4 Which statement about a sphere is true?O The length of the diameter of a sphere is two times the length of the radius of the s
phere.o The great circle of a sphere is a three-dimensional circle.o The great circle of a sphere is not the same shape as the base of a coneo The center of a sphere is created from a plane that passes through the sphere.
2 answers:
Answer:
(A) The length of the diameter of a sphere is two times the length of the radius of the sphere
Step-by-step explanation:
Sphere: A round solid figure, or its surface, with every point on its surface equidistant from its center.
Also, The length of the diameter of a sphere is two times the length of the radius of the sphere that is where D is the diameter and r is the radius of the sphere.
Therefore, out of all the options given, only Option (A) is the correct option because it properly describes the statement about sphere.
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Answer:
The initial population was 2810
The bacterial population after 5 hours will be 92335548
Step-by-step explanation:
The bacterial population growth formula is:
where P is the population after time t, is the starting population, i.e. when t = 0, r is the rate of growth in % and t is time in hours
Data: The doubling period of a bacterial population is 20 minutes (1/3 hour). Replacing this information in the formula we get:
Data: At time t = 100 minutes (5/3 hours), the bacterial population was 90000. Replacing this information in the formula we get:
Data: the initial population got above and t = 5 hours. Replacing this information in the formula we get: