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just olya [345]
3 years ago
11

15. Show, using a numerical example, that the expressions (x+2) and x² + 4 are not equivalent.

Mathematics
1 answer:
RideAnS [48]3 years ago
4 0

Answer:

Check explanation below.

Step-by-step explanation:

For this, Ill assign X the value of 2.

(2+2)=(2^2+4)

4\neq 8

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2 years ago
Read 2 more answers
-8x = 140<br><br> Solve for x
Alekssandra [29.7K]

Answer:

<h2><em><u>x = -17.5</u></em></h2>

Explanation:

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  • Divide both sides by -8

-8x / -8 = 140 / -8

x = ⁻³⁵⁄₂

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x = -17.5

6 0
3 years ago
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What’s is the slope of the lin
Lady bird [3.3K]

Answer:

1/3

Step-by-step explanation:

<em>Method 1.</em>

slope = rise/run

Rise is vertical distance.

Run is horizontal distance.

Find two points that are easy to read (on grid intersections):

(2, -1) and (5, 0).

Start at (2, 1). You need to go to (5, 0) by moving only vertically and horizontally. Go up 1 unit. That is a rise of 1. Now go right 3 units. That is a run of 3.

rise = 1

run = 3

slope = rise/run = 1/3

<em>Method 2.</em>

Use the slope formula and two points on the line.

slope = m = \dfrac{y_2 - y_1}{x_2 - x_1}

Use points (2, -1) and (5, 0).

slope = m = \dfrac{0 - (-1)}{5 - 2}

slope = m = \dfrac{0 + 1}{3}

slope = m = \dfrac{1}{3}

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8 0
3 years ago
What are the zeros of the function? what are their multiplicities?<br> f(x)=x^4-4x^3+3x^2
-Dominant- [34]
Since each term contains x, x= 0 is one answer Also as x^2 is a factor  it has duplicity 2.
Factoring:-

x^2 (x^2 - 4x + 3) = 0
x^2( x - 3)(x - 1) = 0

so x = 3 and x = 1 are also zeros


Answer:-   x = 0 (duplicity 2), x = 1 and x = 3.
4 0
3 years ago
Find two numbers whose difference is 30 and whose product is a minimum.
guapka [62]

Answer:60-30 I guess

Step-by-step explanation:n60-30=30

3 0
2 years ago
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