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2 years ago

Help please !! thank youu

Mathematics

1 answer:

VLD [36.1K]2 years ago

3 0

Answer:

d = √91 ft = about 9.53 ft

Step-by-step explanation:

use pythagorean theorem which is a²+b²=c²

(the hypotnuse which is opposite side of the right angle is always going to be C in the pythagorean theorem)

a = 3 b = ? c = 10

(3)² + b² = (10)²

9 + b² = 100

subtract 9 from both sides

b² = 91

take the square root of both sides

b = ±√91

so the side d = √91 ft = about 9.53 ft

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2 years ago

3 Ximena draws an X shape in the coordinate plane as shown. Draw the images of

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When a shape is rotated, it must be rotated around a point.

<em>See attachment for the image of each rotation.</em>

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The top coordinates of the X shape are:

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$(x,y) \to (-y,x)$

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For 180 degrees rotation, the rule is:

$(x,y) \to (-x,-y)$

So, we have:

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$B' = (-1,0)$

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$D' = (-4,0)$

For 270 degrees counter rotation, the rule is:

$(x,y) \to (y,-x)$

So, we have:

$A' = (0,0)$

$B' = (0,-1)$

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$D' = (0,-4)$

See attachment for the image of each rotation