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alisha [4.7K]
3 years ago
15

PLEASE HELP ME!!! 20 POINTS!!!

Mathematics
2 answers:
Kryger [21]3 years ago
4 0

Answer:

Same Stages

Step-by-step explanation:

I believe that they are in the same stage because the snake us full grown when its a baby and the armadillo is an embryo inside of its mother.

serious [3.7K]3 years ago
3 0

Answer:

The same stage. Both the snake and the armadillo are infants.

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For all integer values of x and constant k, if (x-k)(x-5)=x^2-9x+20, what is the value of K?
amid [387]
<h3>Answer: C) 4</h3>

============================

Work Shown:

Expand out the left hand side

(x-k)(x-5)

x(x-5)-k(x-5)

x^2-5x-kx+5k

Note that the constant term here is 5k. Yes k seems like a variable, but it's actually a constant. Once we know k, we can replace it to get a fixed number. In this case, k = 4 since 5k = 5*4 = 20 to have it match with the 20 at the end of x^2-9x+20

For the x terms, we have -5x-kx = -5x-4x = -9x which matches with the middle term of x^2-9x+20

Therefore,

(x-k)(x-5) = x^2-9x+20

updates to

(x-4)(x-5) = x^2-9x+20

The -4 and -5 multiply to 20, and they also add to -9. This helps confirm we have the right k value.

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4 years ago
What is the solution to this system of equations?
wariber [46]

Answer:

A just sub y of first equation into second then solve for X value

8 0
3 years ago
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What is the simplified form of the rational expression below? 5x^2-5/3x^2+3x
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Beau has decided to use the method of elimination to solve the system of equations as shown below.
posledela

Answer:

See below  

Step-by-step explanation:

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Reason:

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How it helps:

If I eliminate the y terms, I have only one variable, the x variable, to deal with.

(1)  2x + 3y = 15

(2)   x -  3y =  3

(3) 3x         = 18

I can then easily solve Equation (3) for the value of x.

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