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Sergio [31]
3 years ago
10

Megan has a pen for her dog. The dimensions of the pen are in meters (m) as shown below.

Mathematics
2 answers:
Makovka662 [10]3 years ago
6 0
A.22m squared........
adoni [48]3 years ago
4 0

Answer:

22 m²

Step-by-step explanation:

  • I think jxxjxjcjnfvnjvchhd
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98-x2=0 solve this with the quadratic formula
Mars2501 [29]

Answer:

             x∈{-7√2, 7√2}

Step-by-step explanation:

98-x^2=0\\\\-x^2+98=0\\\\a=-1\,,\ \ b=0\,,\ \ c=98\\\\x_1=\dfrac{-0-\sqrt{0^2-4\cdot(-1)\cdot98}}{2\cdot(-1)}=\dfrac{-\sqrt{4\cdot49\cdot2}}{-2}=\dfrac{-2\cdot7\sqrt{2}}{-2}=7\sqrt2\\\\x_2=\dfrac{-0+\sqrt{0^2-4\cdot(-1)\cdot98}}{2\cdot(-1)}=\dfrac{2\cdot7\sqrt{2}}{-2}=-7\sqrt2

7 0
3 years ago
In a survey of market, it is found that 143 persons use white toothpaste and 135 use red toothpaste. If 70 of them use both the
denpristay [2]

Answer:

let W and R represent white toothpaste and red toothpaste represently

n(W)=143

n(R)=135

n(WnR)=70

n( WuR)=?

Now,

n(WuR)=n(W)+n(R)_n(WnR)

=143+135_70

=208

that's all don't forget to write therefore.

6 0
3 years ago
Can i please get the answer to number 6 ?
IrinaVladis [17]
A full circle in radians is 2π, and in degrees it's 360°. I want to convert the 72° to radians:

72° in radians = 72/360 * 2π = 2/5π

The circumference of a full circle is the number of radians times the radius. (ie., 2πr), so the JK part of the circle is:

5* 2/5π simplifies to 2π
6 0
3 years ago
I need to know on how to do these problems
NARA [144]
Just remember that 
1meter=100 cm
81.66m=81.66*100=8166 cm
3 0
3 years ago
Read 2 more answers
The perimeter of parallelogram PQSR is 74cm. What is QS?
saveliy_v [14]

parallelogram , opposite sides are equal

so

PR = QS

and

PQ = RS

4x - 1 = 3x + 7

x = 8


PQ = 4(8) - 1 = 32 -1 = 31

Given P = 74 cm


74 - 2(31) = 12

PR = QS = 12/2 = 6


Answer

QS = 6 cm


6 0
3 years ago
Read 2 more answers
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