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3 years ago

Suppose y varies with x. When x is -2, y is 10. Write the equation that relates x and y

Mathematics

1 answer:

Blababa [14]3 years ago

8 0

Answer:

-x : y/2

Step-by-step explanation:

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Solve for Y. 9/4y-12=1/4y-4

Lelechka [254]

I believe y equals 4.

9/4y - 12. = 1/4y - 4
+ 12. +12
9/4y. = 1/4y + 8
- 1/4y. - 1/4y

8/4y. = 8
2y. = 8
2. 2
Y = 4

4 0

3 years ago

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The whole numbers from 10-12 are paired with their factors explain why this pairing doesnt describe a function

myrzilka [38]

Answer:

As given whole numbers from 10 - 12 are paired with their factors.

factor of ,10=1,2,5,10 → (10,1),(10,2),(10,5)(10,10)

factor of 11=1, 11 → (11,1),(11,11)

factor of 12=1,2,3,4,6,12→ (12,1),(12,2),(12,3),(12,4),(12,6),(12,12)

As we know for an ordered pair to be function Every element in the domain must have a unique image, i.e it can't have more than one image.

→ As element 10, have four images,which are 1,2,5,10 so it can,t be a function.

Similarly element 11 have two images 1,11 so it can't be a function.

Element 12 have six images 1,2,3,4,6,12, so it also can't be written as function.

8 0

3 years ago

Two towns that are 31.5 km apart are 3 cm apart on a map. what is the scale of the map?

VLD [36.1K]

<u>Answer:</u>

1 cm : 10.5 km

<u>Step-by-step explanation:</u>

We are given that two towns are 31.5 km in real and are 3 cm apart on a map and we are to find the scale of the map.

For this, we can use the ratio method.

$\frac { 3 cm } { 1 c m } = \frac { 3 1 . 5 k m } { x }$

$x = \frac { 3 1 . 5 \times 1 } { 3 }$

$x = 1 0 . 5$

Therefore, the scale of the map would be 1 cm : 10.5 km.

8 0

3 years ago

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<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B9%20%7Bx%7D%5E%7B2%7D%20%7D%20" id="TexFormula1" title=" \sqrt{9 {x}^{2} } " alt=

Firlakuza [10]

The answer would be 3x i believe
hope this helps! if it doesn't, let me know in the comments! have a great day!

6 0

3 years ago

heeeelllllpppppp heyyy i need help asap and please try your best and solve the problem out it would be greatly appreciated becau

andreev551 [17]

Answer:

${10}^{ - 14}$

Step-by-step explanation:

$\huge\frac{ {10}^{ - 9} }{ {10}^{5} } \\ \\ \huge = {10}^{ - 9} \times {10}^{ - 5} \\ \\ \huge = {10}^{ - 9 + ( - 5)} \\ \\ \huge = {10}^{ - 9 - 5} \\ \\ \huge \orange {= {10}^{ - 14}}$

7 0

3 years ago

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