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STALIN [3.7K]
3 years ago
8

MATH PLEASE HELP

Mathematics
1 answer:
maks197457 [2]3 years ago
7 0


Answer:
Area of the shaded region is 200 mm squared

Perimeter is 60mm



Explained:

Larger: 15x15=225
Smaller: 5x5=25
Area = 225-25=200
The perimeter of the shaded figure is 15x4=60mm
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1/2x + x + 1/5y + y = 32
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(1/2)x + x + (1/5)y + y = 32

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Triangle JKL is shown below.
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Where are the answer choices ?
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PLEASEE<br> Solve<br> x=6<br> 4x +y =20
Tanya [424]

Answer: y = -4

Step-by-step explanation:

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8 0
2 years ago
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Assume women’s heights are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. a. If one wom
Zarrin [17]

Answer:  a)  0.5636       b) 0.7881

Step-by-step explanation:

We assume that women’s heights are normally distributed .

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Also, The population mean = \mu=\text{63.6 inches} ; Standard deviation: \sigma=\text{2.5 inches}

a) Formula for z:-

z=\dfrac{x-\mu}{\sigma}

Put x= 64, we get

z=\dfrac{64-63.6}{2.5}=0.16

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P(z

Hence, the probability that her height is less than 64 inches = 0.5636

b. Sample size : n= 25

Then , the formula for z :-

z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}

Put x= 64, we get

z=\dfrac{64-63.6}{\dfrac{2.5}{\sqrt{25}}}=0.8

Then, the probability that they have a mean height less than 64 inches.:_

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Hence, the probability that they have a mean height less than 64 inches. =0.7881

7 0
3 years ago
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Thehe minimum weight of the 20 student is 20 kg.If their range is 20 kg,find the maximum weight and the coefficient of range​
Anastasy [175]

Answer:

1/3

Step-by-step explanation:

Range=x maximum (xm) –x minimum (x0)

xm=20+20=40

Coefficient of Range= xm–x0/xm+x0

=40-20/40+20

=20/60

=2/6

=1/3

5 0
3 years ago
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