amadoukamara85 amadoukamara85

23-08-2016
Mathematics

contestada

solve each equation by taking square roots

9r^2 +3=-204

Respuesta :

dalendrk dalendrk

26-08-2016

9r² + 3 = -204 |subtract 3 from both sides

9r² = -207 |divide both sides by 9

r² = -23 < 0 NO REAL SOLUTIONS

COMPLEX SOLUTION:

r² = -23 ⇔ r = √(-23) = i√23

Answer Link

Otras preguntas

Before 1880, most of the immigrants were from western Europe. After 1880, 70% of the immigrants were from A. Asia. B. Ireland. C. northern Russia and east

Equation A y = 4/x + 3 Equation B y = −2x − 4 Which statement best compares the graphs of the two equations?A: both are linearB: both are non-linearC: Equatio

4.5 moles of carbon monoxide is hoe many grams

Is y=arcsec(1) equivalent to 0? Thanks!

the gasoline gauge on a van initially read 1/8 full. When 15 gallons were added to the tank the gauge read 3/4 full. How many more gallons are needed to fill th

Identify the 12th term of a geometric sequence where a1 = 8 and a6 = -8,192. 134,217,728 33,554,432 -33,554,432 -134,217,728

If the lake is 60 miles away and Rene is driving at 40 miles a hour the whole time how long will it take for her to get to the lake

what is 95% of 600 ?

Find the equation, in standard form, of the line passing through the points (3,-4) and (5,1)

Find the product mentally. (2j + 7)(2j - 7) A: 4j2 + 49 B: 4j2 - 49 C: 2j2 - 28j - 49