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777dan777 [17]
3 years ago
6

Triangle PQR has the following coordinates:

Mathematics
1 answer:
fiasKO [112]3 years ago
3 0

Answer:

(-13,6)

Step-by-step explanation:

Rule for rotation 90 degrees clockwise around the origin

( x , y ) --------> ( y , -x )

Explanation of rule:

Swap the x and y values

Change sign of new y value

Find Q' after a rotation 90 degrees clockwise around the origin

Given coordinates of Q

(-6,-13)

Apply rotation 90 degree clockwise rule

(-6,-13) -------> swap x and y values -------- -> (-13,-6) -------> change sign of new y value --------> (-13,6)

Q' will be at (-13,6) after a rotation 90 degrees clockwise around the origin

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Plz I need help with this I am struggling failing math
Goryan [66]

Answer:

CB = 5, m\angle{BDA} = 23^\circ

Step-by-step explanation:

Assuming that the marks next to angle D mean that \angle{BDA} \cong \angle{BDC}, then there is enough information to conclude that the two right triangles are congruent (HA theorem--hypotenuse/angle).

Then all the corresponding parts of the two triangles are congruent, including segments BA and BC, making them the same length.

4x + 1 = 9x - 4

Solving for x,

1 = 5x - 4

5 = 5x

1 = x

Pluggint x = 1 into the two expressions reveals that the length of segment CB is 5.

The two small angles at D are congruent, so m\angle{BDA}=23^\circ.

8 0
3 years ago
1/2x=9 answer this please
solong [7]

Answer:

X=18

Step-by-step explanation:Give me the brainliest please :)

8 0
3 years ago
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What number would you multiply (6x-y+4) by so that the result is an equivalent expression to (3x+9x)-(2y-8) Be sure to enter you
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Answer:

2

Step-by-step explana

 (6x-y+4)*2= 12x -2y+8= (3x+9x)-(2y-8)

3 0
3 years ago
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The canopy of a parachute is a semicircle with a radius of 13 feet. A company that is making parachutes for a Fourth of July cel
Mars2501 [29]

ANSWER

(2). 88.5 ft²

EXPLANATION

The parachute is in the form of a semicircle, so the area of the entire parachute can be calculated using the formula,

Area=½ πr²

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We substitute the radius to get

Area= \frac{1}{2} \pi \times  {13}^{2}

= 265.46457922834  \:  \: {ft}^{2}

The company required that, each parachute be made from equal parts of red, white, and blue fabric.

Hence, the fabric of each color needed is

= \frac{265.46457922834}{3}  = 88.4882

To the nearest tenth, we have,

= 88.5 {ft}^{2}

8 0
4 years ago
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﹛(-4,3), (-2,-1), (0,0), (1,4), (2,6)﹜Given this set, what is the domain?
AlexFokin [52]
The domain is the set of all the values of x . The range is the set of all the values of y .
Domain : {-4 , -2 ,0 ,1 }
Range : { 3 , -1 , 0, 4 }
7 0
3 years ago
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