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2 years ago

A triangle has side lengths of 10, 20, and 30. what type of triangle is it

Mathematics

1 answer:

Alexeev081 [22]2 years ago

4 0

Right triangle bc a^2+b^2=c^2. (Pythagorean theorem)

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Which system of equations is best represented by this graph?

lisabon 2012 [21]

Answer:

B what the other dude said

Step-by-step explanation:

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2 years ago

A rectangle and a square have the same area. The length of the rectangle is seventy feet more than two times its width. The leng

Zanzabum

Using the side of the square find the area:

Area = 30^2 = 900 square feet.

The rectangles area is the same, 900 square feet.

Let the width = X

The length would be 2X + 70

Area = length x width

X * 2x+ 70 = 900

This expands to 2x^2 * 70x = 900

Use the quadratic formula to solve for x:

-70 +/- sqrt(70^2-4*2(-900))/2*2

X = 10

Width = x = 10 feet

Length = 2x + 70 = 90 feet

8 0

2 years ago

Need help with these two questions

MAVERICK [17]

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3 years ago

Suppose z varies directly with x and inversely with the

bija089 [108]

Answer:

K = 27

z = 1.89

Step-by-step explanation:

Check attachment below

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3 years ago

All three sides of a triangle are initially 5.0 long. One of the triangle's sides is oriented horizontally. The triangle is scal

zlopas [31]

Answer:

h = 3.62

Step-by-step explanation:

First, as both triangles have the same angles we can use the relationship of areas and sides corresponding to similar triangles as follows:

$relation\ between\ areas=( relation\ between\ sides)^2\\\frac{0.7A}{A}=(\frac{s}{5})^2\\s= 5\sqrt0.7= 4.18$

Now we know that the new triangle has sides of 4.18. Then, as these triangles are equilateral we can use the Pythagorean Theorem to find the height:

$4.18^2=h^2+(\frac{4.18}{2})^2\\h=\sqrt (4.18^2-2.09^2)=3.62 m\\h= 3.62$

Finally the height of this new triangle is 3.62 cm

6 0

2 years ago