Logarithm + exponential function - practice problems
Number of problems found: 36
- Logarithm
Determine the number whose decimal logarithm is -3.8. - Log
If log4 x+ log8 x = log_b x, what is b? - Coordinate
Determine the missing coordinate of the point M [x, 11] of the graph of the function f by rule: y = 3x - Exponential equation
In the set R, solve the equation: 7 -5 +19x=4 3 -20x - Expression 3801
What is the value of x in the expression 8^x = 1/64 - Sequence
Calculate what member of the sequence specified by (5n-2+15) has value 20. - Expression: 4085
Determine the value of x and y in the expression: x! · 10^y = 0.0504. - Simplify logarithm expr
Given that logxU + logxV =p and logxU - logxV =q Prove that U=x^½(p+q) - Equation: 4386
Solve the power equation: 2.1463 = 0.4179x0.419 - Double of principal
How long will it take for the principal to double at 12.25% annual interest? - Exponential equation
Find x, if 625^x = 5 The equation is exponential because the unknown is in the exponential power of 625 - Determine 4104
Determine the value of x in this equation: (0.125^x) · 104 = 5000 - Car value
The car loses value by 15% every year. Determine a time (in years) when its price will halve. - Half life
Determine the half-life of bismuth, when bismuth weight from the original weight of 32 g was only 2 grams in 242 minutes. - Geometric progression
In geometric progression, a1 = 7, q = 5. Find the condition for n to sum first n members is sn≤217. - Demographics
The population grew in the city in 10 years from 30000 to 34000. What is the average annual percentage increase in population? - The city 3
The city has 22,000 residents. How long is it expected to have 25,000 residents if the average annual population growth is 1.4%? - Decibel
What percentage of sound intensity increases if the sound intensity level increases by 1 dB? - Finite geometric sequence
Find the remaining unknown characteristics in the finite geometric sequence, if given: a1 = 18, an = 13122, sn = 19674, n =? q =? - If you 4
If you deposit $2500 in an account paying 11% annual interest compounded quarterly, how long until there is the $4500 in the account?
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