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-BARSIC- [3]
3 years ago
15

Please help me with this

Mathematics
1 answer:
Rudik [331]3 years ago
3 0

Answer:

  x = 18

Step-by-step explanation:

The parts of the triangles are proportional, so you can write ...

  2x/80 = 27/60

Multiply by 120:

  3x = 54

Divide by 3:

  x = 18

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U is between S and N.
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What’s The Answer To This? Please Help Fast
s2008m [1.1K]

Answer:

x=30

Step-by-step explanation:

you would call those alternate exterior angles meaning that they are the same angle, so all you have to do is reverse the equation meaning you do 75-15=60 and you would then divide by 2 to get X so 60/2=30, so <u>x=30</u>

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The sizes of two matrices A and B are given. Find the sizes of the product AB and the product BA, if the products are defined. A
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Answer:

AB: size 4 x 4

BA: size 2 x 2

Step-by-step explanation:

When we want to multiply two matrices, we need first to check if the number of columns of the first matrix is equal the number of rows of the second matrix. Then, the resulting matrix would have the number of rows equal the number of rows of the first matrix, and the number of columns equal the number of columns of the second matrix.

That is, if we have a matrix A with dimensions a x b and a matrix B with dimensions c x d, to calculate the product AB we must have b = c, and the resulting product would have dimensions a x d.

Finally, if A is 4 x 2 and B is 2 x 4, we would have:

AB = (4 x 2) (2 x 4)

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BA = (2 x 4) (4 x 2)

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Dimensions of the result: 2 x 2

4 0
4 years ago
If ying zyiyu covered the first 200 miles of a trip going at 50 mph and the last hundred miles going at 40 mph, what was his ave
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3 years ago
Is v=8u+8 linear equation
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Solve equation [1] for the variable u


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// Plug this in for variable u in equation [2]

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[2] v = - 8
// By now we know this much :

u = v
v = -8
// Use the v value to solve for u

u = (-8) = -8
Solution : {u , v } = { -8,-8}

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