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Yuliya22 [10]
3 years ago
10

Area & perimeter needs help on

Mathematics
2 answers:
Anastaziya [24]3 years ago
7 0
The perimeter is the length of the outline of a shape. To find the perimeter you have to add all the lengths of all four( or so) sides.


          Say that this (OOO) is a box



There is y, and x. Finding both sides will get you the perimeter
Example =


(OOO)x
  y

You would have to add both sides of the box to get your answer

it would be

                              y
                          x(OOO)x
                               y



Now, the area is the measurement of the surface of a shape. To find the area of a shape with four( or more) sides, you = Multiply the length and the width of a shape with four(or more) sides.


So, imagine this (OOO) is a box


    4
4(OOO)4
    4



I hope I could help! :)




Have a wonderful rest of the day.
NNADVOKAT [17]3 years ago
5 0

Area= L*W

Perimeter= S+S+S+S

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Likurg_2 [28]
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3 years ago
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The seventh grade class is putting on a variety show to raise money. It cost $700 to rent the
Nataly_w [17]

Well, you would need to compensate for the cost of the banquet hall adding an addition $700 to the goal of $1000.

If you need to raise at least $1700 you can write this inequality.

Let x represent the number of tickets sold.

15x≥1700

x≥ 114 (rounded to the nearest whole number because you can't sell half a ticket)

So, at least 114 tickets need to be sold.

6 0
3 years ago
PLEASE HELP
Zielflug [23.3K]

Answer:

  • x = 4
  • WX = WY = 25
  • XY = 17

Step-by-step explanation:

The triangle is isosceles with side WX equal to side WY:

  WX = WY

  9x -11 = 7x -3

  2x = 8 . . . . . add 11-7x

  x = 4

Then the side measures are ...

  WX = WY = 7(4) -3 = 28 -3 = 25

  XY = 4(4) +1 = 16 +1 = 17

5 0
3 years ago
7. After boiling, the 18 liters of water was reduced to 7 liters. How many water was
e-lub [12.9K]

Answer:

C

Step-by-step explanation:

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4 0
3 years ago
Are you smarter than a second grader? A random sample of 60 second graders in a certain school district are given a standardized
denis23 [38]

Answer:

We accept H₀ , we do not have enought evidence for rejecting H₀

Step-by-step explanation:

Normal Distribution

sample size   n  =   60

standard deviation     σ  =  15

1.Hypothesis Test : Is a one tailed-test on the right

H₀      null hypothesis             μ₀  = 50

Hₐ    alternative hypothesis   μ₀  > 50

2.-We will do the test for  a significance level   α =  0,01 tht means for a 99% interval of confidence

then z(c)  =  2.32

3.- We compute z(s)  

z(s)  =  [ ( μ - μ₀ ) /( σ/√n )       ⇒  z(s)  =  (  2 * √60 ) / 15

z(s)  = 15.49/15                        ⇒   z(s)  = 1.033

4.- We compare values of  z(c)   and z(s)

z(s)  <  z(c)      1.033 < 2.32

z(s) is in the acceptance region so we accept H₀ , we do not have enough evidence for rejecting H₀

6 0
3 years ago
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