kiaarviz6950 kiaarviz6950

25-10-2017
Mathematics

contestada

If 3^2x+1=81, what is the value of x?

x=1/4
x=1/2
x=3/2
x=2/3

Respuesta :

brandonhoffmanoycm61 brandonhoffmanoycm61

25-10-2017

3^(2x+1)=81

3^(something)=81
3^4=81. I know this because 3X3X3X3=81
If I know 3^4=81, then I need to find a solution to get 4 for my exponent.
Let's solve.
2x+1=4
2x=3
x=3/2

Answer Link

Otras preguntas

It is recommended that adults should get at least 150 minutes of moderate-intensity physical activity each week. They should also do strength-training exercises

Choose which of the following uses these marks of punctuation correctly. a. Freedom’s Journal (established in New York City in 1827) was the first newspaper i

The time required to finish a test and normally distributed with a mean of 40 minutes in a standard deviation of eight minutes. What is the probability that a s

The formula for final velocity of an object starting from zero and undergoing constant acceleration is v = 1/2at^2. what type of variation does this represent?

How did Great Britain benefit from owning the American colonies

if 75.0% of the isotopes of an element have a mass of 35.0 amu and 25.0% of the isotopes have a mass of 37.0amu what is the atomic mass of the elementA) 35.0amu

What chemical is added to natural gas in case of gas leaks?

Which term refers to the foreign-policy strategy that supported peaceful coexistence with the Soviet Union?

A bag contains 12 one-dollar-bills and 6 hundred-dollar-bills. If 5 bills are randomly selected from the bag, what is the probability that 3 are one-dollar bill

283% of 305 estimate