In a school of 2400 students, the ratio of teachers to students is 1:12. Some teachers join the school and the ratio changes to
1 answer:
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If you notice, the container is really just two circles, with a diameter of 4 each, and a square with sides of 10.5.
now, if we just get the area of each circle, keeping in mind their radius is half of the diameter, namely r = 2, and get the area of the 10.5x10.5 square, sum them up, that'd be the surface area of the container.
now, if we just get the area of each circle, keeping in mind their radius is half of the diameter, namely r = 2, and get the area of the 10.5x10.5 square, sum them up, that'd be the surface area of the container.
Answer:
r = -
Step-by-step explanation:
The n th term of a GP is
= a₁
where a₁ is the first term and r the common ratio
Here a₁ = 18 and a₆ = - , then
18 = -
( divide both sides by 18 )
= -
( take the fifth root of both sides )
r = = -