in a right triangle, 0 is an acute angle and tan 0=8/5. What is the exact value of cos 0?

Answers

Answer 1

Answer:

[tex]\cos\theta=0.53[/tex]

Step-by-step explanation:

Given that,

[tex]\tan\theta=\dfrac{8}{5}[/tex]

We know that,

[tex]\tan\theta=\dfrac{P}{B}[/tex]

Where

P is perpendicular and B is base

Let H is hypotenuse of triangle. Using Pythagoras theorem,

[tex]H^2=P^2+B^2\\\\H=\sqrt{P^2+B^2} \\\\H=\sqrt{8^2+5^2} \\\\H=9.43[/tex]

We know that,

[tex]\cos\theta=\dfrac{B}{H}\\\\\cos\theta=\dfrac{5}{9.43}\\\\\cos\theta=0.53[/tex]

So, the value of [tex]\cos\theta[/tex] is equal to 0.53.


Related Questions

Find the measure of the indicated angle.

Answers

The answer for the angle trying to be found is 45 degrees
45 degree angle have a good day

Hi!! whats 3+3? :P .....

Answers

3 + 3 is 6 :))))

Have a great day!

Answer:

6

Step-by-step explanation:

Thank you for the points, have a wonderful day!

For you guys not for me- The orca weighs 4 tons. How many pounds is that

Answers

Answer:

8,000 pounds

Step-by-step explanation:

1 US ton = 2,000 pounds

[tex]\huge{\textbf{\textsf{{\color{navy}{An}}{\purple{sw}}{\pink{er}} {\color{pink}{:}}}}}[/tex]

8000 pounds.

1 ton is 2000 pounds

4 tons = 8000 pounds

Thanks Hope it helps.

what's the answer ?


[tex] \sqrt{245 + 44} [/tex]

Answers

[tex]\huge\mathfrak\pink{Answer...}[/tex]

+,- 17

[tex]\huge\mathfrak\purple{hope \: it \: helps..}[/tex]

1/3 (x -10) = -4

x = ?

Answers

Answer:

x = -2

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

Find the surface area of the composite figure

Answers

solution given:

For Cuboid

length[l]=11mm

breadth [b]=9mm

height[h]=6mm

For semi cylinder

height[H]=11mm

radius[r]=[tex] \frac{9}{2}=4.5mm[/tex]

Now

Totalsurface area=2(lb+bh+lh)+½(2πr(r+H))-l*b[/tex]

:2(11*9+9*6+11*6)+22/7*4.5(4.5+11)-11*9

:438+219.2-99

:558.2mm²

Here area of base is subtracted as it is not included.

Total surface area of composite figure is :558.2mm².

Answer:

[tex]\displaystyle SA_{Total} = \frac{279 \pi}{4} + 339 \ mm^2[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to Right

Algebra I

Factoring

Geometry

Shapes

Congruency

Congruent sides and lengths

Radius Formula: [tex]\displaystyle r = \frac{d}{2}[/tex]

d is diameter

Surface Area of a Rectangular Prism Formula: SA = 2(wl + hl + hw)

w is widthl is lengthh is height

Surface Area of a Cylinder Formula: SA = 2πrh + 2πr²

r is radiush is height

Step-by-step explanation:

Step 1: Define

Identify

[Rectangular Prism] w = 9 mm

[Rectangular Prism] l = 11 mm

[Rectangular Prism] h = 6 mm

[Cylinder] d = 9 mm

[Cylinder] h = 11 mm

Step 2: Derive

Modify Surface Area equations and combine

[Surface Area of a Cylinder Formula] Factor:                                                 [tex]\displaystyle SA = 2(\pi rh + \pi r^2)[/tex][Surface Area of a Cylinder Formula] Divide by 2 [Semi-Cylinder]:              [tex]\displaystyle SA = \pi rh + \pi r^2[/tex][Surface Area of a Semi-Cylinder] Substitute in r [Radius Formula]:             [tex]\displaystyle SA = \pi (\frac{d}{2})h + \pi (\frac{d}{2})^2[/tex][Surface Area of a Semi-Cylinder] Evaluate exponents:                                [tex]\displaystyle SA = \pi (\frac{d}{2})h + \pi (\frac{d^2}{4})[/tex][Surface Area of a Semi-Cylinder] Multiply:                                                    [tex]\displaystyle SA = \frac{\pi dh}{2} + \frac{\pi d^2}{4}[/tex][Surface Area of a Rectangular Prism] Remove top:                                      [tex]\displaystyle SA = 2(wh + lh) + lw[/tex]Combine Surface Area equations:                                                                  [tex]\displaystyle SA_{Total} = \frac{\pi dh}{2} + \frac{\pi d^2}{4} + 2(wh + lh) + lw[/tex]

