Work out the AREA OF A REGULAR DECAGON which is inscribed in a circle that has radius of xcm. Give your ans in terms of x

Answer:

= sin x

1

−

cos

x

(

1

+

cos

x

1

+

cos

x

)

-multiply by the conjugate

=

sin

x

+

sin

x

cos

x

1

−

cos

2

x

-distribute

=

sin

x

sin

2

x

+

sin

x

cos

x

sin

2

x

-use property  

sin

2

x

+

cos

2

x

=

1

=

1

sin

x

+

cos

x

sin

x

-simply

=

csc

x

+

cot

x

=

Right Hand Side

Step-by-step explanation:

Answer:

Kelly makes about $19.87 per hour for the day.

Step-by-step explanation:

Solve for retail store:

15.23 × 8

121.84

Solve for restaurant:

24.50 × 8

196

Add both of her paychecks:

121.84 + 196

317.84

Divide the total by the total number of hours to find the average per hour:

317.84 ÷ 16

19.865

Round to nearest cent:

19.865 is about 19.87

Answer:

B (2,4,6,8,10) is the answer

B=(X:X is the first five multipel of 2)

this is a correct answer

Answer:

Question is incomplete

Step-by-step explanation:

So can't understand try adding again

Answer:  x=85 and the equation is at the step by step

Step-by-step explanation:

150 + 77 + 48 = 275

360 - 275 = 85 = x

Answer:

√-7

Step-by-step explanation:

√(3² - 4²)

=> √(9 - 16)

=> √-7

Step-by-step explanation:

(2x-1)(3x+2) = 0

6x + 4x - 3x - 2 = 0

7x - 2 = 0

7x = 2

X = 2/7

Fill in this X for the 2 formulas, I'll do the first one:

2 * 2/7 - 1 =.....

Then take the 2 answers you get and multiply them with each other so you get the surface size (length * width)

Answer:

-4

Step-by-step explanation:

If you just have -y as the expression, and the problem tells you that y = 4, then you are going to plug 4 in place of y. - (4).

[tex]\\ \sf\longmapsto \dfrac{2}{4}[/tex]

[tex]\\ \sf\longmapsto \dfrac{1}{2}[/tex]

[tex]\\ \sf\longmapsto \dfrac{1(5)}{2(5)}[/tex]

[tex]\\ \sf\longmapsto \dfrac{5}{10}[/tex]

[tex]\\ \sf\longmapsto 0.5[/tex]

#2

[tex]\\ \sf\longmapsto \dfrac{3}{4}[/tex]

[tex]\\ \sf\longmapsto \dfrac{3(25)}{4(25)}[/tex]

[tex]\\ \sf\longmapsto \dfrac{75}{100}[/tex]

[tex]\\ \sf\longmapsto 0.75[/tex]

#3

[tex]\\ \sf\longmapsto \dfrac{7}{8}[/tex]

[tex]\\ \sf\longmapsto \dfrac{7(125)}{8(125)}[/tex]

[tex]\\ \sf\longmapsto \dfrac{875}{1000}[/tex]

[tex]\\ \sf\longmapsto 0.875[/tex]

#3

[tex]\\ \sf\longmapsto \dfrac{3}{8}[/tex]

[tex]\\ \sf\longmapsto \dfrac{3(125)}{8(125)}[/tex]

[tex]\\ \sf\longmapsto \dfrac{375}{1000}[/tex]

[tex]\\ \sf\longmapsto 0.375[/tex]

Answer:

X=7

Step-by-step explanation:

refer to picture for explnation

100-10=90%=SP

[tex]\\ \sf\longmapsto 90\%\times x=450[/tex]

[tex]\\ \sf\longmapsto \dfrac{90}{100}x=450[/tex]

[tex]\\ \sf\longmapsto x=450\times \dfrac{100}{90}[/tex]

[tex]\\ \sf\longmapsto x=5(100)[/tex]

[tex]\\ \sf\longmapsto CP=500[/tex]

Answer:

It is assumed the question is asking to simplify or factorize:

This is simplified expression.

Factorizing as follows:

Step-by-step explanation:

[tex](a + b) {}^{2} - {a}^{2} + b {}^{2} [/tex]

a² + 2ab + b² - a² + b²

Cancelling a²

2ab + b² + b²

2ab + 2b²

Taking 2 and b as common

2b(a + b)

Answer:

1.8 cm to the nearest tenth.

Step-by-step explanation:

The angle opposite side a = 180 - 105 - 15 = 60 degrees.

By the Sine Rule:

a / sin 60 = 2 / sin 105

a = 2 * sin60/ sin 105

= 1.79315

Answer:

Step-by-step explanation:

1. 15

2. 40

Answer:

2x² + 5x

Step-by-step explanation:

Given

3x² + 4x - x² + x ← collect like terms

= (3 - 1)x² + (4 + 1)x

= 2x² + 5x

Answer:

Hi there!

We've given with the base area and height. We know the formula for base area

Base area = πr²

154 = 22/7 × r²

154 × 7/22 = r²

49 = r²

√49 = r

7 = r

Now

TSA = 2πr(h + r)

TSA = 2 × 22/7 × 7(7 + 20)

TSA = 44(27)

TSA = 1188 cm²

Answer:

please give me brillriant answer

Recall that in Linear Functions, we wrote the equation for a linear function from a graph. Now we can extend what we know about graphing linear functions to analyze graphs a little more closely. Begin by taking a look at Figure 8. We can see right away that the graph crosses the y-axis at the point (0, 4) so this is the y-intercept.

