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3 years ago

Urgent please help..

Mathematics

2 answers:

Lesechka [4]3 years ago

6 0

The person above is correct

nlexa [21]3 years ago

5 0

8.60 cm is the answer to your question and i used calculator.net for help

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zubka84 [21]

1
$5 { {?}^{?} }^{?}$

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3 years ago

What is the approximate area of the figure 14 feet by 5 feet

Amiraneli [1.4K]

Answer:

Step-by-step explanation:

8 0

3 years ago

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Suppose payments were made at the end of each month into an ordinary annuity earning interest at the rate of 2.5%/year compounde

Kisachek [45]

Answer:

Monthly payment= $440.71

Step-by-step explanation:

Giving the following information:

Mothly interest rate (i)= 0.025/12= 0.00208

Number of periods (n)= 12*10= 120 months

Future Value (FV)= $60,000

<u>To calculate the monthly payment, we need to use the following formula:</u>

Monthly payment= (FV*i) / [(1+i)^(n) - 1]

Monthly payment= (60,000*0.00208) / [(1.00208^120) - 1]

Monthly payment= $440.71

6 0

3 years ago

There are x ducks in a pond. The number of swans in the pond is equal to the square root of the number of ducks. If the total nu

Mashcka [7]

Answer:

<h2>There are 9 ducks and 3 swans in the pond.</h2>

Step-by-step explanation:

According to the problem, the number of swans in the pond is equal to the square root of the number of ducks, this can be expressed as

$s=\sqrt{x}$

Where $x$ represents the number of ducks in the pond.

If the total number of swans and ducks is 12, the expression would be

$s+x=12$

Now, we replace the first equation in the second one

$\sqrt{x} +x=12$

Then, we elevate each side to the square power

$\sqrt{x} =12-x\\(\sqrt{x} )^{2} =(12-x)^{2} \\x=144-24x+x^{2} \\x^{2} -25x+144=0$

Using a calculator, the roots are 9 and 16.

Let's evaluate each value.

For $x=9$ , $s=\sqrt{9}=3$ , and $9+3=12$ , which is true.

For $x=16$ , $s=\sqrt{16} =4$ , and $16+4=20$ , which is false.

Therefore, there are 9 ducks and 3 swans in the pond.

7 0

3 years ago

Read 2 more answers

To construct a regular octagon, what measure would be necessary for each interior angle? Construct an angle of that measure.

svp [43]

Answer:

$135^\circ$

Step-by-step explanation:

Given that, a <em>regular octagon </em>is to be constructed.

To find:

Each angle in the octagon = ?

Solution:

We know that a regular triangle (polygon with 3 sides) has an interior angle of $60^\circ$ .

And a regular quadrilateral (square) has an interior angle of $90^\circ$ .

Therefore, formula for interior angle of a regular polygon with $n$ number of sides can be given as:

$\dfrac{n-2}{n}\times 180^\circ$

For an octagon, we have $n=8$ .

Value of Interior angle in a regular octagon:

$\dfrac{8-2}{8}\times 180^\circ=\dfrac{6}{8}\times 180^\circ=\bold{135^\circ}$

Kindly refer to the attached image for the angle of $135^\circ$

6 0

4 years ago