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PolarNik [594]
4 years ago
15

Solve the system: 2x – 6y + 4z = 3 -3x + 9y – 6z = -3 5x – 15y + 10z = 5

Mathematics
1 answer:
mel-nik [20]4 years ago
5 0

Answer:

7

Step-by-step explanation:

i hope this is right, I did the math

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Which transformation(s) can be used to map one triangle onto the other? reflection only translation only dilation, then translat
Goshia [24]

Answer:

reflection only

rotation, then translation

Step-by-step explanation:reflection only       rotation, then translation

7 0
3 years ago
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Match each polynomial expression to its additive inverse.
fomenos

Answer:

Step-by-step explanation:

To find the additive inverse of polynomial expression, flip the sign of each term.

6x² ----> -6x²

-x ----->  +x

-2 -----> +2

Additive inverse:

-6x² + x + 2

6 0
4 years ago
13.02-6y=8y using the method of solving linear equations
gregori [183]

well add -6y to 6y which equals 0 then add 8y to 6y which equals 14y

now you have 13.02=14y 

now you can divide 13.02 divided into 14 which equals 0.93

0.93 = y

5 0
3 years ago
What is the answer to this question?
Serjik [45]

Answer:

For 2 hours of dog stinting the total cost will be the same for the two services.

Step-by-step explanation:

x to represent the number of hours of dog sitting

<u>Derrick's Dog Sitting </u>

Fixed charged rates  = $12

Sitting charges per hour  = $7

⇒Charges for x hours siting = x ( Charges per hour)

= x ( $7)  = 7x

⇒Total charges of Derrick's Dog Sitting  for x hours  = Fixed charge + Hourly Rate

= $7x + 12

<u> Darlene's Dog Sitting</u>

Fixed charged rates  = $16

Sitting charges per hour  = $5

⇒Charges for x hours siting = x ( Charges per hour)

= x ( $5)  = 5x

⇒Total charges of Darlene's Dog Sitting<u> </u>for x hours  = Fixed charge + Hourly Rate

= $5x + 16

Now, according to the question:

for x hours sitting, both company charges are same.

⇒ $7x + 12  =  $5x + 16

or, 7x - 5x = 16 - 12

or, 2x = 4

⇒ x =  2

Hence, for 2 hours of dog stinting the total cost will be the same for the two services.

5 0
4 years ago
4. Which relation is a function?
Lorico [155]

Answer:

It's B.

Step-by-step explanation:

That is B because there are no duplicate x-values in the ordered pairs.

D is a set of numbers, not a function.

4 0
3 years ago
Read 2 more answers
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