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2 years ago

The green shape is a dilation Of the black shape. What is the scale factor of the dilation?

Mathematics

1 answer:

Marrrta [24]2 years ago

4 0

Sorry I’m not smart but if I’m not wrong I think it’s 3/15...

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3x + ky = 8

djyliett [7]

Answer:

a) 3x + ky = 8

ky = 8 - 3x

x – 2ky = 5

x - 2(8 - 3x) = 5

x - 16 + 6x = 5

7x = 21

x = 3 (shown)

b) x-2ky = 5

sub x = 3, y = 1/2

3-2k(1/2) = 5

-2k = 2

k = -1

3 0

2 years ago

If i went to a club at 10 am and there was different activities for the time of 30 , 20 , 20 ,45 , 40 , 15 ,15, 30 mins and 1 ho

pav-90 [236]

It finished 2:35pm . this is the answer check it out

5 0

2 years ago

Factor the trinomial:<br><br> 2x^2+13x+21

tankabanditka [31]

Answer:

$(2x + 7) \times (x + 3)$

Step-by-step explanation:

${2x}^{2} + 13x + 21$

${2x}^{2} + 7x + 6x + 21$

$x \times (2x + 7) + 3(2x + 7)$

$= (2x + 7) \times (x + 3)$

6 0

2 years ago

A study of all the students at a small college showed a mean age of 20.9 and a standard deviation of 2.9 years. These numbers ar

Ganezh [65]

Answer:

These numbers are - parameters.

Step-by-step explanation:

A study of all the students at a small college showed a mean age of 20.9 and a standard deviation of 2.9 years.

These numbers are - parameters.

These numbers are parameters as they are for all the students, and merely not a sample.

7 0

2 years ago

John folded a length of rope in half and then made a mark on the rope at the fold. Which of the following geometric principles d

abruzzese [7]

Answer:

C. He found the midpoint of a segment.

Step-by-step explanation:

The midpoint is the point that divides a segment into two equal parts. Thus it is located at the middle of the segment.

John used this simple method to determine the midpoint of a segment. For example, let a segment AB = 10 cm be folded in half. A point made at the fold would be at 5 cm, which is the midpoint of the segment.

Thus the appropriate answer to the question is option C.

7 0

2 years ago