tan9°. tan27°. tan45°. tan72°. tan81°= 1​

could u plz solve it with clear process

Answers

Answer 1

Correct question:-

Prove that tan9.tan17.tan45.tan73.tan81=1

LHS

[tex]\\ \sf\longmapsto tan9.tan17.tan45.tan73.tan81[/tex]

[tex]\\ \sf\longmapsto tan9.tan81.tan17.tan73.tan45[/tex]

[tex]\\ \sf\longmapsto tan(90-81).tan81.tan(90-73).tan73.1[/tex]

[tex]\\ \sf\longmapsto cot81.tan81.cot73.tan73[/tex]

[tex]\\ \sf\longmapsto 1.1[/tex]

[tex]\\ \sf\longmapsto 1[/tex]


Related Questions

triangle ABC has vertices A(2,3), B(8,3), C(5,8). show that the triangle is isosceles​

Answers

The coordinates match up, as B has 3 and A also has the coordinate 3. This means they are in the line and are isosceles

HELP ME ASAP!!!!!!!!!!

Answers

Answer: x(2) -9

I’m pretty sure that it

Answer:

2x - 9

Step-by-step explanation:

let the number be x then multiplying by 2 is 2x , so

2x - 9 ← algebraic expression

$400 at 6.3% for 4 years. Find the simple interest

Answers

Answer:

the amount of interest is $100.80

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 6.3%/100 = 0.063 per year,

then, solving our equation

I = 400 × 0.063 × 4 = 100.8

I = $ 100.80

The simple interest accumulated

on a principal of $ 400.00

at a rate of 6.3% per year

for 4 years is $ 100.80.

BRAINLIEST PLEASE!

helppp
what is the slope?

Answers

Answer:

I don't see the image either-

Step-by-step explanation:

Upload this again please so we can answer this :')

2|x/2+3|=1, solve for x, there is two answers.

please help asap I will give brainiest

Answers

Answer: -5 and -7

Step-by-step explanation:

|[tex]\frac{x}{2}[/tex]+3| = [tex]\frac{1}{2}[/tex]

It has 2 cases

the first case ;

[tex]\frac{x}{2}[/tex] + 3 = [tex]\frac{1}{2}[/tex]

[tex]\frac{x}{2}[/tex] = [tex]\frac{-5}{2}[/tex]

x = -5

the second case;

[tex]\frac{x}{2}[/tex] + 3 = [tex]\frac{-1}{2}[/tex]

[tex]\frac{x}{2}[/tex] = [tex]\frac{-7}{2}[/tex]

x = -7

please give me a brainliest answer

can anyone plz tell me how to lucid dream tonight without an alarm im 13 and i never had one ill give brainliet

Answers

get a journal and pencil and when you go to sleep, don't put on any alarms. then write down in the morning what you dreamt about. every detail you can thing of. if you have the dream again, write down more details. this will help you begin to lucid dream.

What is the answer for x?

Answers

The value of x is 5 by using external angle

Answer:

Step-by-step explanation:

The triangle’s angles add up to 180 degrees

so 40 + (16x + 2) + ∠C = 180

The straight angle is 180°

so ∠C = 180 - (23x + 7)  

∠C = 180 - 23x -7

∠C = 173 - 23x

and then 40 + (16x + 2) +(173 - 23x) = 180

40 + 16x + 2 + 173 - 23x = 180

215 - 7x = 180

-7x = 180 - 215

-7x = -35

x = 5

please give me a brainliest answer

fill in the blank
( ___-2a)^2=9b^2-___+___

Answers

Answer:

(3b-2a)^2=9b^2-12ab+4a^2

Step-by-step explanation:

Using the formula (a-b)^2=a^2-2ab-b^2, you can plug in the values to get your answer. (Sorry I can't really explain more, it's just using the formula. Hope this helps)

alguien que me diga como se saca la X en ecuaciones cuadraticas porfaaaaaaaaa

Answers

Answer:

lol

Step-by-step explanation:

to get x in quadratic equations, factor it

What is the equation of the line that passes through the point (5, 4) and is perpendicular to the line whose equation is 2x + y = 3 in standard form?

Answers

So a line that is perpendicular is a line that intercepts other line at a 90 degree angle.

Slope of perpendicular lines is the opposite sign and the reciprocal of the other.

So if your slope was 2 the perpendicular line would have a slope of -1/2.

So the equation, 2x + y = 3

Can be rewritten as

y= -2x+3

Perpendicular slope: 1/2

Since it intercepts/ passes the coordinates (5,4) it means that those values are included in the function input x and output y.

y=mx+b

4=1/2(5)+b

Solve for b (y intercept)

4-2.5=b

1.5=b

So the equation of the perpendicular is

y=1/2x+3/2 or y=.5x+1.5

If the room is a 14 by 12' rectangle then the strip of wallpaper needs to be at least how long?

Answers

Answer:

52 ft.

Step-by-step explanation:

In this case, we need to calculate a perimeter, which is the sum of all sides of the rectangle.

So, rectangles has opposite sides equal, therefore, the perimeter should be:

; having L as the larger side.

