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Alexus [3.1K]
3 years ago
12

True or False:

Mathematics
2 answers:
Lostsunrise [7]3 years ago
8 0
The answer is true to all of them.
Virty [35]3 years ago
7 0
Hey there is see you need help well i am here to do just that 
true
true
true
true
true

hope this helps


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Suppose that A is nonsingular. Prove that its inverse A-1 is unique. [Hint: Show that if there exists two matrices, B and C, suc
Bogdan [553]

Answer with Step-by-step explanation:

Let A is non-singular

\mid A\mid\neq 0

We have to prove that A^{-1} is unique.

Suppose B and C are inverse of A such that

BA=I and AC=I

By using property AA^{-1}=A^{-1}A=I

C=C

(BA)C=B(AC)

I\cdot C=B\cdot I

C=B

Hence, the inverse of A is unique.

4 0
3 years ago
Math is so hard man but can someone help me
nataly862011 [7]

Answer:

a

Step-by-step explanation:

7 0
3 years ago
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57% people ordered steak. 120 did not. how many customers were there that night?
jok3333 [9.3K]
X - number of customers

120+57\%x=x\\
120+0.57x=x\\
0.43x=120\\
x\approx297.07

There can't be a fraction of the number of people, so there must be some mistake in the question.
<span />
4 0
3 years ago
Please answer if you know the answer.<br> Find x and give reasons.
gregori [183]
Here’s the answer, hope it helps. Btw these are screenshots from someone else’s work not mine

6 0
3 years ago
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The bakers at Healthy Bakery can make 230 bagels in 10 hours. How many bagels can they bake in 23 hours?
BartSMP [9]

Step-by-step explanation:

To find how many they can make in one hour simply divide both the amount of bagels they made by ten.

230 bagels = 10 hours

23 bagels =  1 hour.

Multiply this by twenty three

529 bagels = 23 hours

4 0
3 years ago
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