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jok3333 [9.3K]
3 years ago
9

Need some answers for this one

Mathematics
1 answer:
Schach [20]3 years ago
4 0

Answer:

20.6

Step-by-step explanation:

Since the diameter of each circle is 4, the dimensions of the rectangle is 8x12

The area of the whole rectangle is 96

Now we need to find the area of the circles

The area of 1 circle is 2^{2} *\pi =12.56...

So the area of all 6 circles is 12.56*6= 75.39...

So to find the area of yellow you have to subract the area of circle from the overall area of the rectangle

96-75.4=20.6

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A local company makes a candy that is supposed to weigh 1.00 ounces. A random sample of 25 pieces of candy produces a mean of 0.
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Answer: (0.994, 0.998)

Step-by-step explanation:

Given : Sample size : n= 25 < 30 , so we use t-test.

\overline{x}=0.996\ \ ;\ s=0.004

Critical t-value use for 98% confidence :

t_{n-1,\alpha/2}=t_{24,0.01}=2.492

Formula to find the confidence interval :-

\overline{x}\pm t_{\alpha/2}(\dfrac{\sigma}{\sqrt{n}})

i.e. 0.996\pm (2.492)(\dfrac{0.004}{\sqrt{25}})

=0.996\pm 0.0019936\approx0.996\pm0.002\\\\=(0.996-0.002,\ 0.996+0.002)\\\\=(0.994,\ 0.998)

Hence, the required confidence interval : (0.994, 0.998)

6 0
3 years ago
What is the ethnic makeup of Brazil
siniylev [52]

Answer:

white 47.7%, mulatto (mixed white and black) 43.1%, black 7.6%, Asian 1.1%,

Step-by-step explanation:

white 47.7%,

mulatto (mixed white and black)

43.1%, black 7.6%,

Asian 1.1%,

5 0
3 years ago
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Which expression is equivalent to the given expression?
marishachu [46]

Answer:

The third option.

Step-by-step explanation:

(\frac{4xy^3}{x^2})^2\\\\=(\frac{4y^3}{x})^2\\\\=\frac{16y^6}{x^2}

Hence the 3rd option.

4 0
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What is the equation of the graphed line written in standard form?
Dmitry_Shevchenko [17]

Answer:

A

Step-by-step explanation:

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Trapezoid A B C D is shown. A diagonal is drawn from point B to point D. Sides B C and A D are parallel. Sides B A and C D are c
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40 degrees un edge

Step-by-step explanation:

8 0
3 years ago
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