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Mazyrski [523]
3 years ago
8

I don't understand this at all...please help

Mathematics
2 answers:
umka21 [38]3 years ago
5 0

Answer:

A

Step-by-step explanation:

This is from the definition of an inverse matrix. Always will be 1 when multiplied.

zavuch27 [327]3 years ago
3 0

Answer:

Step-by-step explanation:

A

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Ok so I wanted to make sure my math was correct <br> Is 274.43 - 20.46 - 25.89 = 228.08
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5 0
3 years ago
Read 2 more answers
Aladdin had two envelopes to start. He bought three packs of
Stells [14]
Since it starts with 2 envelopes, subtract 2 from 17 to get how many and in all 3 packs.
17 - 2 = 15
Now, we divide that number by 3 to get how many are in each envelope.
15 / 3 = 5
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8 0
3 years ago
Find an odd number with 3 digits such that all the digits are different and add up to 15. The difference between the first two d
Serjik [45]

Answer:

The three digit number = 951

Step-by-step explanation:

Let suppose the numbers are:

= abc

According to given condition:

a+ b + c = 15  -------------eq1

Also, given the difference between the first two digit = the difference between the last two digits:  

==> l a-b l = l b-cl  

==> (a-b) = (b-c)  

==> (a+c) = 2b

Now we will substitue in eq1

==> a+ b + c = 15

==> 2b + b = 15

==> 3b = 15

Dividing both sides by 3 we get:

b =5

a + c = 2b

a+ c = 10

a = 10 -c ..........(2)

We know that"  

(a-b) = (b-c)

==> a > b+c

==> a > 5 + c

==> 10 -c > 5 +c  

==>5 > 2c

==> 2.5 > c

As c is an odd number so c will be equal to 1

c = 1

a = 10 -1

a = 9

The three digit number = 951

The hundred digit is greater than the sum of the tens and ones digits

i hope it will help you!

6 0
3 years ago
Help me with my math **50 pts** I mark brainliest**
s2008m [1.1K]

Answer:

2)

2x + 6x + 8 = 32

collect like terms

8x + 8 = 32

move the constant to the right hand side and change its sign.

8x = 32 - 8

Subtract the numbers

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8 0
3 years ago
Find the area of this figure.
kakasveta [241]

Answer:

pretty sure it's 360 :)

Step-by-step explanation:

...

5 0
3 years ago
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