<< Chapter < Page Chapter >> Page >

y varies directly as x and when x = 6 ,   y = 12.

Got questions? Get instant answers now!

y varies directly as the square of x and when x = 4 ,   y = 80 . 

y = 5 x 2

Got questions? Get instant answers now!

y varies directly as the square root of x and when x = 36 ,   y = 24.

Got questions? Get instant answers now!

y varies directly as the cube of x and when x = 36 , y = 24.

y = 10 x 3

Got questions? Get instant answers now!

y varies directly as the cube root of x and when x = 27 ,   y = 15.

Got questions? Get instant answers now!

y varies directly as the fourth power of x and when x = 1 ,   y = 6.

y = 6 x 4

Got questions? Get instant answers now!

y varies inversely as x and when x = 4 ,   y = 2.

Got questions? Get instant answers now!

y varies inversely as the square of x and when x = 3 ,   y = 2.

y = 18 x 2

Got questions? Get instant answers now!

y varies inversely as the cube of x and when x = 2 ,   y = 5.

Got questions? Get instant answers now!

y varies inversely as the fourth power of x and when x = 3 ,   y = 1.

y = 81 x 4

Got questions? Get instant answers now!

y varies inversely as the square root of x and when x = 25 ,   y = 3.

Got questions? Get instant answers now!

y varies inversely as the cube root of x and when x = 64 ,   y = 5.

y = 20 x 3

Got questions? Get instant answers now!

y varies jointly with x and z and when x = 2 and z = 3 ,   y = 36.

Got questions? Get instant answers now!

y varies jointly as x ,   z , and w and when x = 1 ,   z = 2 ,   w = 5 , then y = 100.

y = 10 x z w

Got questions? Get instant answers now!

y varies jointly as the square of x and the square of z and when x = 3 and z = 4 , then y = 72.

Got questions? Get instant answers now!

y varies jointly as x and the square root of z and when x = 2 and z = 25 , then y = 100.

y = 10 x z

Got questions? Get instant answers now!

y varies jointly as the square of x the cube of z and the square root of W . When x = 1 , z = 2 , and w = 36 , then y = 48.

Got questions? Get instant answers now!

y varies jointly as x   and   z and inversely as w . When x = 3 ,   z = 5 , and w = 6 , then y = 10.

y = 4 x z w

Got questions? Get instant answers now!

y varies jointly as the square of x and the square root of z and inversely as the cube of w .  When x = 3 , z = 4 , and w = 3 , then y = 6.

Got questions? Get instant answers now!

y varies jointly as x and z and inversely as the square root of w and the square of t  . When x = 3 , z = 1 , w = 25 , and t = 2 , then y = 6.

y = 40 x z w t 2

Got questions? Get instant answers now!

Numeric

For the following exercises, use the given information to find the unknown value.

y varies directly as x . When x = 3 , then y = 12. Find y wneh x = 20.

Got questions? Get instant answers now!

y varies directly as the square of x . When x = 2 , then y = 16. Find y when x = 8.

y = 256

Got questions? Get instant answers now!

y varies directly as the cube of x . When x = 3 , then y = 5.   Find y when x = 4.

Got questions? Get instant answers now!

y varies directly as the square root of x . When x = 16 , then y = 4. Find y when x = 36.

y = 6

Got questions? Get instant answers now!

y varies directly as the cube root of x . When x = 125 , then y = 15. Find y when x = 1,000.

Got questions? Get instant answers now!

y varies inversely with x . When x = 3 , then y = 2. Find y when x = 1.

y = 6

Got questions? Get instant answers now!

y varies inversely with the square of x . When x = 4 , then y = 3. Find y when x = 2.

Got questions? Get instant answers now!

y varies inversely with the cube of x . When x = 3 , then y = 1. Find y when x = 1.

y = 27

Got questions? Get instant answers now!

y varies inversely with the square root of x . When x = 64 , then y = 12. Find y when x = 36.

Got questions? Get instant answers now!

y varies inversely with the cube root of x . When x = 27 , then y = 5. Find y when x = 125.

y = 3

Got questions? Get instant answers now!

y varies jointly as x   and   z . When x = 4 and z = 2 , then y = 16. Find y when x = 3 and z = 3.

