Answer:
3
Step-by-step explanation:
p(x)= 2x+3
p(0)=p(x=0)= 2*0 +3 =3
Answer:
x=10
Step-by-step explanation:
40= 3x+10 (it equals 40 because of vertical angles)
Answer:
6
Step-by-step explanation:
a=½bh
a=½(3)(4)
a=12(½)
a=6
Answer:
x²+y²=225
Step-by-step explanation:
when centered at the origin the equation of a circle is x²+y²=r²
we are given x and y so 9²+12²=r²
