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Svet_ta [14]
3 years ago
8

Perimeterpi = 22/ 7 any help? ​

Mathematics
2 answers:
netineya [11]3 years ago
8 0

Answer:

this is a required answer.

MrMuchimi3 years ago
6 0

Step-by-step explanation:

I) 9+9+9+9=36

Ii)radius is 4.5 L=2piR= 2pi(4.5)= 9pi

Iii) A=piR^2= pi(4.5)^2 = 20.5pi

IV) 9×9 =81

V) 81-20.5pi = 16.597

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Which expression is equivalent to ^
mash [69]

Answer:

Step-by-step explanation:

lets break down 120 to see what it is divisible by and see if any of those numbers are perfect squares.

120/2=60

120/3=40

120/4=30

we can stop there because 4 is a perfect square and 30 can not be reduced any further to produce a perfect square.

do not forget there is only one x so it must stay in side the  radical.

your answer is 2sqrt(30x)

5 0
3 years ago
If sin ∅ = a/b then prove that (sec ∅ + tan ∅) = √b+a/b-a​
nasty-shy [4]

Given that

Sin θ = a/b

LHS = Sec θ + Tan θ

⇛(1/Cos θ) + (Sin θ/ Cos θ)

⇛(1+Sin θ)/Cos θ

We know that

Sin² A + Cos² A = 1

⇛Cos² A = 1-Sin² A

⇛Cos A =√(1-Sin² A)

LHS = (1+Sin θ)/√(1- Sin² θ)

⇛ LHS = {1+(a/b)}/√{1-(a/b)²}

= {(b+a)/b}/√(1-(a²/b²))

= {(b+a)/b}/√{(b²-a²)/b²}

= {(b+a)/b}/√{(b²-a²)/b}

= (b+a)/√(b²-a²)

= √{(b+a)(b+a)/(b²-a²)}

⇛ LHS = √{(b+a)(b+a)/(b+a)(b-a)}

Now, (x+y)(x-y) = x²-y²

Where ,

  • x = b and
  • y = a

On cancelling (b+a) then

⇛LHS = √{(b+a)/(b-a)}

⇛RHS

⇛ LHS = RHS

Sec θ + Tan θ = √{(b+a)/(b-a)}

Hence, Proved.

<u>Answer</u><u>:</u> If Sinθ=a/b then Secθ+Tanθ=√{(b+a)/(b-a)}.

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brainly.com/question/12997785?referrer

Sec x -tan x sin x =1/secx Help me prove it..

brainly.com/question/20791199?referrer

7 0
3 years ago
What is the value of x that makes the statement true?<br><br> 12x + 16 = 50x - 3<br><br> x =
kvasek [131]

Answer:

  • x = 1/2

Step-by-step explanation:

Given

  • 12x + 16 = 50x - 3

Solving for x

  • 12x + 16 = 50x - 3
  • 50x - 12x = 16 + 3
  • 38x = 19
  • x = 19/38
  • x = 1/2
6 0
3 years ago
Someone knows how to do this?
devlian [24]

Answer:

w = 9

Step-by-step explanation:

All angles are multiplied by 3 from the smaller one

6 0
3 years ago
Read 2 more answers
My work is already late because I was suppose to turn it in at 9:30 PM sooo like help?
CaHeK987 [17]
The answer is 500.902 hope you get it right
5 0
3 years ago
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