Got questions? Get instant answers now!

y varies jointly as x ,   z ,   and   w . When x = 2 , z = 1 , and w = 12 , then y = 72. Find y when x = 1 , z = 2 , and w = 3.

y = 18

Got questions? Get instant answers now!

y varies jointly as x and the square of z. When x = 2 and z = 4 , then y = 144. Find y when x = 4 and z = 5.

Got questions? Get instant answers now!

y varies jointly as the square of x and the square root of z . When x = 2 and z = 9 , then y = 24. Find y when x = 3 and z = 25.

y = 90

Got questions? Get instant answers now!

y varies jointly as x and z and inversely as w . When x = 5 , z = 2 ,   and   w = 20 , then y = 4. Find y when x = 3 and z = 8 ,   and   w = 48.

Got questions? Get instant answers now!

y varies jointly as the square of x and the cube of z and inversely as the square root of w .  When x = 2 , z = 2 , and w = 64 , then y = 12. Find y when x = 1 , z = 3 , and   w = 4.

y = 81 2

Got questions? Get instant answers now!

Questions & Answers

(1+cosA)(1-cosA)=sin^2A
BINCY Reply
good
Neha
why I'm sending you solved question
Mirza
Teach me abt the echelon method
Khamis
exact value of cos(π/3-π/4)
Ankit Reply
What is differentiation?
Intakhab Reply
modul questions trigonometry
Thamarai Reply
(1+cosA)(1-cosA)=sin^2A
BINCY
differentiate f(t)=1/4t to the power 4 +8
Jessica Reply
I need trigonometry,polynomial
duru Reply
ok
Augustine
Why is 7 on top
Bertha Reply
simplify cot x / csc x
Catherine Reply
👉🌹Solve🌻 Given that: cotx/cosx =cosx/sinx/cosx =1/sinx =cosecx Ans.
Vijay
what is the period of cos?
SIYAMTHEMBA Reply
your question might not seem clear as you asked. ask well to get perfect answers put your question on a table I'm willing to help you Mr Siyamthemba
Patrick
simplify: cot x/csc x
Catherine
sorry i didnt realize you were actually asking someone else to put their question on here. i thought this was where i was supposed to.
Catherine
some to dereve formula for bulky density
kurash
Solve Given that: cotx/cosx =cosx/sinx/cosx =1/sinx =cosecx Ans.
Vijay
if tan alpha + beta is equal to sin x + Y then prove that X square + Y square - 2 I got hyperbole 2 Beta + 1 is equal to zero
Rahul Reply
questions
Thamarai
ok
AjA
sin^4+sin^2=1, prove that tan^2-tan^4+1=0
SAYANTANI Reply
what is the formula used for this question? "Jamal wants to save $54,000 for a down payment on a home. How much will he need to invest in an account with 8.2% APR, compounding daily, in order to reach his goal in 5 years?"
Kuz Reply
i don't need help solving it I just need a memory jogger please.
Kuz
A = P(1 + r/n) ^rt
Dale
how to solve an expression when equal to zero
Mintah Reply
its a very simple
Kavita
gave your expression then i solve
Kavita
Hy guys, I have a problem when it comes on solving equations and expressions, can you help me 😭😭
Thuli
Tomorrow its an revision on factorising and Simplifying...
Thuli
ok sent the quiz
kurash
send
Kavita
Hi
Masum
What is the value of log-1
Masum
the value of log1=0
Kavita
Log(-1)
Masum
What is the value of i^i
Masum
log -1 is 1.36
kurash
No
Masum
no I m right
Kavita
No sister.
Masum
no I m right
Kavita
tan20°×tan30°×tan45°×tan50°×tan60°×tan70°
Joju Reply
jaldi batao
Joju
Find the value of x between 0degree and 360 degree which satisfy the equation 3sinx =tanx
musah Reply
Practice Key Terms 7

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Algebra and trigonometry. OpenStax CNX. Nov 14, 2016 Download for free at https://legacy.cnx.org/content/col11758/1.6
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Algebra and trigonometry' conversation and receive update notifications?

Ask