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3 years ago

MATH HELP ASAP PLSSSS

Mathematics

2 answers:

mr_godi [17]3 years ago

6 0

Hey there! :)

Answer:

(30, 0).

Step-by-step explanation:

Solve for the x-intercept, or zero of the equation by setting the equation equal to 0:

y = -2/5x + 12 becomes:

0 = -2/5x + 12

Subtract both sides by 12:

-12 = -2/5x

Divide both sides by -2/5:

-12 (-5/2) = -2/5x (-5/2)

30 = x.

Therefore, the x-intercept is at (30, 0).

Citrus2011 [14]3 years ago

5 0

Answer:

(30,0)

Step-by-step explanation:

y=0

-2/5 *x +12=0

2x/5=12

2x=12*5

2x=60

x=60/2

x=30

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See explanation and attachment.

Step-by-step explanation:

One of the ways to represent polynomial is the use of algebraic tiles.

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iris [78.8K]

Answer:

x = 2, y = -2, AB = 142

Step-by-step explanation:

The fact that X is the midpoint gives you two relations:

AX = XB

AX + XB = AB

Since you have two unknowns, this number of equations is sufficient to find their values. Substituting the given expressions in the above equations, you have ...

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24x +40 -3y +21 -22x = 5x +y +23 -4x +48

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x -4y = 10 . . . . . . . . . . . . . . . . subtract x+y+61

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2x -3y +61 +x +y +71 = 2x -5y +128

3x -2y +132 = 2x -5y +128 . . . . . simplify the left side

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x -4(-2) = 10 . . . . substitute for y

x +8 = 10 . . . . . . .evaluate

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The desired values are x = 2, y = -2, AB = 142.

_____

You check the answer by filling the values into the expressions given in the problem statement and seeing if you get consistent results. Here, we used the simplified expressions, rather than the original expressions, so if we did the simplification wrong, we may have the wrong answer. It is always best to use the original equations. (A machine solver working with the original equations confirms our result, so "confidence is high.")

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