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Jlenok [28]
3 years ago
13

Square root symbol 450 to the nearest hundreth

Mathematics
2 answers:
hoa [83]3 years ago
8 0
The answer is 21.21
Elanso [62]3 years ago
3 0
21.21 is the answer.                      

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Why do you need to change the signs in -x^2+6x+m=0 ?
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It isn't necessary but having a positive coefficient for x^2 makes things like completing the square and factoring easier.

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What is (-2,2) multiplied by 2.5 and (2,1) multiplied by 2.5
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(-2, 2) multiplied by 2.5 is given by 2.5(-2, 2) = (-5, 5)

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Find the lengths of g, h, and j. Round answers to the nearest tenth. (marking brainliest for correct)
Bezzdna [24]

Answer:

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Step-by-step explanation:

The overall shape given and the shape within, are both right triangles. With right triangles, you are allowed to use the pythagorean theorem formula (a^{2} + b^{2} = c^{2}) in order to solve for some sides. In this case, that would be j and h. The five in the smaller triangle is represented by b and the 12 is the hypotenuse so it is represented by c. When you plug in those numbers in the pythagorean theorem formula, you will find the value of j to be 13. When looking at this, we see that 12 is the second greatest value in the right triangle values that we just found, so we know the the opposing angle for that one will be 60 degrees. The 5's opposing side is therefore 30 degrees. When subtracting 90 and 30, we get 60, so therefore you can use the 30 60 90 formula to find the sides of the bigger triangle. The 60 degrees represents g. This formula will be a\sqrt{3}. The a is 12 since it is the smallest value. So therefore, g is 12\sqrt{3}, which is 20.8. Now that we have this side, we can just use the pythagorean theorem formula to find the remaining side. Therefore, h is going to be 24

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3 years ago
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