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lbvjy [14]
3 years ago
12

Which classification best describes the following system of equations? X=5, y=6, -x-y+z=0

Mathematics
2 answers:
PolarNik [594]3 years ago
7 0
I don't see any answer choices, but because it already gives you x and y, all you have to do is plug them into the equation.
-(5)-(6)+z=0
combine like terms
-11 + z = 0
add 11 to both sides
z = 11 is your answer
kaheart [24]3 years ago
6 0

Answer:

consistent and independent

Step-by-step explanation:

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Tn = -2n + 3, find t4
yanalaym [24]

Substitute n = 4

t(4)=-2(4)+3

-8+3= -5

therefore t(4) = -5

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Read 2 more answers
Collin invests 7700 in two different accounts the first paid 2% the second paid 9% in interest at the end of the first year he h
horrorfan [7]

Collin invested $5529 in the account paying 2% and $2171 in the account paying 9% interest.

<u>Explanation:</u>

Let x be amount invested at 2%

 

So, 7700 - x will be the amount invested at 9%

 

0.02(x) + 0.09(7800 - x) = 315

0.02x + 702 - 0.09x = 315

-0.07x = -387

x = $5529

7700 - x = 7700 - 5529

             = $2171

 

Collin invested $5529 in the account paying 2% and $2171 in the account paying 9% interest.

8 0
4 years ago
The function f(x) = –4x2 represents the path of a whale as it surfaces for air and dives again. Select all the observations that
olga nikolaevna [1]

Answer:

Option (A) and (E)

Step-by-step explanation:

Characteristics of the quadratic function representing the path of a whale as it surfaces for air is,

y = -4x²

1). Since domain of the given function will be all real number x until ocean hits the shore on both the sides of the path.

2). Range of the function will be the value of y from the bottom of the ocean to the surface.

3). Whale will touch the surface of the ocean at one point only.

4). Function 'f' will increase initially upto the surface of the ocean and then it will decrease.

5). Point where the hale touches the surface will be maximum.

Therefore, Options (A) and (E) will be the correct options.

7 0
3 years ago
How to solve for x in the equation 3x=28-y?
Veronika [31]

Answer:

x=(28-y)/3

Step-by-step explanation:

Just divide both sides by 3.

6 0
3 years ago
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