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Alex Ar [27]
3 years ago
14

Dude sombody pleasee help me nobody is taking it seriously:(​

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
3 0

Answer:

(9, 5) or (0, 14)

Step-by-step explanation:

4+2+3+2=9

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Tennis star Rafael Nadal lost at the Australian Open. How many Grand Slams has he won?
cluponka [151]

Answer:

Nadal won but it is the only major he hasn't won at least twice with 13 at Roland Harris four at the U.S

4 0
2 years ago
The cost of a plumbing repair is given by the equation y=45x+30, where x is the number of hours the repair takes and y is the to
arlik [135]
First you subtract the 30 from 300 and than 270/45 and your answer will be A. 6
6 0
3 years ago
The two lines graphed below are not parallel. How many solutions are
gizmo_the_mogwai [7]

Answer:

Step-by-step explanation:

Any non-parallel lines in the plane must intersect in one place; thus, there is one solution to the system of equations.

3 0
3 years ago
Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels 18 miles per hou
blagie [28]

Formula: Distance = rate * time

570 = (R+(R-18))*3

570 = (2R - 18)*3

190 = 2R-16

208 = 2R

R = 104


Eastbound Train: 86mph

Westbound Train: 104mph

3 0
2 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
2 years ago
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