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2 years ago

Square A′B′C′D′ is a dilation of square ABCD .

Mathematics

2 answers:

Alona [7]2 years ago

7 0

Answer:

The Answer is 1/2 NOT 1/3 i Just took the test

Step-by-step explanation:

Ainat [17]2 years ago

6 0

The answer to this question is 1/3

I took the test

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Which of the following points is a vertex for the image produced by a dilation about the origin with a scale factor of 1/2?

MA_775_DIABLO [31]

Answer:

A (0,3)

Step-by-step explanation:

The given trapezoid has vertices:

(0,6), (7,12), (7,9) and (0,12).

We want to choose from the given options, a point that is a vertex for the image produced by a dilation about the origin with a scale factor of 1/2.

Note that the mapping for such a dilation is:

$(x,y)\to( \frac{1}{2} x, \frac{1}{2} y)$

This implies that:

$(0,6)\to(0,3)$

$(7,12)\to(3.5,6)$

$(7,9)\to(3.5,4.5)$

$(0,12)\to(0,6)$

Therefore correct choice is (0,3)

8 0

3 years ago

Factorise the following 27 x minus 9 y

dangina [55]

Answer:

27x-9y

3(9x-3y)

Step-by-step explanation:

please mark me as brainlest

4 0

2 years ago

2b +4= -8

kolbaska11 [484]

Answer:

b = (-6). 2×-6 + 4 = -8

9= 5. 2×5-6 = 4

s=4. 3×4 = 12 , 12-4 = 8

3 0

2 years ago

Which function is odd? Check all that apply.

kvasek [131]

<em></em> $The\ function\ is\ odd\ if\ f(-x)=-f(x)\\\\We\ know:\\\sin x;\ \tan x\ and\ \cot x\ are\ odds.\\\cos x\ is\ even\ /\cos(-x)=\cos x/\\--------------------\\\\A.\ y=\sec x\\\\\sec(-x)=\dfrac{1}{\cos(-x)}=\dfrac{1}{\cos x}=\sec x-\fbox {NO}\\\\B.\ y=\sin x-\fbox{YES}\\\\C.\ y=\cot x\\\\\cot(-x)=\dfrac{\cos(-x)}{\sin(-x)}=\dfrac{\cos x}{-\sin x}=-\dfrac{\cos x}{\sin x}=-\cot x-\fbox{YES}\\\\D.\ y=\csc x\\\\\csc(-x)=\dfrac{1}{\sin(-x)}=\dfrac{1}{-\sin x}=-\dfrac{1}{\sin x}=-\csc x-\fbox{YES}$

6 0

3 years ago

Read 2 more answers

Even has a bag of 14 jelly beans. Four of his jelly beans are black, five are red, and five are purple. What is the ratio of the

nirvana33 [79]

Answer: 14:4

Step-by-step explanation:

The amount of jelly beans: 14

The amount of black jelly beans: 4

all beans: black beans

14:4

6 0

2 years ago