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3 years ago

PLEASE HELP I NEED TO TURN THIS IN SOON

Mathematics

2 answers:

german3 years ago

5 0

4 feet And 3 Feet
...........................

Dima020 [189]3 years ago

3 0

4 feet and 3 feet ....................

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What is the area of a regular nonagon with 10 cm side length and an apothem of 6 cm?

pickupchik [31]

The area of the regular nonagon is 270 sq cm.

Step-by-step explanation:

Given,

Each side of a regular nonagon (b) = 10 cm

The length of apothem (h) = 6 cm.

To find the area of the nonagon.

Formula

The area of a nonagon with b as each side and h as apothem is = 9( $\frac{1}{2}$ bh)

Now,

Putting the value of h and b we get,

Area = 9( $\frac{1}{2}$ ×10×6) sq cm = 270 sq cm

Hence, the area is 270 sq cm.

8 0

3 years ago

Bill Jorden has a 48-month installment loan with a fixed monthly payment of

melomori [17]

Answer:

7500

Step-by-step explanation:

no interest will have to be paid

8 0

3 years ago

The equation y = 2.50x determines the total cost, y, of buying x carnival tickets. Use the drop-down menu to complete the senten

PIT_PIT [208]

Answer: The total cost of 15 carnival tickets=$37.50

Step-by-step explanation:

We are given that ,

The equation $y = 2.50x$ represents the total cost of buying buying carnival tickets , where x= Number of carnival tickets and y= Total cost.

To find : The cost of 15 carnival tickets.

In the given equation , we substitute the value of x = 15 we get

$y = 2.50(15)=2.50\times15=37.5\\\Rightarrow\ y=37.5$

Thus , According to the equation, the total cost of 15 carnival tickets= $ 37.50

Hence , the correct answer is $ 37.50 .

8 0

3 years ago

Read 2 more answers

the performance score of 10 adults is recorded, and the results are 83 87 90 92 93 100 104 111 115 121 find the standard deviati

luda_lava [24]

Answer:

The standard deviation of the data set is $\sigma = 12.7906$ .

Step-by-step explanation:

The Standard Deviation is a measure of how spread out numbers are. Its symbol is σ (the greek letter sigma)

To find the standard deviation of the following data set

$\begin{array}{cccccccc}83&87&90&92&93&100&104&111\\115&121&&&&&&\end{array}$

we use the following formula

$\sigma = \sqrt{ \frac{ \sum{\left(x_i - \overline{X}\right)^2 }}{n-1} }$

Step 1: Find the mean $\left( \overline{X} \right)$ .

The mean of a data set is the sum of the terms divided by the total number of terms. Using math notation we have:

$Mean = \frac{Sum ~ of ~ terms}{Number ~ of ~ terms}$

$Mean = \frac{Sum ~ of ~ terms}{Number ~ of ~ terms}=\frac{83+87+90+92+93+100+104+111+115+121}{10} \\\\Mean = \frac{996}{10} =\frac{498}{5}=99.6$

Step 2: Create the below table.

Step 3: Find the sum of numbers in the last column to get.

$\sum{\left(x_i - \overline{X}\right)^2} = 1472.4$

Step 4: Calculate σ using the above formula.

$\sigma = \sqrt{ \frac{ \sum{\left(x_i - \overline{X}\right)^2 }}{n-1} } = \sqrt{ \frac{ 1472.4 }{ 10 - 1} } \approx 12.7906$

3 0

3 years ago

Describe and correct the error in finding the area of a sector with a radius of 6 centimeters and a central angle of 40

Jet001 [13]

Answer:

12.56

Step-by-step explanation:

Remark

Since we don't have anything other than the question, all I can do is answer the question. You are left with the task of figuring out the error.

Formula

Area = (central angle divided by 360 ) * pi r^2

Solution

Area = (40 /360) * 3.14 * 6^2

Area = 1/9 * 3.14 * 36

Area = 4 * 3.14

Area = 12.56

8 0

3 years ago