Answer:
6y^2-7y-3
Step-by-step explanation:
<u>(-7-10y+6y^2)+(4+3y)</u>
<u>-7-10y+6y^2+4+3y </u><u><em>(Plus before brackets means the numbers stays the same)</em></u>
<u>6y^2+3y-10y+4-7</u><u><em> (Arrange them)</em></u>
<u>6y^2-7y-3 </u><u>(Do the maths)</u>
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Find g(4) first.
g(4)=(4)^2=16
f(g(4))=f(16)=16-3=13
Answer:
9π or 28.27 cm
Step-by-step explanation:
The circumference formula is 2πr or dπ. The diameter is 9 cm so we multiply 9 with pi to get the answer.