1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Aleonysh [2.5K]
2 years ago
15

PLEASE PLEASE PLEASE HELPPP PLS

Mathematics
1 answer:
Nesterboy [21]2 years ago
6 0
HTTPS;/goldensccr.org
You might be interested in
(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
Will give brainliest to whoever answers both questions!! I need to turn this in soon!
Harman [31]

Answer:

y=55x

given y=385

x=gallons of gas = 385/55 = 7 gallons

inverse function

y=55x

change x to y and y to x

x=55y

y=x/55

inverse function is x/55

Step-by-step explanation:

5 0
3 years ago
What is the first step you should take to solve the following expression: 17:4+ 22 – 12x33?
PolarNik [594]

Answer:

1/4 - 3 2/5 - (2 1/3 - 1/4) =

-157/30=

-5 7/30

≅ -5.2333333

Step-by-step explanation:

3 0
3 years ago
Which number is the greatest?<br> A. 6/3<br> B. -2.5<br> C. 3/6<br> D. 2.5
kodGreya [7K]

Answer:

6/3

Step-by-step explanation:

6/3 is equal to 2 its bigger than any other number

6 0
3 years ago
Read 2 more answers
Time to test brainly's mathmaticians
padilas [110]

Answer:

b

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • A cereal manufacturer has a tolerance of .75
    11·1 answer
  • How do the properties of a Sine Function graph (Amplitude, Period, Domain, Range and X-intercepts) Each relate to the unit circl
    6·1 answer
  • How is the graph of y=4(2x-3 translated from the graph of y=4(2)^x?
    8·1 answer
  • Over what interval is the function in this graph decreasing? ANYONE HELP ME PLEASE !!!)';
    6·1 answer
  • 165 centimeters into inches
    7·1 answer
  • Joe is working on a school report in a word processor she wants to place an oversized image which is 30.51 cm wide so that it ap
    6·2 answers
  • Please help.<br> Is algebra.
    5·1 answer
  • Give the first 3 multiples of 12
    14·1 answer
  • What is the domain of the following graph? Please don't put links down I cant download them.
    7·2 answers
  • Be Precise What is the difference between a terminating decimal and a repeating <br> decimal?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!