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alekssr [168]
3 years ago
11

Please help . I’ll mark you as brainliest if correct

Mathematics
1 answer:
Oxana [17]3 years ago
8 0

Answer:

30m

Step-by-step explanation:

51-21=30 that is the length of the long piece

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Nostrana [21]

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a ) Two matrices cannot be multiplied.

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b )

The answer is | 20 - 4 - 12 |

| 8 2 19 - |

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7 0
3 years ago
What is 5+5-2x4-6+23<br> Please help
Lera25 [3.4K]

Answer:

19

Step-by-step explanation:

thats what the calculator said sheesh sheesh it was really hard

3 0
3 years ago
Read 2 more answers
Factor completely 3x2 + y. x(3x + y) y(3x2) xy(3x + 1) Prime
Rainbow [258]

Answer:

Option (d) is correct.

The given polynomial 3x^2+y is a prime polynomial.

Step-by-step explanation:

Given : 3x^2+y

We have to factorize it completely.

Since , factorization is the process of reducing a given polynomial into a lower degree polynomial by taking common factors out into the simplest form.

Consider the given polynomial 3x^2+y

Since the given polynomial do not have any term common in both terms .

So we cannot factorized it further.

So, the given polynomial 3x^2+y is a prime polynomial.

Thus, Option (d) is correct.

 

5 0
3 years ago
Read 2 more answers
Point M is between points L and N on segment LN. LM=5x, MN=2x+4, and LN=10x-16
nadezda [96]

Answer:

x= 6.6

LM= 33

MN= 17.2

LN=50

Step-by-step explanation:

10x-16= 5x+2x+4 (LN=LM+MN)

10x-16=7x+4

3x-16=4

3x=20

x=6.6

then plug 6.6 back into equation and round to the nearest whole number.

5 0
3 years ago
Can you please show work​
fgiga [73]

Answer:

A) 3.44 ft²

Step-by-step explanation:

before cutouts, the area was 4 x 4 = 16 ft²

the circles have a diameter of 2 ft each, and a radius of 1 ft

each circle has an area pf (3.14)(1²) = 3.14 ft²

3.14 x 4 = 12.56 ft²

16 - 12.56 = 3.44 ft² left

3 0
2 years ago
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