Hence, the strip of wallpaper needs to be as least 52 ft.

nye nye nye nye nye nye nye ​

Answers

Answer:

what question is this lol

Step-by-step explanation:

yes loving it your amazing hope your doing well in school

Solve: (x - y)/(sqrt(x) + 1) = 2 + (sqrt(x) - 5)/3​

Answers

I think it might be:

Find the products in simplest form.
8 5
21 16
23. 15 =
RETRY

Answers

Answer:

part A

[tex] \frac{8}{21} . \: \frac{5}{16} \\ \\ \frac{5}{42} \\ \\ 0.119[/tex]

part B

[tex] \frac{12}{25} . \: \frac{15}{16} \\ \\ \frac{9}{20} \\ \\ 0.45[/tex]

Answer:

8/21 . 5/16 = 5/42

12/25 . 15/16 = 9/20

Step-by-step explanation:

16 = 2 x 8

8/21 . 5/16

= ( 8 x 5 ) / ( 21 x 16 )

= ( 8 x 5 ) / ( 21 x 2 x 8 )

= 5 / ( 21 x 2 )

= 5/42

12 = 3 x 4

15 = 3 x 5

25 = 5 x 5

16 = 4 x 4

12/25 . 15/16

= ( 3 x 4 ) / ( 5 x 5 ) . ( 3 x 5 ) / ( 4 x 4 )

= ( 3 x 4 x 3 x 5 ) / ( 5 x 5 x 4 x 4 )

= ( 3 x 3 ) / ( 5 x 4 )

= 9/20

14) Andre went hiking by his house, The first trail he hiked took him 4.5 miles away from his
house. The second trail he hiked took him 2.4 miles closer to his house. The third trail
took him 1.7 miles further away from his house. After Andre hiked the three trails, how
far from his house was he?

Answers

Answer : 3.8 miles
Step by step explanation :
The calculation is the following :
4.5 miles of the first hike minus 2.4 miles of the second hike
4.5 - 2.4 = 2.1
Then you have to add those 2.1 miles the 1.7 miles of the third and last hike
2.1 + 1.7 = 3.8 miles

Answer please I appreciate it foo:)

Answers

Answer:

Your answer is the second one.

Step-by-step explanation:

All of the x's and y's match up.

Hope this helps!

What is the student error in the multiplication below?

Answers

Answer:

below what

Step-by-step explanation:

I need some help with this thank you!

Answers

For part A, x equals 0.

Therefore (7²)⁰=7⁰=1

For part B, x could be any number because 0 multiplied by any number equals 0. eg. (7⁰)⁹=7⁰=1

Hope this helps!

Megan boarded a train at 10:23 and arrived at her destination
3 hours 5 minutes later. What time did she arrive at her.
destination

Answers

Answer:

She arrived at 1:28

Mia’s house has increased in value by $12000 in 15 months. Work out the rate of increase in the value of Mia’s house. Give your answer in dollars per month.Bạn đã gửi

Answers

Answer: 800 dollars per month

Step-by-step explanation:

12000 divided by 15 is 800

800 x 15 = 12000

Gold and silver are mixed in the ratio 7:4.if 36gm of silver is used.How many gold is used

Answers

Answer:

63gm

Step-by-step explanation:

7 gold : 4 silver

It gives you 36 silver.

to get from 4 silver to 36 silver you multiply by 9.

you multiply the gold by the same amount 9.

7*9= 63

you can see that for every 7 gold pieces there is 4 silver pieces. they keep piling up the pieces until there's 36 silver pieces. now they wanna know how much gold there is.

Find the measure of each numbered angle if m<1=72 and m<3=26.

<2=?

<4=?

Answers

Answer:

Step-by-step explanation:

<2=2*1

<4= 2*2

4(3 × 2) + (8 - 3)^2 - 6^2 + 3 × 9 - 2^3 + 1

Show your work

[Thank you]

Answers

Answer:

33

Step-by-step explanation:

if its in () its the 1th step and then the rest u can continue

+
In the figure below, if m<1 = (x + 16)° and m The < sign is angle

Answers

Answer:

Step-by-step explanation:

∠1 + ∠BFE = 180   {linear pair}

x + 16 + 3x + 20 = 180

x + 3x + 16 + 20 = 180   {Combine like terms}

4x + 36 = 180

Subtract 36 from both sides

4x = 180 - 36

4x = 144

Divide both sides by 4

x = 144/4

x = 36

I really need someone to help me out!

Answers

Answer:

y = 6x-13

Step-by-step explanation:

Given: y+1=6(x-2)

Distribute 6: y +1 = 6x -12

Isolate y: y = 6x -13 (subtracted 1 from both sides)

This is now in the form y = mx +b

Hope this helps!

y+1=6x+12
i hope this helped :)

May I please receive help?

Answers

Answer:

m‹F=25°

AB=12

Step-by-step explanation:

HOPE IT HELPS

Helpppp plsssssssdssssssssss

Answers

Answer:

y = x + 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 2, 1) and (x₂, y₂ ) = (- 1, 2) ← 2 points on the line

m = [tex]\frac{2-1}{-1-(-2)}[/tex] = [tex]\frac{1}{-1+2}[/tex] = [tex]\frac{1}{1}[/tex] = 1

The line crosses the y- axis at (0, 2 ) ⇒ c = 2

y = x + 2 ← equation of line

PLEASE HELP

what is the inverse of tge function

Answers

Answer:

its the lastone

Step-by-step explanation:

I need to fill out the GRAPH plss

Answers

Answer:

1 rabbit is 4 dollars

Step-by-step explanation:

for every rabbit you have, multiply it by 4 to find the number of dollars

I still need this question

Answers

Answer:

area is 52

Step-by-step explanation:

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