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spin [16.1K]
3 years ago
14

What is 3x-2y=1 -----------9x-6y=3

Mathematics
1 answer:
VashaNatasha [74]3 years ago
7 0
Solving for the value that makes both true

dvide the left equation by 3 to simplify
3x-2y=1
oh, they are same equaiton


inifnite solutions
the solutions are the points on the line y=(3/2)x-(1/2)
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You deposit $300 in a savings account. The account earns 2% simple interest per year.
Anit [1.1K]
300x .02= 6

6x10=60

Therefore the answer is $360
6 0
3 years ago
(PLEASE HELP ASAP)
UNO [17]

9514 1404 393

Answer:

  A. 3×3

  B. [0, 1, 5]

  C. (rows, columns) = (# equations, # variables) for matrix A; vector x remains unchanged; vector b has a row for each equation.

Step-by-step explanation:

A. The matrix A has a row for each equation and a column for each variable. The entries in each column of a given row are the coefficients of the corresponding variable in the equation the row represents. If the variable is missing, its coefficient is zero.

This system of equations has 3 equations in 3 variables, so matrix A has dimensions ...

  A dimensions = (rows, columns) = (# equations, # variables) = (3, 3)

Matrix A is 3×3.

__

B. The second row of A represents the second equation:

  0x_1+1x_2+5x_3=-1

The coefficients of the variables are 0, 1, 5. These are the entries in row 2 of matrix A.

__

C. As stated in part A, the size of matrix A will match the number of equations and variables in the system. If the number of variables remains the same, the number of rows of A (and b) will reflect the number of equations. (The number of columns of A (and rows of x) will reflect the number of variables.)

6 0
3 years ago
What is 10 to the power of -8
saw5 [17]

Answer:

\frac{1}{100000000}  

I hope this helps!

4 0
3 years ago
Read 2 more answers
What is the length of the tangent line in the picture?
S_A_V [24]

Answer:

x = -2

Step-by-step explanation:

The tangent line has length "x + 8"

The secant line has length "x + 6 + 5", where

5 is the inner part

x + 6 is the outer part

Now,

the secant-tangent theorem tells us that square of the tangent line is equal to the outer segment of secant line multiplied by length of whole secant line.

So, we can say:

(x+8)^2 = (x+6)(x+6+5)

We can solve for x shown below:

(x+8)^2 = (x+6)(x+6+5)\\(x+8)^2=(x+6)(x+11)\\x^2+16x+64=x^2+17x+66\\17x-16x=64-66\\x=-2

The value of x is -2

4 0
3 years ago
Please help quickly!!
erastovalidia [21]

Answer:

D

Step-by-step explanation:

6 0
2 years ago
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