The half-life of cesium-137 is 30 years. Suppose we have a 150-mg sample. (a) Find the mass that remains after t years. y(t) = mg (b) How much of the sample remains after 60 years? (Round your answer to two decimal places.) mg (c) After how long will only 1 mg remain? (Round your answer to one decimal place.) t = yr

answer:

(-8,7)

explanation:

we know that  

f

(

−

3

)

=

7

therefore, if we wish to get the output as 7, in the function, we need to have our input to be -3.

looking at the function  

f

(

x

+

5

)

, what should the value of x be, such that the input in the function becomes 7?

we simply equate the terms,

x

+

5

=

−

3

x

=

−

8

thus, the point on the new function would be  

(

−

8

,

7

)

answer;

the correct answer

just use google you beautiful person.

have a nice day < 3

9

step-by-step explanation:

the answer is y = 11.54

hope this : )