2 years ago

Which rotation transformed FGHI to F'G'H'I

Mathematics

2 answers:

kenny6666 [7]2 years ago

3 0

The answer is a 45 degree rotation Clockwise. Hope that helps! :)

Anettt [7]2 years ago

3 0

Clockwise 45° I believe

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an isosceles triangle has congruent sides of 20cm. the base is 10cm. find the height of the triangle.

dolphi86 [110]

Answer:

$\large\boxed{A_\triangle=25\sqrt{15}\ cm^2}$

Step-by-step explanation:

Look at the picture.

The formula of an area of a triangle:

$A_\triangle=\dfrac{bh}{2}$

b - base

h - height

We need a length of a height.

Use the Pythagorean theorem:

$leg^2+leg^2=hypotenuse^2$

We have:

$leg=5,\ leg=h,\ hypotenuse=20$

Substitute:

$5^2+h^2=20^2$

$25+h^2=400$ subtract 25 from both sides

$h^2=375\to h=\sqrt{375}\\\\h=\sqrt{(25)(15)}\\\\h=\sqrt{25}\cdot\sqrt{15}\\\\h=5\sqrt{15}\ cm$

Calculate the area:

$A_\triangle=\dfrac{(10)(5\sqrt{15})}{2}=\dfrac{50\sqrt{15}}{2}=25\sqrt{15}\ cm^2$

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3 years ago

Determine the vertex- f( x)= x^2 +4x +3 (2,-1) (-2, -1) (-3, -1) (-1, -2)

Grace [21]

The answer is ( -2 , -1 ) .

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2 years ago

What are all the keys that must be pressed, in correct order, on the calculator shown to find the value of 462 divided by 3?

Alexandra [31]

The second one, 4 6 2 / 3

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V125BC [204]

Answer:

Step-by-step explanation:

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