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Ghella [55]
3 years ago
15

Cuanto es (4x+5)(4x+5)

Mathematics
2 answers:
docker41 [41]3 years ago
6 0

Answer:

If your simplifying it then it would just be (4x+5)x^{2}

Step-by-step explanation:

Pachacha [2.7K]3 years ago
4 0

Answer:

16x^2+40x+25

Step-by-step explanation:

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Solve the system by substitution. y = 8x + 32 Y= -8x​
leonid [27]
The answer is (x,y) = (-2, 16)

do you need an explanation as well?
6 0
2 years ago
Simon leans a 20 ft ladder against the side of his house so that the base of the ladder is
finlep [7]
The answer is 19.4
Most of the time when you try to find a missing length of a right triangle you use Pythagorean theorem. Pythagorean theorem is A squared plus B squared equals C squared. C squared is always going to be the longest length/diagonal line otherwise known as your hypotenuse. In this case the ladder is the hypotenuse. So instead of adding five squared +20 squared you’re going to square 20 and then subtract five squared to get the missing length which would be B squared and then you have to find the square root of B squared. So 20 squared is 4000. 5squared is 25 400-25 = 375 square root of 375 is about 19.4.

7 0
3 years ago
A bag contains 12 red, 30 blue, 20 green, 10 yellow, and 8 black marbles. Nancy chooses 1 marble from the bag. What is the proba
saul85 [17]

Answer:

5/8

Step-by-step explanation:

12+30+20+10 +8 =80 total marbles

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50/80

5/8

6 0
3 years ago
The row-echelon form of the augmented matrix of a system of equations is given. Find the solution of the system.
Zepler [3.9K]

Answer:

option-C

Step-by-step explanation:

We are given row-echelon form

So, we can write equation from matrix as

x-5z=-3

y-4z=-5

Let's assume

z=t

now, we can find x and y

x-5t=-3

x=5t-3

y-4t=-5

y=4t-5

so, we get solutions as

x=5t-3

y=4t-5

z=t

where t can be any real numbers

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Answer:

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