An object is launched from a platform. Its height in meters, x seconds after the launch, is modeled by −3(x+4)2+108. After how many seconds does the object reach the max. height? What is the max. height?

-9

step-by-step explanation:

152 thatbk ypi vjsl b abjb uoabr

the exponential expression to find the value of the cd, in dollars, after t years will be:  

step-by-step explanation:

formula of compound interest:   , where final value after years,   initial value, rate of interest in decimal and number of compounding in a year.

oliver plans to purchase a $1,500 certificate of deposit (cd) at his bank. that means,  

the cd will earn 2.3% interest, compounded semi-annually.

so,   and  

now, plugging these values into the above formula, we will

(rounded to the nearest ten-thousandth)

so, the exponential expression to find the value of the cd, in dollars, after t years will be: