Suppose 128 oz of radioactive substance decays to 28 oz in 6 hours, what is the half-life of the substance?

Suppose 128 oz of radioactive substance decays to 28 oz in 6 hours, what is the half-life of the substance?

Determine an exponential function in the form y=Cbx given two points (0,-2) and (1,-6) the answer is y= -2(3x) but I do not know how that was reached thank you in ad...

The 2-X is in the exponent

mabel has 8000 in a bank which is below her required remaining balance. As penalty, her money decreases at the rate of 10% every month. How much money will she have after one year?

solve the exponential equation 10-x = 56x

ex+e-x=6

Exact Answer Approximate Answer show work

I was teaching a class and came across a question related to quadratic equations. Question was about reducing given exponential equation to quadratic form and solve by factorization later. I would...

A savings account earns 2% annual interest, compounded annually. The variable y gives the amount of money in the account after x years. Find the base, b, for the exponential equation of the form...

The population of a town decreased by 2.5% each year. The variable y gives the population after x years. Find the base, b, for the exponential equation of the form y=a x b^x that describes the...

Slove the exponential equation equation.Check for extraneous solutions. Round the result to three decimal places if necessary. 1.) 92x=3^2x+4 10.) 3ex =2 19.)92x=32x+4

8^x=4 and 9^-2x= (27) ^x-1

A) There is am estimated 2000 deer currently in China. The population is estimated to decrease by 8% every year due to the construction of homes in the area. At this rate how many deer will there...

Both need to be rounded to the nearest ten thousandths. 1. 4x=243 2. 14^x+1=36?I have do this problem too many times but only answers I have gotten is 1.347 or 0.358

help me

(1/4)-2x=64

Basically, I have this equation... 60 = 400(0.85)x ...And I need to solve for 'x'. So far, what I'm thinking is that I need to divide both sides by 400, but I haven't...

8^3x^+5 = (1/4)^x^-2 (e^x)^2 = e^4x e^6

Solve Equations Without Using A Calculator And Show Work 1) ln(x-1) - ln(x-3) = 1 2) 3^x(5^(x-2)) = 3^(4x) I need to turn it in by tomorrow...

1252x * 25x2-3 = ( √5)x *The exponent of 25 is x squared btw.

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