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3 years ago

Simplify the polynomial(-8×)+×+(-2×)

Mathematics

2 answers:

Morgarella [4.7K]3 years ago

8 0

Answer:

-9x

Step-by-step explanation:

Without the confusing parentheses, this "polynomial" becomes -8x + x -2x. If we take 2 away from -8, it becomes -10. If we add a positive x, it becomes -9x. Therefore, the answer is (the monomial) -9x.

iren2701 [21]3 years ago

7 0

Answer:

The correct answer is -9x

Step-by-step explanation:

It is given a polynomial,

p(x) = (-8x) + x + (-2x)

<u>To simplify p(x)</u>

p(x) = (-8x) + x + (-2x)

= -8x + x - 2x

= -8x - 2x + x

= -10x + x

= -9x

(-8x) + x + (-2x) = -9x

Therefore the correct answer is -9x

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3 years ago

a line is perpendicular to y = 3/7x - 2 and intersects the point (3,3). What is the equation of this perpendicular line?

snow_lady [41]

Answer:

y = -7/3x + 10

Step-by-step explanation:

Step 1: Find the slope of the perpendicular line

Do this by taking the negative inverse of the first line

m = -7/3

Step 2: Find <em>b</em>

y = mx + b

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3 = -7 + b

b = 10

You should get y = -7/3x + 10 as your final answer.

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2 years ago

Write a in slope-intercept form of the line that passes threw (-9,5) and (-3,3)

Amanda [17]

For this case we have that by definition, the equation of a line in the slope-intersection form is given by:

$y = mx + b$

Where:

m: It is the slope of the line

b: It is the cut-off point with the y axis

$m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}}$

We have the following points:

$(x_ {1}, y_ {1}): (- 9,5)\\(x_ {2}, y_ {2}): (- 3,3)$

Substituting we have:

$m = \frac {3-5} {- 3 - (- 9)}\\m = \frac {-2} {- 3 + 9}\\m = \frac {-2} {6}\\m = - \frac {1} {3}$

Thus, the equation is of the form:

$y = - \frac {1} {3} x + b$

We substitute one of the points and find "b":

$3 = - \frac {1} {3} (- 3) + b\\3 = 1 + b\\3-1 = b\\b = 2$

Finally, the equation is of the form:

$y = - \frac {1} {3} x + 2$

Answer:

$y = - \frac {1} {3} x + 2$

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3 years ago

Solve the equation and give explanation

Vedmedyk [2.9K]

Answer:

Step-by-step explanation:

(-1-2)^2+(-5-1)^2

(1+4)+(25+1)

5+26

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3 years ago

Read 2 more answers

Simplify the polynomial(-8×)+×+(-2×)​

Simplify the polynomial(-8×)+×+(-2×)