4 1/2 mph and I'm not sure about the other one sorry.
Answer:
Only external forces affect the motion of a system, according to Newton's first law. ... force applied to a car produces a much smaller acceleration than when ... Newton's second law states that a net force on an object is responsible for its ... A 1.0-kg mass thus has a weight of 9.8 N on Earth and only about 1.7 N on the Moon.
Step-by-step explanation:
Only external forces affect the motion of a system, according to Newton's first law. ... force applied to a car produces a much smaller acceleration than when ... Newton's second law states that a net force on an object is responsible for its ... A 1.0-kg mass thus has a weight of 9.8 N on Earth and only about 1.7 N on the Moon.
(
x
−
3
)
2
=
(
x
−
3
)
(
x
−
3
)
From here we can just FOIL; first, outer, inner, last. Multiply the first term in the first bracket (x), by the FIRST term in the second bracket (x), giving us
x
2
. Then, we multiply the outermost term on the left side by the OUTERmost on the right side, giving us
−
3
⋅
x
, equal to
−
3
x
. We then multiply the INNERmost terms together, which are again -3 and
x
, giving us
−
3
x
again. Finally we multiply the LAST term in the first bracket by the last term of the second, giving us
−
3
⋅
−
3
, or 9. Then, we simply write these out, in order:
x
2
−
3
x
−
3
x
+
9
Collect like terms:
x
2
−
6
x
+
9
And you're done!
Answer: 13
Step-by-step explanation:
8 + 4 + 1 = 13
Answer:
x^2+y^2=6^2
Step-by-step explanation:
The equation of a circle is (x-h)^2+(y-k)^2=r^2
where h is the x coordinate of the center, k is the y coordinate of the center, and r is the radius of the circle.
We can see the center is on 0,0, and the radius is 6, so our equation is
(x-0)^2+(y-0)^2=6^2
or
x^2+y^2=6^2