Answer:
A, C
Step-by-step explanation:
Use SOH CAH TOA to recall how the trig functions fit on a triangle
SOH: Sin(Ф)= Opp / Hyp
CAH: Cos(Ф)= Adj / Hyp
TOA: Tan(Ф) = Opp / Adj
the ∠A is adjacent (adj) to AB and opposite (Opp) of BC and AB is the hypotenuse (Hyp) of the triangle
which one of the above trig functions fits that?
sin(Ф) = BC / AC is sin(Ф)= Opp / Hyp , so choice A) works
cos(Ф) = BC / AC is not cos(Ф) = Opp / Hyp so choice B) does not work
cos(Ф) = BA / AC is cos(Ф) = Adj / Hyp so choice C) works
AC / BC is just a ratio it's not the angle , so D) doesn't work
Answer: it's around 40
Step-by-step explanation:
The required algebraic expression will be "
". A complete solution is provided below.
According to the given question,
- Let the number be "x".
- Five less than this number will be "x-5"
Now,
The product of the lesser number with 7 will be:
= ...(Algebraic expression)
By solving this, we get
= 
Thus the above answer is appropriate.
Learn more about algebraic expression:
brainly.com/question/24021199
Let's say the original radius was "r", so the circumference is 2πr and the area is πr².
Now when you double the radius, the you get a new circle with radius 2r, circumference 2π(2r) = 4πr, and area π(2r)² = 4πr².
Answer:
c
Step-by-step explanation:
i am to lazy to explain so sry
