Which equation shows the quadratic formula used correctly to solve 7x^2=9+x for x?
2 answers:
You might be interested in
Answer:
Step-by-step explanation:
the shape is made up of 2 circles and one box add the 3 areas up
circle area =
3.14* = 50.24
50.24*2 =100.48
box, box, pit now :P ooh I was thinking formula one racing, ( i've been watching that lately) anyway
box = 8*8 = 64
total = 164.48 is that an option? hmm, yes the bottom two choices.. now the perimeter . the perimeter is made up of the 2 circles
the circumference of a circle is 2r
2**r
2**4 =25.1327 that's one whole circle , multiplied by 2 , I can see , by math in my head that's about 50.26
sooo
the 3rd choice looks good :)