
Dabriel M.
asked 05/20/21I need help with these questions
For the three-part question that follows, provide your answer to each part in the given workspace. Identify each part with a coordinating response. Be sure to clearly label each part of your response as Part A, Part B, and Part C.
Part A: What keystrokes are used on a graphing calculator to approximate x=log250/9log4?
Part B: The exact solution to the equation 4^9x = 250 is x=log250/9log4. Approximate the solution, rounding to the nearest hundredth if necessary.
Part C: What is the value obtained when the answer from Part B is verified in the equation? Determine whether the approximate value of x from Part B is a reasonable approximation for the solution to the equation 4^9x = 250 .
1 Expert Answer
Raymond B. answered 05/27/21
Math, microeconomics or criminal justice
9x = 3.98289
x =3.98289/9= 0.4437
x=0.44 rounded to nearest hundredth
lpg250/9log4 = 2,4/5.4 = 0.44
4 to what power is 250? 4^4 = 16^2 = 256, so 9x is slightly less than 4, or 3.98289
x =(1/9) of 3.98289. 4/9 = 0.44
4^9(.44) = 4^3.96 is slightly smaller than 250
or ln250/9ln4 = 5.5/12.5 = 0.44
You can us any base log, natural, common, base e, base 10 or any base
4^9(.44) = 4^3.96 =about 242 = slightly smaller than 250, but it's a close approximation
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John M.
Part A: If you don't know this then get out calculator manual and figure it out. It's really easy, or go online, I'm sure there are videos.05/25/21