All categories

3 years ago

Given the system of equations, what is the value of the system determinant? x + y = 8 x - y = 10 0 -1 -2

Mathematics

2 answers:

kkurt [141]3 years ago

8 0

Each X and Y in the equations don't have a number in front of them so they are all considered 1.

D = 1*(-1) - 1*(-1) = -1 -1 = -2

The answer is -2

Bond [772]3 years ago

5 0

Answer:

-2

Step-by-step explanation:

We need to set up the matrix to find the determinant

a b

c d

To find the determinant we take ad - bc

x + y = 8

x - y = 10

Take the coefficients of the x and y terms

1 1

1 -1

1 (-1) - (1) *1

-1 - 1

-2

You might be interested in

Need answer fast answerrrtrrrrrrrr

MrMuchimi

Answer:

Step-by-step explanation:

7 0

3 years ago

Please help me and explain

MatroZZZ [7]

Answer:

the answers would be 12/35

because you all the animals together including the wolf and bobcat which is 35. so then you add the wolf and bobcat separately which is 12

6 0

3 years ago

Read 2 more answers

Add the equations.<br>2x-3y = -1<br>+ 3x + 3y= 26<br><br>

hichkok12 [17]

Answer:

The answer in the procedure

Step-by-step explanation:

we have

2x-3y=-1 ----> equation A

3x+3y=26 --> equation B

Solve the system by elimination

Adds equation A and equation B

2x-3y=-1

3x+3y=26

----------------

2x+3x=-1+26

5x=25

x=25/5

x=5

Find the value of y

substitute the value of x in equation A or equation B and solve for y

2(5)-3y=-1

10-3y=-1

3y=10+1

y=11/3

8 0

3 years ago

Which expressions are equivalent to the one below. Check all that apply. 16^x

madam [21]

$A.\ 4^x\cdot4^x=4^{x+x}=4^{2x}\qquad\text{used}\ a^n\cdot a^m=a^{n+m}\\\\B.\ 4^{2x}=(4^2)^x=16^x\qquad\text{used}\ (a^n)^m=a^{nm}\\\\C.\ 4^2\cdot4^x=4^{2+x}\\\\D.\ (4\cdot4)^x=16^x\\\\E.\ 4\cdot4^{2x}=4^{1+2x}\\\\F.\ 4\cdot4^x=4^{1+x}\\\\Answer:\ \boxed{B.\ and\ D.}$

3 0

3 years ago

Write an equation in slop intercept form (y=mx+b) for the line that has a slope (m) of 12 and passes though the point (3,20)

navik [9.2K]

Answer:

y=12x-4

Step-by-step explanation:

To find the slope intercept form, we know the m(slope) but we need to find b.

y and x is given to us, so we can find b.

Plug in the numbers provided into the slope intercept form.

y=mx+b

20=(12)(2)+b

20=24+b

To find b, we have to get b by itself. So, we subtract both sides by 24.

-4=b

Now that we found b, we can plug this into the equation.

y=12x-4

3 0

3 years ago