(Need help ASAP) In a research experiment, the population of a colony of bacteria doubles every hour. The population, f(x), of the colony after x hours can be modeled by the function f(x)=25 ⋅ 2x. What values for the domain are reasonable in the given context? 1. all real numbers

2. all real numbers greater than 0

3. all real numbers greater than or equal to 0

4. all real numbers greater than or equal to 25

Step-by-step explanation:

The answer is 3

the correct answer is semicircle

step-by-step explanation:

the answer is semicircle because the shorter arc joining two points on the circumference of a circle is known as the minor arc, the larger arc is called the major arc, and a semicircle is a half circle, formed by cutting a whole circle along a diameter line.

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the image of (6, 9) under a dilation is (4, 6). the scale factor is