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skelet666 [1.2K]
2 years ago
14

Can x^2+4x-9=0 be simplified?

Mathematics
1 answer:
Aleksandr-060686 [28]2 years ago
3 0
Simplified? No solved for x? Yes

Solved with the quadratic equation yes is the answer in the picture

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A triangle has side lengths 2.83 m, 4 m, and 2.24 m. The angles measures are 45°, 63°, and 72°.
vagabundo [1.1K]

Answer:

  • D) acute scalene

Step-by-step explanation:

<h3>What are the definitions?</h3>

  • Obtuse triangle - the triangle with angle greater than 90°;
  • Acute triangle - the triangle with all interior angles under 90°;
  • Isosceles triangle - the triangle with a pair of equal sides;
  • Scalene triangle - the triangle with all three sides (or angles) of different measure.

<h3>What we have?</h3>

  • All sides are different and all angles are under 90°.

<h3>Which option is correct?</h3>

  • D) acute scalene

7 0
2 years ago
What are the steps to solving this equation <br><br>7x+3= 9x-3-2x
Luba_88 [7]
Simplify:

7x+3=7x-3

Now 7x goes away and you get 3=-3, which cannot be true, so there is no solution
7 0
2 years ago
Find 3/4ths of 40 ......................................................
Mkey [24]
30. 

3/4 is equal to 75%, so take 75% of 40 by multiplying .75 by 40 to get 30
5 0
2 years ago
Read 2 more answers
There is a line that includes the point (6,9) and has a slope of 3. What is its equation in
Nostrana [21]

Answer:

y=3x-9

Step-by-step explanation:

6 0
2 years ago
What is the equation of a line that passes through the point (1, 8) and is perpendicular to the line whose equation is y=x/2+3 ?
Svet_ta [14]

<u>Answer</u>

y = -2x + 10


<u>Explanation</u>

The general equation for a straight line is y = mx + c where m and c are gradient and y-intercept respectively.

y=x/2+3 = y (1/2)x + 3

gradient = 1/2

Gradient of the line perpendicular to y=x/2+3 is;

m × 1/2 = -1

m = -2

Now we find the equation of a line passing through (1,8) and have a gradient of -2.

-2 = (y - 8)/(x - 1)

-2(x - 1) = (y - 8)

2 -2x = y - 8

y = -2x + 10


3 0
3 years ago
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