Answer:

Step-by-step explanation:

[tex] \frac{ - 216}{144} \\ \\ = \frac{ - 3}{2} [/tex]

Answer:

300 in^2

Step-by-step explanation:

6^2 π = 36π

36π * 2 = 72π

12π * 2 = 24π

72π + 24π = 96π

96π = 301.5928947.... ≈ 300 in^2

Answer:

153*10^3

Step-by-step explanation:

I assumed the first exponential number as 1

[tex]\huge\text{Hey there!}[/tex]

[tex]\huge\boxed{\mathsf{(3.4 \times 10^4)(4.5 \times 10^3)}}\\\huge\boxed{\mathsf{\rightarrow 3.4\times10^4 \times 4.5 \times 10^3}}[/tex]

[tex]\huge\boxed{\mathsf{10^4}}\\\huge\boxed{= 10\times10\times10\times10}\\\huge\boxed{= 100\times100}\\\huge\boxed{= 10,000}\\\\\\\huge\boxed{\mathsf{10^3}}\\\huge\boxed{=10\times10\times10}\\\huge\boxed{= 100\times10}\\\huge\boxed{= 1,000}[/tex]

[tex]\huge\boxed{\rightarrow\mathsf{3.4\times \bold{10,000} \times 4.5 \times \bold{1,000}}}}[/tex]

[tex]\huge\boxed{\mathsf{3.4\times10,000}}\\\huge\boxed{= 34,000}\\\\\\\huge\boxed{\mathsf{4.5\times1,000}}\\\huge\boxed{{= 4,500}}}[/tex]

[tex]\huge\boxed{\mathsf{\rightarrow\bf 34,000\times4,500}}\\\huge\boxed{\rightarrow\mathsf{ORIGINAL \ ANSWER: \frak {153,000,000}}}}[/tex]

[tex]\huge\boxed{\textsf{Your answer: }\mathsf{153\times10^6}}\huge\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

~[tex]\huge\boxed{\frak{Amphitrite1040:)}}[/tex]

Answer:

[tex]\frac{14}{19}[/tex]

First:

Convert any mixed numbers to fractions.

Then your initial equation becomes:

[tex]\frac{7}{4} \div \frac{19}{8}[/tex]

Applying the fractions formula for division:

[tex]= \frac{7 \times 8}{4 \times 19}[/tex]

[tex]= \frac{56}{76}[/tex]

Simplifying 56/76, the answer is:

[tex]\frac{14}{19}[/tex]

I hope this helps! :)

Answer:

the answer is 14/19

change the mixed numbers to improper fractions then that becomes 7/4 and 19/8 then multiply across 7x8=56 and 19x4=76 that gives you 56/76

Simplifying 56/76,=  14/19  

[tex]\\ \sf\longmapsto 2-x\gt x-2[/tex]

[tex]\\ \sf\longmapsto 2+2\gt x+x[/tex]

[tex]\\ \sf\longmapsto 4\gt 2x[/tex]

[tex]\\ \sf\longmapsto x\lt \dfrac{4}{2}[/tex]

[tex]\\ \sf\longmapsto x\lt 2[/tex]

Answer:

Rational number . . . . . .

Answer:

Step-by-step explanation:

[tex]U=\{1,2,3,4,5,6,7,8,9,10\}\\\\P=\{2,4,6,8,10\}\\\overline{P}=\{1,3,5,7,9\}\\\\Q=\{2,3,5,7\}\\\overline{Q}=\{1,4,6,8,9,10\}\\\\P\ \cap\ Q=\{2\}\\P\ \cup\ Q=\{2,3,4,5,6,7,8,10\}\\\\\overline{P\ \cup\ Q}=\{1,9\}\\\\\overline{P}\ \cap\ \overline{Q}=\{1,3,5,7,9\}\ \cap\ \{1,4,6,8,9,10\}=\{1,9\}[/tex]

Answer: Slope = 2/5

Concept:

Here, we need to know how to find the slope.

Slope = (y₂ - y₁) / (x₂ - x₁)

If you are still confused, please refer to the attachment below for a clearer version of the formula

Solve:

Given information

(x₁, y₁) = (-6, 2)

(x₂, y₂) = (4, 6)

Given formula

Slope = (y₂ - y₁) / (x₂ - x₁)

Substitute values into the formula

Slope = (6 - 2) / (4 - (-6))

Simplify values in the parentheses

REMEMBER to change [+, -] signs when there is a [-] sign in front

Slope = 4 / (4 + 6)

Slope = 4 / 10

Divide both numerator and denominator by 2 to get the simplest form

Slope = (4 ÷ 2) / (10 ÷ 2)

Slope = 2/5

Hope this helps!! :)

Please let me know if you have any questions

Answer:

your answer is -5-4-3-2-11

Step-by-step explanation:

this is because -5-4-3-2-11=-26, and that is the lowest term there

Answer:

Here,

A=-7

B=12

Length of AB=?

Now, We know that,

Length of AB=-7-12

=-19

Thus, the length of AB is -19