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Marina CMI [18]
3 years ago
7

Help me please I need an answer asap

Mathematics
1 answer:
Sergio [31]3 years ago
3 0

Answer:

c option

Step-by-step explanation:

please mark me brainliest and 5 star

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What is the scale factor (k) of the dilation if C is (-6,9) and C' is (-2,3)?
bekas [8.4K]

Answer:

Step-by-step explanation:

Given the original coordinate as C (-6, 9) and new coordinates after dilation as C' (-2, 3), we can see that the value of the new coordinates has reduces by a factor. Let the factor be k

For the x coordinates:

C' = kC

x' = kx

-2 = k(-6)

-2 = -6k

Divide both sides by -6

k = -2/-6

k = 1/3

For the y-coordinates:

y' = ky

3 = 9k

Divide both sides by 9:

3/9 = 9k/9

1/3 = k

k = 1/3

Hence the scale factor of the dilation is 1/3

4 0
4 years ago
Read 2 more answers
A store sells forks for $3.50 each, spoons for $3.80 each, and knives for $4.25 each. Ken wants to have a ratio of forks to spoo
Gala2k [10]
Forks to spoons to knives.....5:4:2.....added = 11.....so 5/11 of the total amount is spent on forks, 4/11 of the total amount is spent on spoons, and 2/11 of the total amount is spent on knives.

so if there is a total amount of 300 (maximum)....
5/11 * 300 = 1500/11 = 136.36 is spent on forks 
4/11 * 300 = 1200/11 = 109.09 is spent on spoons
2/11 * 300 = 600/11 = 54.55 is spent on knives

so if $ 136.36 is what can be spent on forks, and forks cost $ 3.50 each....then at most, he can get : 136.36 / 3.50 = 38.96 rounds to 38 forks <==


4 0
3 years ago
Read 2 more answers
What is the first step in solving the equation of 4x+3(=)15​
Oxana [17]

Answer:

The first step in solving the equation provided is to subtract 3 from 3 itself and 15. You are subtracting three from both sides

4 0
3 years ago
Solve for v.<br> -14v + 18V + 2v + 12v – 17 v = -9
Naya [18.7K]

Answer:

v = -9

Step-by-step explanation:

-14v + 18v = 4v

4v + 2v = 6v

6v + 12v = 18v

18v - 17v = 1v

1v = -9

v = -9

8 0
3 years ago
Read 2 more answers
Find the exact value for the perimeter of an equilateral triangle with an altitude of 18 cm
Zielflug [23.3K]

9514 1404 393

Answer:

  36√3 cm

Step-by-step explanation:

The perimeter of an equilateral triangle is 2√3 times the height.

  P = (2√3)h

  P = (2√3)(18 cm) = 36√3 cm

_____

<em>A little more detail</em>

The hypotenuse of a 30°-60°-90° triangle is 2/√3 times the longer leg. Here, the longer leg is 18 cm, so the side length of the equilateral triangle is ...

  18(2/√3) = 12√3 . . . cm

The equilateral triangle perimeter is 3 times that, or 36√3 cm.

4 0
3 years ago
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