at A(20, –30), B(10, –15), and C(5, –20) has been dilated with a center of dilation at the origin. The

Kobotan [32]

Answer:

One-fifth

Step-by-step explanation:

step 1

Find the distance between the origin and the point B

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

O (0,0) and B(10, –15)

substitute

$d=\sqrt{(-15-0)^{2}+(10-0)^{2}}$

$d=\sqrt{325}\ units$

step 2

Find the distance between the origin and the point B'

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

O (0,0) and B'(2,-3)

substitute

$d=\sqrt{(-3-0)^{2}+(2-0)^{2}}$

$d=\sqrt{13}\ units$

step 3

Find the scale factor of the dilation

The scale factor is equal to divide the length of segment OB' by the length of segment OB

$\frac{\sqrt{13}}{\sqrt{325}}=\frac{1}{5}$

One-fifth

4 0

3 years ago

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