Answer:
13
Step-by-step explanation:
its 13 calculator
Parking lot A equation- $3.00 + $9.00x
Parking lot B equation- $10.00 + $6.00x
Part A- For 3 days parking lot B would be the better option- $28
Part B- For 8 days parking lot B would also be the better option- $58
Answer:
-4x^2+5x-28
Step-by-step explanation:
3x^2 +5x - 7(x^2 +4)
Distribute the -7
3x^2+5x-7x^2-28
Combine like terms
-4x^2+5x-28
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