Answer:
i wanna say 15 maybe, but it might be wrong. I havent done these type of problems in awhile.
It should be 0.88 or 0.84
Answer:
.018 Kg/cm^3
Step-by-step explanation:

Density (P) is equal to the mass (9.9g) divided by volume (.55cm^3)

= 18g/cm^3
=.018kg/cm^3
Well a right triangle is made up of a 180 degree angle and take away 90 degrees because the right angle is already there so the answer is that PQR is a right triangle since the other two angles = 90 when added hope this helps i did alot of research:)
Answer:
w = 36
Step-by-step explanation:
You can make a ratio 98 : 84 = 42 : w

49w = 1764
w = 36