Step-by-step explanation:
a x^2/4
b -x^2/4+3
c 4x^2
d -x^2
I think its 44 too,but what do i know
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I mean at least 45 min to finish it
Answer:
its 34
Step-by-step explanation:
Triangles RDO and RHC are similar, so you have
.. RO:RC = RD:RH
.. RO:(RD +CD) = RD:(RO +OH)
.. 6:(4 +CD) = 4:(6 +4) . . . . . . . fill in numbers
.. 6*10 = 4(4 +CD) . . . . . . . . . . product of means = product of extremes
.. 15 = 4 +CD
.. CD = 11
