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AlekseyPX
3 years ago
14

Which statement is false? A.The all them of a regular polygon is perpendicular to the side. B.the radius of a regular polygon is

always greater than the all them. C.the perimeter of a regular hexagon is 6r. D.the perimeter of a regular n-gob is the area divided by the all them.
Mathematics
1 answer:
ahrayia [7]3 years ago
3 0
D. the perimeter of a regular n-gob is the area divided by the all them.

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How to tell when to use sin, cos or tan​
lions [1.4K]

Answer:

Step-by-step explanation:

Keep in mind that these three trig functions can be interpreted as being the ratios of the side lengths of a triangle:

            opposite side

sin x = ----------------------

              hypotenuse

            adjacent side

cos x = ----------------------

              hypotenuse

            opposite side

tan x = ----------------------

             adjacent side

In the case where you have a right triangle and know the lengths of two of its three sides, that knowledge dictates which of the above trig functions to use in "solving the triangle."

------------------------------------------------------------------------------------------------------------

If, for example, the "opposite side" of a triangle is 3 and the "hypotenuse" is 5, we'd choose to use the sine function to find the angle opposite the "opposite side:"

            opposite side       3 units

sin x = ---------------------- = -------------

              hypotenuse         5 units

Find x by using the inverse sine function:

Angle x = arcsin 3/5 = 0.644 radians or 36.9 degrees.

3 0
3 years ago
(x + 26)<br> (3x)<br> X=<br><br> Helpppp
evablogger [386]

Answer:

x = 13

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Equality Properties

<u>Geometry</u>

  • Vertical Angles

Step-by-step explanation:

<u>Step 1: Set up equation</u>

3x = x + 26

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Subtract <em>x</em> on both sides:                    2x = 26
  2. Divide 2 on both sides:                       x = 13
3 0
3 years ago
(5x + 4)(3x2 – 7x – 2)
Vaselesa [24]

Answer:

 5x4 - 3x2 + 9x - 7

Step-by-step explanation:

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 (((5•(x4))+7x)+2)-((3x2-2x)+9)

Step  2  :

Equation at the end of step  2  :

 ((5x4 +  7x) +  2) -  (3x2 - 2x + 9)

Step  3  :

Checking for a perfect cube :

3.1    5x4-3x2+9x-7  is not a perfect cube

Trying to factor by pulling out :

3.2      Factoring:  5x4-3x2+9x-7  

7 0
3 years ago
{(5²)} ³×5⁴}÷5⁷ simplify and express the following as exponent​
Stels [109]

Answer:

The answer is 5³.

Step-by-step explanation:

You have to apply Indices Law :

{a}^{m}  \times  {a}^{n} ⇒   {a}^{m + n}

{a}^{m}  \div  {a}^{n}⇒ {a}^{m - n}

{ ({a}^{m} )}^{n}  =  {a}^{mn}

So for this question :

( {( {5}^{2}) }^{3}  \times  {5}^{4} ) \div  {5}^{7}

= ( {5}^{6}  \times  {5}^{4} ) \div  {5}^{7}

=  {5}^{10}  \div  {5}^{7}

=  {5}^{3}

8 0
3 years ago
Find the 60th term of the arithmetic sequence <br> −29,−49,−69,...
Mariulka [41]

Answer:

  -1209

Step-by-step explanation:

Your sequence has first term a1 = -29 and common difference d = -20. Using these in the formula for the n-th term, we can find the 60 term.

  an = a1 +d(n -1)

  an = -29 -20(d -1)

  a60 = -29 -20(60 -1) = -1209

4 0
4 years ago
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