Spaceship 1 and spaceship 2 have equal masses of 200 kg. spaceship 1 has
a speed of 0 m/s, and spaceship 2 has a speed of 10 m/s. what is the
magnitude of their combined momentum?
o
a. 1,000 kg-m/s
o
b. 0 kg-m/s
o
c. 200 kg-m/s
o
d. 2,000 kg-m/s

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?