kennedybrock1889 kennedybrock1889

20-08-2018
Mathematics

contestada

The arithmetic mean of two numbers is 18 and the geometric mean is 16. find the sum of squares of the numbers

Respuesta :

lesliekolleroxrkcf lesliekolleroxrkcf

20-08-2018

x+y=36
xy=256

x=256/y
256/y + y = 36

256/y + y²/y = 36y/y

y² - 36y +256 = 0

use the quadratic formula to get 18+2√17 and 18-2√17. ugly numbers but they work!

Answer Link

Otras preguntas

increase the number 1.25 by 8/25 of it

HELP QUICKLY! Find the missing length indicated.

I need help please anyone?!!!!!

Massa says that 540 ÷ 6 = 9. Is he right? Explain how you know using an equation.

If f(x) = x³ - 2, find f(3).

classify the decimal form of the given rational number into terminating and non terminating type

For each experiment, determine whether events A and B are independent or dependent.

The map shows ancient and modern cities in the Indian subcontinent. A map titled Ancient and Modern Cities on the Indian Subcontinent. A key shows Ancient India

u Select the correct text in the passage. Pick out the correct sentences that correctly characterize marine reptiles. Reptiles are warm-blooded creatures; they

Find K such that the number 23K10 is divisible by 2, 3, and 5 2021