Answer:
Step-by-step explanation:
4 boys and 5 girls ratio (4:5)
Answer:
Its 96 bro :) 96 students
Step-by-step explanation:
Basically yeah, 800 is 100% of the population yeah. So just multiply 800 times 12%. 800 x 12% is 96.
96 = 12% of 800, I hope this helps!
Answer: no. it doesn’t match for the first one but it does for the second.
Step-by-step explanation:
The formula to finding a discriminant would be b^2-4ac, the b value of this trinomial being -5, the a value being 2, the c value being 3. Then, you plug the values in the equation and solve: (-5)^2-4(2)(3)
This would simplify to 1, meaning there are two solutions since the discriminant value is positive. If it is 0, there is one solution, if it is negative, then there are no real solutions.
Surface area = volume
2πr(h + r) = πr^2h
2h + 2r = rh
rh - 2h = 2r
h(r - 2) = 2r
h = 2r/(r - 2) = 7.2/(3.6 - 2) = 7.2/1.6 = 4.5
surface area = 2πr(h + r) = 7.2(4.5 + 3.6)π = 7.2(8.1)π = 58.32πcm^2
Volume = πr^2h = (3.6)^2 x 4.5π cm^3 = 12.96 x 4.5π cm^3 = 58.32π cm^3