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Sunny_sXe [5.5K]
3 years ago
9

Simplify. (Start 2 By 1 Matrix 1st Row 1st Column 12 2nd Row 1st Column 7 EndMatrix )(Start 2 By 1 Matrix 1st Row 1st Column 12

2nd Row 1st Column 7 EndMatrix )equals nothing

Mathematics
1 answer:
sveticcg [70]3 years ago
3 0

Answer:

Step-by-step explanation:

Check attachment for solution

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Find the GCF of 20 and 30.<br> 02<br> 05<br> O 10<br> O 15
vitfil [10]

Answer:

10

Step-by-step explanation:

10 is the greatest common factor of 20 and 30

4 0
2 years ago
Read 2 more answers
Plz help assap!!!!!!​
Neporo4naja [7]

Answer:

3y = 60°, 2y = 40° ,     4x = 104°, x = 26°, y = 50°

Step-by-step explanation:

Triangle g

180° = 80° + 3y + 2y

100° = 5y

y = 20°

Triangle h

y = 180° - 130°

y = 50°

180° = 4x + x + 50°

130° = 5x

x = 130 / 5

x = 26°

6 0
2 years ago
this question is pretty easy i just dont understand, so if you could answer asap that would really help :)
alexdok [17]
The second choice should be correct

6 0
3 years ago
PLEASE HELP, I REALLY NEED IT!!!
inessss [21]

Let's break this down into what each piece is.

One flat= one whole= 1

One rod= one tenth= 0.1

One unit= one hundredth= 0.01

a) We have 1 flat, 3 rods, and 7 units. Using what we know, we have 1 whole, 3 tenths, and 7 hundredths. So, this is 1 + 0.3+ 0.07. This equals 1.37.

b) 1 flat, 37 units. This is 1 whole, and 37 hundredths. When there are two digits that you want to put in the hundredths place, put the digit furthest to the right in the hundredths place (excluding decimals) and place the rest of the number to the left accordingly. So for us, 37 hundredths would be .37, not .037. Add up 1 and .37, and we have 1.37.

c) 13 rods, 7 units. This is like the last problem. We have two digits wanted to go in the tenths place, but that isn't possible. So, we take the digit all the way to the right and put it in the tenths place (3). Now, we take out remaining digits (1), and put it in the next space to the left. Our rods= 1.3. Now for our units. We have 7, so that equals 0.07. Add it together, and now we have 1.37.

All of the problems equal 1.37. This shows how many ways a number can be represented.

Hope this helped! If it's still confusing, feel free to comment. have a nice day!

4 0
1 year ago
3x+1/5y=7 solve for y
Vladimir79 [104]
Hello!

First, let's write the problem.
3x+\frac{1}{5}y=7
Subtract 3x from both sides.
3x+\frac{1}{5}y-3x=7-3x
\frac{1}{5}y=7-3x
The opposite of division is multiplication, so we are going to multiply in order to undo the fraction.
5\cdot \frac{1}{5}y=5\cdot \:7-5\cdot \:3x

Our final answer would be, 
y=35-15x

Thanks!
-TetraFish
5 0
3 years ago
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