04-04-2017
Mathematics

contestada

7^-1+9^-1, how do you solve this exponent equation?

Respuesta :

bfelson bfelson

04-04-2017

Raising to a negative power just makes the base value into a fraction

For example, x^-1 turns into (1/x^1)

This means that your equation goes from
7^-1+9^-1 to (1/7)+(1/9)

1/7+1/9 simplifies to 16/63 after all of the common denominator stuff

So, in short 7^-1+9^-1 = 16/63

Answer Link

Otras preguntas

Condense (cos92°)(cos133°)-(sin92°)(sin133°) into a singular trigonometric function expression, then find the exact value.

What effect did the economic hardships of the Great Depression have on American voters' attitudes toward the federal government?

It takes 15 caterpillars 24 hours to eat all the leaves on the bush in Violetta's front yard. How many hours would it take 18 caterpillars to eat the same bush,

a company has developed a new type of light bulb, and wants to estimate its mean lifetime. a simple random sample of 12 bulbs had a sample mean lifetime of 614

Help hejee ejeje ehjsbshshshw aa a a a a

The controller of Fortnight Co. has requested a quick estimate of the manufacturing supplies needed for the Cleveland Plant for the month of July, when producti

Which factor affects the climate of an area due to differences in specific heat? Please help ASAP A mountains B large bodies of water C latititude D longitude

What goal does scarlet ibis wanted

Summary of chapter 9 (Fate) Red Scarf Girl

1. Compare the data sets below by finding the range and IQR. Set A: {8, 11, 17, 21, 13, 19, 9, 16, 12, 7, 14} Set B: {17, 14, 19, 15, 10, 16, 17, 13, 18, 17, 16