4 years ago

What is a perfect matrix?

1 answer:

7 0

A perfect matrix is an m-by-n binary matrix that has no possible k-by-k submatrix K that is good with the conditions, k > 3. In summary, balanced matrixes is a perfect matrixes.

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In a right triangle, one of the non-right angles is 73 degrees. What is the measure of the other non-right angle?

Xelga [282]

The sum of all angles in a triangle has to be 180 so

180-90-73=17

The other non right angle is 17

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3 years ago

A vending machine has 5 colors (white, red, green, blue, and yellow) of gumballs and an equal chance of dispensing each. A secon

Karo-lina-s [1.5K]

Answer:

1/20 or 0.05

Step-by-step explanation:

The probability of getting yellow:

1/5

The probability of getting a lion rubber band:

1/4

The probability of getting two events (getting yellow, getting a lion) are independent, so we have to multiply the two probabilities to get:

(1/5) × (1/4)
1/20 or 0.05

7 0

3 years ago

If your looking for 50 points + brainiest answer this question correctly plz. thanks

jonny [76]

Answer:

Option 3, 57+32=32+57

Step-by-step explanation:

Communitive Property of Addition is where the equation is the same except the numbers swap places. In this case, that would be 57+32=32+57.

If this answer has helped you, please mark this as brainliest

4 0

3 years ago

Read 2 more answers

Y/2=2/5 solve one step equation?

neonofarm [45]

Step-by-step explanation:

y/2=2/5

5y=4

y=4/5

so, y=4/5

5 0

3 years ago

What times what equals -30 but also can be added together and equal -4

Step2247 [10]

Answer:

Step-by-step explanation:

xy=-30

y=-30/x

x+y=-4

x-30/x=-4

x²-30=-4x

x²+4x-30=0

$x^2+4x-30=0\\x=\frac{-4\pm\sqrt{16+120} }{2} \\=\frac{-4\pm\sqrt{136} }{2} \\=-2\pm\sqrt{39} \\=-2+\sqrt{39} ,-2-\sqrt{39} \\y=\frac{-4}{-2+\sqrt{39} } ,\frac{4}{2+\sqrt{39} }$ $correction write ~-30 ~in~place~of~-4~in~the~end$

5 0

3 years ago