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Flauer [41]
4 years ago
12

For all the following, which ones represent y as a function of x, and how do you know?

Mathematics
1 answer:
earnstyle [38]4 years ago
4 0
Only 25 and 28 are functions.

A function must have only one y value per x value. For 26, the y value of 0 and multiple others have two different y values. For 27, all x values less than 0 have multiple y values.
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If the image below is dilated with a scale factor of 2, what is the perimeter of the dilated image?
garri49 [273]

Answer:

the answer is 24

Step-by-step explanation:

i got it correct on my test

8 0
3 years ago
Find the value of x and simplify completely.
jok3333 [9.3K]

Answer:

<h2>x=9√10</h2>

Given: A right triangle in which an altitude is drawn from the right angle vertex to the hypotenuse.

To find: 'x' the larger leg of triangle

Solution,

Using let rule for similarity in right triangle:

\frac{leg}{part}  =  \frac{hypotenuse}{leg}  \\ or \:  \frac{x}{27}  =  \frac{3 + 27}{x}  \\ or \: x \times x = 27(3 + 27) \\ or \: x \times x = 81 + 729 \\ or \:  {x}^{2}  = 810 \\ or \:  {x}^{2}  = 81 \times 10 \\ or \:  {x}  =  \sqrt{81 \times 10}  \\ or \: x =  \sqrt{81}  \times  \sqrt{10}  \\ or \: x =  \sqrt{ {(9)}^{2} }  \times  \sqrt{10}  \\  \: x = 9 \sqrt{10}

Hope this helps...

Good luck on your assignment..

7 0
3 years ago
Combine like terms, then simplify if need be.<br><br> 4cx + cx – cx – cx + cx
Crank

Answer:

4cx

hope this helps

have a good day :)

Step-by-step explanation:

8 0
3 years ago
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What is the sum of the interior angles of the polygon shown below?
WARRIOR [948]

Answer:

n = 5

(n-2) X 180

3 x 180

540 degrees

pls mark as brainliest

5 0
3 years ago
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Please help What is the value of S4 for<br> 2.48<br> 12.48<br> 16<br> 24
Sergeu [11.5K]

Answer:

B, 12.48 is the answer

Step-by-step explanation:

Just took the test

8 0
3 years ago
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