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o-na [289]
3 years ago
15

Angle relationships definitions please help​

Mathematics
1 answer:
alekssr [168]3 years ago
5 0

Answer:

Vertical

Step-by-step explanation:

<2 and <4 are vertical angles they are the angles opposite each other when two lines cross.

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Need answers ASAP
timofeeve [1]
Only figure C is a regular polygon since it has all sides congruent and all angles congruent. 
4 0
3 years ago
How do you find the arctan 4/3 ? (Without a calculator)
Soloha48 [4]
If arctan 4/3 = the tangent of that angle will be 4/3 , opposite 4 over adjacent 3

Now, you only have to take the sin of that angle it's opposite 4 over hypotenuse 5. 

You will get that the answer is 4/5

hope this helps



7 0
3 years ago
Given that f(x) = x + 3<br> a) Find f(2)
Nataly_w [17]

{ \qquad\qquad\huge\underline{{\sf Answer}}}

Here we go ~

In the above question, it is given that :

\qquad \sf  \boxed{ \sf f(x) =  \frac{x + 3}{2} }

A.) Find f(2) :

\qquad \sf  \dashrightarrow \: f(2) =  \dfrac{2 + 3}{2}

\qquad \sf  \dashrightarrow \: f(2) =  \dfrac{5}{2}

or

\qquad \sf  \dashrightarrow \: f(2) = 0.5

B.) Find { \sf {f}^{-1}(x) } :

\qquad \sf  \dashrightarrow \: let \: y = f (x)

so, we can write it as :

\qquad \sf  \dashrightarrow \: y =  \dfrac{x + 3}{2}

\qquad \sf  \dashrightarrow \: 2y = x + 3

\qquad \sf  \dashrightarrow \: x = 2y - 3

Now, put x = { \sf {f}^{-1}(x) }, and y = x and we will get our required inverse function ~

\qquad \sf  \dashrightarrow \: f {}^{ - 1}(x) = 2x- 3

C.) Find { \sf {f}^{-1}(12) } :

\qquad \sf  \dashrightarrow \: f {}^{ - 1}(12) = 2(12)- 3

\qquad \sf  \dashrightarrow \: f {}^{ - 1}(12) = 36- 3

\qquad \sf  \dashrightarrow \: f {}^{ - 1}(12) = 33

7 0
10 months ago
The prime number which is also even is<br> a) 0<br> b) -2<br> c) 2<br> d) 6
Archy [21]

Answer:

c) 2

Step-by-step explanation:

a prime number is a number which is only completely divisible by 1 and itself

7 0
2 years ago
Read 2 more answers
What is -4 divided by 2/5
scoundrel [369]
The answer is -10

Step by step:
-4 / 2/5
-4/1 x 5/2
-20/2 simplifies to -10
3 0
3 years ago
Read 2 more answers
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