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3 years ago

What the domain and range for these points: (-6,4), (-3,2), (0,6), (3,0), (6,3)

Mathematics

1 answer:

Andru [333]3 years ago

8 0

Answer:

Step-by-step explanation:

the domain is : A = {-6, -3, 0, 3, 6}

the range is : B={4, 2, 6, 0, 3}

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Ruth decides to test the method of proportions and similar

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Answer:

Step-by-step explanation:

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3 years ago

Find the area of the shaded region in the simplest form

balandron [24]

Answer:

A = 24t² + 2t

Step-by-step explanation:

The shaded area (A) is calculated as

A = area of outer square - area of rectangle

= (5t)² - t(t - 2)

= 25t² - t² + 2t

= 24t² + 2t

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3 years ago

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brilliants [131]

Answer:

a) $\bar{x}$ =4.63 md=4.55 mo= 1.9 b) Sample Standard Deviation≈ 2.58 Coefficient of Variation=55.72% Sample Range=6.9

Step-by-step explanation:

Mean

$a)\bar{x}=\frac{1.9+ 2.3+ 5.7+ 5.2+ 1.9+ 8.8+ 3.9+ 7.3}{8} =\frac{37}{8}=4.625=\approx 4.63$

For the Median, we have to order the entries. So, ordering it goes:

1.9 1.9 2.3 3.9 5.2 5.7 7.3 8.8

Since we have even entries $\frac{\frac{n}{2}+\frac{n}{2} +1}{2}=\frac{4th+5th}{2}=\frac{3.9+5.2}{2}=4.55$

mode

The mode for this data 1.9 1.9 2.3 3.9 5.2 5.7 7.3 8.8 is 1.9

Sample Standard Deviation

Here it is the formula to calculate it:

$_{x}=\sqrt{\frac{\sum (x_{i}-\bar{x})^{2}}{n-1}}\\ S_{x}=\sqrt{\frac{46.855}{7}}\approx 2.58$

Coefficient of Variation

CV is the quocient between sample Standard deviation over Mean and it is used to make comparisons.

$CV=\frac{S_x}{\bar{x}}*100%=\frac{2.58}{4.63} \approx 55.72%$

Range

The difference between the highest and the lowest value of this sample

8.8-1.9=6.9

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3 years ago

What is the perimeter of an equilateral triangular lamina of side length 12 cm

Marina86 [1]

Answer:

It is 36 cm

Step-by-step explanation:

In equilateral triangle, all sides are equal.

${ \sf{perimeter = side + side + side}}$

but side = 12 cm

${ \sf{p = (12 + 12 + 12)}} \\ { \sf{p = 36 \: cm}}$

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