Step 3: Find Surface Area

Substitute in variables [Combined Surface Area equation]:                         [tex]\displaystyle SA_{Total} = \frac{\pi (9 \ mm)(11 \ mm)}{2} + \frac{\pi (9 \ mm)^2}{4} + 2[(9 \ mm)(6 \ mm) + (11 \ mm)(6 \ mm)] + (11 \ mm)(9 \ mm)[/tex]Evaluate exponents:                                                                                         [tex]\displaystyle SA_{Total} = \frac{\pi (9 \ mm)(11 \ mm)}{2} + \frac{\pi (81 \ mm^2)}{4} + 2[(9 \ mm)(6 \ mm) + (11 \ mm)(6 \ mm)] + (11 \ mm)(9 \ mm)[/tex]Multiply:                                                                                                            [tex]\displaystyle SA_{Total} = \frac{99\pi \ mm^2}{2} + \frac{81\pi \ mm^2}{4} + 2[54 \ mm^2 + 66 \ mm^2] + 99 \ mm^2[/tex][Brackets] Add:                                                                                                 [tex]\displaystyle SA_{Total} = \frac{99\pi \ mm^2}{2} + \frac{81\pi \ mm^2}{4} + 2[120 \ mm^2] + 99 \ mm^2[/tex]Multiply:                                                                                                            [tex]\displaystyle SA_{Total} = \frac{99\pi \ mm^2}{2} + \frac{81\pi \ mm^2}{4} + 240 \ mm^2 + 99 \ mm^2[/tex]Add:                                                                                                                   [tex]\displaystyle SA_{Total} = \frac{279 \pi}{4} + 339 \ mm^2[/tex]

nine red balls and six blue balls are in a bag. if two were selected at random, determine the probability of selecting two red balls. set up the problem as if it would be solved but don't solve

Answers

Answer: (9/15)(8/14)=

Explanation: 9 out of the 15 total balls are blue and when you remove one blue ball, 8 out of fourteen balls are blue. These fractions are the chances of drawing each ball separately, so you multiply the chances together to get the chance of both happening.


[tex] x + 2y = 4[/tex]

Answers

xy=2 is the correct answer

what are the x- and y-intercepts for the graph of 4x-3y=-12?

Answers

x- intercept is (-3,0)
y-intercept is (0,4)

Mr porter had eight parties at her house last year the number of guest at each party is shown below 15,19,9,27,21,21,10,14

Answers

Answer:

17

Step-by-step explanation:

Complete question

Mr porter had eight parties at her house last year the number of guests at each party is shown below 15,19,9,27,21,21,10,14. What is the median numbers of those parties

The median value is the value at the middle after rearrangement

On rearranging in ascending order

9, 10, 14, (15, 19), 21, 21, 27

Since there are two values in the middle, we will take the average of the numbers

Median = 15+19/2

Median = 34/2

Median = 17

Hence the median value is 17

Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

Answers

Answer:

[tex]10\sqrt{2}[/tex]

Step-by-step explanation:

[tex]\sin 45^{\circ}=\frac{y}{10\sqrt{2}},\\y=10\sqrt{2}\sin45^{\circ}=10\sqrt{2}\cdot\frac{\sqrt{2}}{2}=\frac{10\cdot 2}{2}=\boxed{10}[/tex]

HELP
evaluate the function: f(x)=-x^2-x+3
f(-4)
show steps please

Answers

put -4 where the x is

so

-4^2-(-4)+3

16 + 4 + 3

23 is the answer

geocache box answers

Answers

Answer:

I don't know sorry I ain't smart

I don’t know bc you need to put more information ℹ️

A storm blew over a billboard 27 feet so that it is leaning against a pole 21 feet. How far from the base of the pole is the base of the billboard?

Answers

the base is 6ft of the billboard

What is the measure of angle B in degrees?
A) 30
B) 45
C) 60
D) 90

Answers

Answer:

its a 30 my friend and if its not a then choose b hope this helped

Step-by-step explanation:

Which fraction has a repeating decimal as its decimal expansion?

