SOLUTION: Solve each equation for x.
(a) 30 = 80(1 − e^−2x)
(b) 5 × 2^x = 3^ (x−1)
(c) log2(log3 x) = 5
(d) e^{− 1/2 log(x^2−1) }=1/sqrt 3
Algebra.Com
Question 1032137: Solve each equation for x.
(a) 30 = 80(1 − e^−2x)
(b) 5 × 2^x = 3^ (x−1)
(c) log2(log3 x) = 5
(d) e^{− 1/2 log(x^2−1) }=1/sqrt 3
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
(a) 30 = 80(1 - e^-2x)
1 - e^-2x = 0.375
e^-2x = 0.625
-2x = ln(0.625)
x = -ln(0.625)/2
x =~ 0.2350018
======================
(b) 5 × 2^x = 3^ (x−1)
Not clear. Use * (Shift 8) for multiply, not x.
================
(c) log2(log3 x) = 5
Ambiguous. Add parentheses.
===================
(d) e^{-1/2 log(x^2 - 1) }=1/sqrt 3
Is it log base 10? or ln ?
RELATED QUESTIONS
Solve each equation for x.
(a) 30 = 80(1 − e^−2x)
(b) 5 X 2^x = 3^... (answered by stanbon)
solve each equation for x.
a) 30= 80(1-e ^[-2x])
b) 5*2^x = 3^[x-1]
c) log2(log3... (answered by Alan3354)
Express the following as the logarithm of a single quantity.
a)log (x + 3) − 2... (answered by Gogonati)
1.Solve
x^2+3x−4/2x^2+−3≤ 0, indicating your answer by interval... (answered by solver91311)
Given the parent functions f(x) = log3 (5x − 5) and g(x) = log3 (x − 1), what (answered by ewatrrr)
Solve the logarithmic or exponential equation.
1.(525)/(1+e^-x)=275
2.ln(x +1) − (answered by solver91311)
Given x > 1, solve for x
(log x^7)(log x) − log x^2 − 5 = 0
(answered by swincher4391)
x 0 1 2 3
f(x) 1 2 5 10
The table above... (answered by ewatrrr)
The ordered pair
(
x
,
y
)
=
(
2
,
−
3
)
(x,y)=(2,−3) is a... (answered by ikleyn)