etiiniabasiesiere
etiiniabasiesiere etiiniabasiesiere
  • 08-06-2020
  • Mathematics
contestada

x varies jointly as y^3 and square root of z . If x = 7 when y = 2 and z = 4, find x correct to 2 decimal places, when y = 3 and z = 9.

Respuesta :

adioabiola
adioabiola adioabiola
  • 14-06-2020

Answer:

x=35.44

Step-by-step explanation:

x=ky^3 and√z

x=k(y^3)(√z)

Find k when

x=7

y=2

z=4

7=k(2^3)(√4)

7=k(8)(2)

7=k(16)

7=16k

k=7/16

Find x when y=3, z=9

x=k(y^3)(√z)

x=(7/16)(3^3)(√9)

x=(7/16)(27)(3)

=7/16(81)

=567/16

x=35.4375

Approximate to 2 decimal places

x=35.44

Answer Link

Otras preguntas

Which of the following best describes a plane ? A The surface of a flat table B The edge of a desk C A curve in a road D The point of intersections of two w
what was the four crises that the Washington administration faced.
i don’t understand anything please help me with these 3
What was the impact of Red Cloud’s War on the Indian Wars?
Josh marked 12% of the emails in his box as important if he has 125 emails in his inbox how many Did he Mark as important
Which principle of design suggests an inequitable distribution of the visual weight of elements in an artwork? pattern asymmetrical balance rhythm symmetrical b
The buildup of fatty substances such as cholesterol and saturated fats inside the artery walls results in which cardiovascular disease?
In your own words, write a definition for the word:Base:
Which species Al or Cu will have the greater attraction for the chlorine atom?
Why children shouldn’t have to do chores reason that I could write a paragraph on