Knowing that your area is:
you can find the radius as:
;
With this you can evaluate the circumference as:
1500 is minus 1/10 after it is at 1700 thousad
Direct variation has the form y=kx. Given a point we can solve for the constant k.
y=kx, when y=9 and x=-3 becomes:
9=-3k
k=-3 so the constant of variation is negative 3
Answer:
perimeter: 8a³b+4ab
area: 4a²b²
Step-by-step explanation:
2a³b + 6a³b+4ab=
8a³b+4ab
1/2×4ab×2a³b=
4aa³bb
4a⁴b²
btw love ur pfp
Answer: 2(4 + x)
Step-by-step explanation:
i just multiplied across the parentheses. we can rule out the first option, because it would multiply out to be 8 + 4x.
the second option is the one that i calculated second, so i knew that i could rule out the last one my default.
just for kicks, if we multiplied the third option, it would come out to 8 + 4x.
