Range of f(x) = 7 + 4x is all positive real numbers.
This problem should have been posted with a diagram, because some of the points (D,F) are undefined. Assumptions have therefore been made to make it a sensible question. So please VERIFY diagram with your given diagram to confirm the question BEFORE reading further.
We are given EA and EC are common tangents to circles G & B.
(assumed mEG < mEB, and A, C are tangent points of B, D & F are tangent points on G, see diagram).
GF=7=radius of G.
EG=25=distance of E to centre of circle G.
EF
=sqrt(25^2-7^2) (pythagoras)
=sqrt(576)
=24
EA=EC (external tangents from same point E to circle B)
=EF+FA
=24+44
=68
360° (a circle) = 2pi radians, so 720×2pi/360
= 2×2pi = 4pi
4pi = a*pi
a = 4
Answer:
D. 2.75P
Step-by-step explanation:
275%=275/100=2.75
when we are finding the percentage of something, we multiply its decimal form by P (or whatever number you are trying to find the percentage of for example .8 time 100= 80)
275% of P= 2.75P
Answer:
x=1
Step-by-step explanation:
The radius of a circle is half of the diameter.
Because we know this, we can multiply the radius by 2 to equal the diameter:
4*2=3x+5
Then we solve for x:
8=3x+5
3=3x
x=1