20-12-2018
Mathematics

contestada

13. Solve –5√ x = –15. A. x = –9 B. x = –7 C. x = 9 D. x = 7

Respuesta :

21-12-2018

[tex]Domain:x\geq0\\\\-5\sqrt{x}=-15\qquad\text{divide both sides by (-5)}\\\\\sqrt{x}=3\to \boxed{x=9}\to\boxed{C.}[/tex]

Answer Link

Otras preguntas

How does reflection differ from refraction and diffraction?

Oscar is writing a fictional autobiography. he is combining real events with those that could have happened, as well as a few creative additions. oscar's writin

Jane, looking for tarzan, is running at top speed (6.8 m/s) and grabs a vine hanging vertically from a tall tree in the jungle. how high can she swing upward?

Airlines have developed frequent-flyer programs to encourage passengers to use the same airlines repeatedly. these programs and other similar ones use ________

An office will randomly select one computer to check for viruses and other problems. Five of the office computers are less than one year old, 5 are 1 to 2 year

When a pair of dice is rolled, what is the probability that the sum of the dice is 10 , given that the outcome is not 3 ?

Find the vertex, focus, directrix, and focal width of the parabola. x2 = 12y

Simplify the following expression: sin^2 θ * cos^2 θ - cos^2 θ

jennifer is a sales leader at a local clothing boutique. which lever of management is she in? A. Human resources B. Middle management C. Top management D. S

what is the goal of conspicuous consumption