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shtirl [24]
3 years ago
13

!00 points HELP!!!!! Missy’s rotation maps point K(17, –12) to K’(12, 17). Which describes the rotation?

Mathematics
2 answers:
RSB [31]3 years ago
8 0

Answer:

90° counterclockwise rotation

Plot the situation


ohaa [14]3 years ago
8 0

Answer:

90° counterclockwise rotation

Step-by-step explanation:

A 90° counterclockwise rotation maps every point (x, y) to (-y, x).

K(17, -12) is mapped to K'(12, 17).  The x- and y-coordinates are switched and the y-coordinate is negated (before being switched).  This means

(x,y)→(-y,x).

This is a 90° counterclockwise rotation.

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An office building casts a 90 foot shadow. At the same time of day, a 5 foot woman standing near the building casts an 8 foot sh
professor190 [17]
The answer is 56.25ft
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3 years ago
7cm<br>10cm<br>4cm<br>The area of the compound shape is 106cm.<br>work out the size of x.​
uranmaximum [27]

Answer: 9cm

Step-by-step explanation:

7x10=70cmx^{2}

4(x)=4x

1.) 70+4x=106 (subtract 70 on both sides)

2.)4x=36 (divide 4 on both sides)

3.)x=9

5 0
3 years ago
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I barely ask questions but I really need help with #3 and a little with 4. On number four I got 1 1/20 which doesn’t seem right.
uranmaximum [27]
Let r, g and b represent red, green and blue.

r+g+b = 74

r=g-1

b=r+g

Again, r+g+b = 74.  Let's substitutte r+g for b:  r+g+(r+g) = 74.

Next, let's eliminate r.  Use r=g-1.  Then      g-1  + g + g-1 + g = 74

Combining the g terms,  4g - 2 = 74     => 4g = 76   =>  g = 19

Recall that r=g-1
and 
b=r+g

Find r.  If r=g-1, and g=19, then r = 19-1=18

Find b:  b = r+g = 18+19=37

So there are 37 blue candies, 18 red candies and 19 green candies.

Check:  37+18+19=74 ???  Yes.
8 0
3 years ago
• 6x – 15y = 15<br> y=2 x - 1<br> 5
yuradex [85]

Answer:

Slope=  

2.000

0.800

​  

=0.400

x−intercept=  

2 /5

​  

=2.50000

y−intercept=  

−5 /5

​  

=  

−1

1

​  

=−1.00000

Step-by-step explanation:

STEP

1

:

Pulling out like terms

1.1     Pull out like factors :

  6x - 15y - 15  =   3 • (2x - 5y - 5)  

Equation at the end of step

1

:

STEP

2

:

Equations which are never true

2.1      Solve :    3   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Equation of a Straight Line

2.2     Solve   2x-5y-5  = 0

Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line  2x-5y-5  = 0 and calculate its properties

8 0
3 years ago
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Elis [28]

Answer:21

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4 0
3 years ago
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