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spayn [35]
3 years ago
9

What is the area of this figure?

Mathematics
1 answer:
lapo4ka [179]3 years ago
6 0
The area of this figure is 81m^2.
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A factory that manufactures bolts is performing a quality control experiment. Each object should have a length of no more than c
disa [49]

Answer:

There is sufficient evidence. A further explanation is provided below.

Step-by-step explanation:

According to the question,

The alternative as well as null hypothesis will be:

H_0:\mu = 16

H_a:\mu>16

The test statistics will be:

⇒ z = \frac{\frac{\bar x - \mu}{\sigma} }{\sqrt{n} }

By putting the values, we get

⇒    =\frac{\frac{16.06-16}{0.24} }{\sqrt{96} }

⇒    =\frac{\frac{0.06}{0.24} }{\sqrt{96} }

⇒    =2.45

Or,

The p-value will be:

= 0.0071

i.e.,

⇒ p-value< \alpha

Thus the above is the correct answer.

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3 years ago
Which of the following relations , if any is a function. Please help with this one
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Answer:

A

Step-by-step explanation:

this is because an input can only have one output, but an output can have many input

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Absolute value inequality
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Radius question <br><br> * answers listed on pic but I just need a step by step explanation *
Rama09 [41]

Step-by-step explanation:

Let A(x) be the area function of given rectangle.

Radius of circle = 7x

Therefore, length of rectangle = 14x

Width of rectangle = 7x

\therefore \: A(x) =l\times w \\  =  14x   \times  {(7x)} \\ =98x^2 \\  \huge \red{ \boxed{ \therefore \: A(x) =98 {x}^{2} }}

Let P(x) be the Perimeter function of given rectangle.

P(x) =2(l + w) \\= 2(14x + 7x)\\=2\times 21x\\= 42x\\\huge \red{ \boxed{ \therefore \:P(x)= 42x}}

3 0
3 years ago
Read 2 more answers
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