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3 years ago

Need help!!!!!!How do I do this?

Mathematics

1 answer:

tiny-mole [99]3 years ago

6 0

Rotate 90 degrees clockwise which means to rotate it to the right. so the thing would be in the top right corner.
hope this helped.

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Tim has an encyclopedia in 5 volumesA–C, D–F, G–J, K–N, and O–Z. Other than alphabetically (ascending or descending), how many w

Ira Lisetskai [31]

The first book can be any one of the 5.
   For each of those . . .
The 2nd book can be any one of the remaining 4.
   For each of those ...
The 3rd book can be any one of the remaining 3.
      For each of those . . .
The 4th book can be either of the remaining 2.
   For each of those . . .
The 5th book is the last one remaining.

Total number of ways to arrange the 5 books is

   (5 · 4 · 3 · 2 · 1) = 120 .

Cross off alphabetically ascending (1 way), and alphabetically
descending (1 way), and you're left with (120 - 2) = 118 ways.

6 0

3 years ago

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Kathy is fencing in her yard that has an area of 800 square feet. Her yard is in the shape of a rectangle where the length is 60

anygoal [31]

Answer:

The dimensions of the yard are W=20ft and L=40ft.

Step-by-step explanation:

Let be:

W: width of the yard.

L:length.

Now, we can write the equation of that relates length and width:

$L=5W-60$ (Equation #1)

The area of the yard can be expressed as (using equation #1 into #2):

$Area=W*L=W*(5W-60)$ (Equation #2)

Since the Area of the yard is $800 ft^2$ , then equation #2 turns into:

$800=W*(5W-60)$

Now, we rearrange this equation:

$800=W*(5W-60)//800=5W^2-60W//5W^2-60W-800=0$

We can divide the equation by 5 :

$W^2-12W-160=0$

We need to find the solution for this quadratic. Let's find the factors of 160 that multiplied yields -160 and added yields -12. Let's choose -20 and 8, since $(-20)*8=160$ and $-20+8=-12$ . The equation factorised looks like this:

$(W-20)(W+8)=0$

Therefore the possible solutions are W=20 and W=-8. We discard W=-8 since width must be a positive number. To find the length, we substitute the value of W in equation #1:

$5*20-60=40$

Therefore, the dimensions of the yard are W=20ft and L=40ft.

7 0

3 years ago

After increase by 30 % it becomes $520?

Art [367]

I believe it is 364.

7 0

3 years ago

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sasha needs an average of 30 points to move to the next level in her competion . her scores in the first three events are 28, 35

salantis [7]

Sarah will need 27pts her lowest score

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3 years ago

What is the slope of the line ?

ElenaW [278]

Answer:

B. -2

Step-by-step explanation:

Slope (m) =

ΔY

ΔX

-2

= -2

θ =

arctan( ΔY ) + 360°

ΔX

= 296.56505117708°

ΔX = 3 – 0 = 3

ΔY = -2 – 4 = -6

Distance (d) = √ΔX2 + ΔY2 = √45 = 6.7082039324994

Answer from Gauth math

8 0

3 years ago

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