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pishuonlain [190]
3 years ago
7

The reduced row-echelon forms of the augmented matrices of four systems are given below. How many solutions does each system hav

e? Here is the matrices:
1 0 -12 0
0 1 0 0
0 0 0 1
0 0 0 0
A. Infinitely many solutions
B. No solutions
C. Unique solution
D. None of the above
Mathematics
1 answer:
vagabundo [1.1K]3 years ago
8 0

Answer:

A. Infinitely many solutions.

Step-by-step explanation:

The row and column numbers are equal in the echelon. This rows have 0001 numbers which indicates that there is free variable at the end. The reduced row echelon has equal number of rows and columns. There are infinitely many solution as the numbers in the rows are zero ending of the free variable 1. If there is no free variable then there will be no solution.

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Question 19 (5 points) ✔ Saved
zheka24 [161]

The order of temperature values become -16.7°C > -11.15°C > -7°C > 3°C And -16.7°C is the coolest temperature and 3°C is the warmest as compare to others.

According to the statement

we have given that the some values of the temperatures and we have to write it in the order from the coolest to the warmest means in increasing order.

So, For this purpose,

The given values of temperatures are:

3°C , -7°C , 2°F, 262 K

Firstly convert into one form

So, convert all values in Celsius form,

3°C = 3°C

-7°C = -7°C

2°F = -16.7°C

262 K = -11.15°C

Now arrange into the order from coolest to warmest

So, it will become

-16.7°C > -11.15°C > -7°C > 3°C

So, -16.7°C is the coolest temperature and 3°C is the warmest as compare to others.

The order of temperature values become -16.7°C > -11.15°C > -7°C > 3°C And -16.7°C is the coolest temperature and 3°C is the warmest as compare to others.

Learn about the increasing order here

brainly.com/question/14662181

#SPJ1

7 0
1 year ago
Math Help Please??? Don't Answer If Unsure Please?
enot [183]
#1: 
Solve:
-5/12 x 8/13 = -40/156 
-40/156 can both be divided by 4: 40 ÷ 4 = 10 & 156 ÷ 4 = 39
Your final answer is: Option 2, -10/39

#2
Solve: 
3/8 x (-3/6) you can first simplify 3/6 into 1/2 so-- 3/8 x (-1/2) = -3/16
Your answer is: -3/16

I've solved two of them for you, can you solve the rest on your own? (Reply if you need more answers)
5 0
3 years ago
Sarika’s house is 5 km from her office. She covered 4 ½ by train and the remaining by walk.
givi [52]

Answer:

1/2 km or 0.5 km

Step-by-step explanation:

In the attached file

7 0
4 years ago
Read 2 more answers
Can somebody help me pleasee????
Marina86 [1]

Answer:

C

Step-by-step explanation:

3x + 3y = -x + 5y

3x + x = 5y - 3y

4x = 2y

Divide both by 2

2x = y

(1,2) when x=1, y=2

2(1)=2 is a true statement

(2,4) when x=2, y=4

2(2)=4 is a true statement

8 0
4 years ago
Wahat are 3 ways to solve 12×15 math problems
Rom4ik [11]

Answer:

12 times 15 = 180 , 12+12+12+12+12+12+12+12+12+12+12+12+12+12+12=180, 12 times 15=180

Step-by-step explanation:

3 0
3 years ago
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