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Neko [114]
2 years ago
7

PLEASE HELP I WILL GIVE BRAINLIEST

Mathematics
1 answer:
Leona [35]2 years ago
6 0
Answer to a : 30-19=x but for b i’m not that smart
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Select four statements from the invertible matrix theorem and show that all four statements are true or false
Lelechka [254]

Answer:

A) A is an invertible matrix ( TRUE )

B) A is a row equivalent to the n x n identity matrix ( n = 3 ) ( TRUE )

C ) The equation Ax = 0 has only the trivial solution ( TRUE )

D ) The columns of A form a linearly independent set ( TRUE )

Step-by-step explanation:

Assuming a matrix A

\left[\begin{array}{ccc}1&2&1\\-1&0&3\\4&1&5\end{array}\right]

det A = 1 [ 0 -3 ] +  2 [12 + 5 ]  + 1[-1]

        = -3 + 34 -1 = 30 ≠ 0

THEREFORE  det A = 30 ≠ 0

Attached is the detailed solution of the given statements above

5 0
3 years ago
When gathering eggs from the hen house, John can collect 12 eggs every 3 minutes. Which graph correctly represents the unit rate
True [87]

Answer: I don’t see the graph options but the unit rate is 4 eggs every minute

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Write equivalent expressions for x-7.x-2 and x7\x2
navik [9.2K]
The first one is 
-6x-2

7 0
3 years ago
HELP PLZ ASAP!!!!!!!!!!!!!!
grandymaker [24]

it is the 3 one

Step-by-step explanation:

4 0
3 years ago
The 10 members of a hiking club will walk 9 miles. Each person will carry the food pack for an equal distance. How far will each
Lelu [443]

Answer:

0.9 miles per member

Step-by-step explanation:

Total distance = 9 miles

Number of members = 10

If they are to carry the food back for an equal distance, we have to fin

Distance covered by a person with the food pack = Total distance / Number of members

Distance covered by a person with the food pack = 9 / 10 = 0.9 miles per member

7 0
3 years ago
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