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Semenov [28]
3 years ago
12

The product of two numbers is 225, but the sum is -30. what are these two numbers?

Mathematics
1 answer:
jasenka [17]3 years ago
4 0
The two numbers are both -15

-15 x -15= 225

-15+ -15= -30
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How do you find the height of a triangle (to calculate area)?
Lilit [14]

Answer:

The height of the triangle could be found by the <u>Pythagoras theorem</u>, where the result is, with the data of the exercise:

  • <u>Height of the triangle = 10.392</u>

And the area of the triangle is:

  • <u>Area of the triangle = 31.176 units^2</u>

Step-by-step explanation:

When you have two measurements of a triangle, as the case in the picture, you can find the third with the <em>Pythagoras theorem</em>, which is:

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As you can see in the picture, the measurement of the hypotenuse is 12, and the opposite leg could be 6, for this reason, we're gonna clear the adjacent leg of the formula above:

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Now, we can replace the values in the formula obtained:

  • (adjacent leg)^2 = hypotenuse^2 - (opposite leg)^2
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Now, as we just need the adjacent leg, we take the square root of both sides:

  • adjacent leg = \sqrt{108}
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Now, with these data, we can find the area of the triangle with the next formula:

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  • And we replace the measurements:
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As the image does not contain units, it would be simply this number, however, <em>you should know that the area units are usually given squared, for example: in^2 or ft^2</em>.

4 0
2 years ago
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vlabodo [156]
2x - 3y = 6
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y = 2/3x - 2....the slope here is 2/3. A parallel line will have the same slope

y = mx + b
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now we sub and find b, the y int
-3 = 2/3(9) + b
-3 = 6 + b
-3 - 6 = b
-9 = b

so ur parallel equation is : y = 2/3x - 9 <== or 2x -3y = 27
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