Answers

Answer:

3/11

Step-by-step explanation:

3 divided by 11 = 0.27272727272

Plz help with number 6 this is due today

Answers

y=5.3 I might be wrong but that’s what I got.
Nope you’re not wrong _ the solution have to be the highest

Find the measure of one of the interior angles of a
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A
1080°
B
157.5°
с
135°
D
202.5°
Help plss

Answers

It’s D. 202.5º, it makes more sense than the others I think I’m not sure I hope I’m right though

which is greater 30% or 0.4

Answers

I believe that 30% is greater than 0.4

Answer:

Well, 30% is equal to 0.3.

0.4 > 0.3

Step-by-step explanation:

Hope that this answers your question. If not please put any further questions below.

Have a great rest of your day/night!

Which two values are located at the same point on a number line? 1/2 and 2 , 2/2 2 , 2/1 2 , 2/1 and 1

Answers

Answer:  [tex]\frac{2}{2},1\ \text{and}\ \frac{2}{2},1[/tex]

Step-by-step explanation:

[tex]\Rightarrow \dfrac{2}{2}\ \text{is equivalent to 1}[/tex]

[tex]\text{So, }\ \dfrac{2}{2},2\ \text{is equivalent to 1,2}[/tex]

[tex]\text{Similarly, }\ \dfrac{2}{1},1\ \text{represents 2,1 or 1,2}[/tex]

[tex]\text{So,}\ \frac{2}{2},1\ \text{and}\ \frac{2}{2},1\ \text{are represents same on number line.}[/tex]

Round the number 178.572 to the ones place

Answers

Answer:

178.570

Step-by-step explanation:

Answer:

it stays the same so 178.572

Step-by-step explanation:

What is the slope of the line that passes through (2,3) and (2,11)

Answers

Answer:

the slope is unidentified

Step-by-step explanation:

x=2

there is no slope.

You can answer either question but just know you will get brainliest!

Answers

Answer:

1. x= -4

2. x= 7

Step-by-step explanation:

hope this helps :)

1. 10x +14 y+8 37 27 +3 4y-19 X+77.​

Answers

Answer:

Step-by-step explanation:

How do I solve questions like this?!

Answers

Answer: y>0=6 & y>4=6

Miguel walked Ask Your Teacher mile to the library and then Ask Your Teacher mile to the post office. How can he write Ask Your Teacher and Ask Your Teacher as a pair of fractions with a common denominator?

Answers

Answer:

[tex](\frac{5}{10},\frac{6}{10})[/tex]

Step-by-step explanation:

Given

[tex]Library \to \frac{1}{2}[/tex]

[tex]Post\ Office \to \frac{3}{5}[/tex]

See comment for complete question

Required

Write as a common denominator

Take the denominator of both fractions

[tex]2 \to[/tex]

[tex]5 \to[/tex]

Calculate the LCM

[tex]2 \to 1 * 2[/tex]

[tex]5 \to 1 * 5[/tex]

[tex]LCM = 1 * 2 * 5[/tex]

[tex]LCM = 10[/tex]

Multiply the numerator and the denominator of both fractions by 10

Simplify each to ensure a denominator of 10

[tex]\frac{1}{2} \to \frac{1}{2} * \frac{10}{10} \to \frac{1}{1} * \frac{5}{10} \to \frac{5}{10}[/tex]

[tex]\frac{3}{5} \to \frac{3}{5} * \frac{10}{10} \to \frac{3}{1} * \frac{2}{10} \to \frac{6}{10}[/tex]

Hence, the pair is:

[tex](\frac{5}{10},\frac{6}{10})[/tex]

someone please helppp

Answers

Answer:

D. 10cm

Step-by-step explanation:

Because 20-10=10

Pls mark brainliest

I would say ten cm but I’m not totally sure

Some remedies for gluten intolerance are to increase your intake of fruits and vegetables

A. True
B.False

Answers

I think that's false

Step-by-step explanation:

Hope this helps

Answer:

true

Step-by-step explanation:

gluten intolerance can stop you from absorbing really important nutrients, commonly found in fruits and veggies so increasing your intake can help you absorb the nutrients.

The area of a square garden is 64 m2. How long is each side of the
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Answers

Answer:

hope this will help you more...best of luck

URGENT!!! Solve the equation for the unknown

Answers

[tex] \huge\boxed{ \boxed{ \mathrm{Answer࿐}}}[/tex]

The value of x is 4

Solution in attachment :

_________________________

[tex]\mathrm{ ☠ \: TeeNForeveR \: ☠}[/tex]

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