1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zavuch27 [327]
3 years ago
5

Y varies jointly as x and √z . If y = 6 when x = 3 and z = 9, find y when x = 4 and √z = 3.6.

Mathematics
1 answer:
Alenkinab [10]3 years ago
5 0
Y =  kx√z   where k is some constant

To find the value of k we plug in the given values of x,y and z:-

6 = k*3*√9
6 = k*3*3
9k = 6
k = 6/9 = 2/3

so the relation is y = (2/3)x√z

When x = 4 and √z = 3.6 we have:-

y = (2/3)*4 * 3.6

=  9.6 Answer

You might be interested in
Is this proportion true 12/15=47/50<br>16/36=12/27<br>15/20=24/26<br>or 4/16=2/14
jekas [21]
For <span>12/15=47/50, we multiply 12/15 by (1/3)/(1/3) to get 4/5. For 47/50, we multiply it by (1/10)/(1/10) to get the same denominator and 4/7/5. They are not equal.

For 16/36 and 12/27, we'll notice that 36 and 27 are both multiples of 9, so we need to get that as the denominator! Multiply 16/36 by (1/4)/(1/4) because 9 goes into 36 4 times and 12/27 by (1/3)/(1/3) due to that 27 goes into 9 3 times, we get 4/9=4/9 - these are equal!

I challenge you to get the rest of them on your own using my techniques!</span>
3 0
3 years ago
The solutions of a quadratic equation are ​-4,9 Write a related quadratic function in factored form.
Yuri [45]

Answer:

y = (x + 4)(x - 9)

Step-by-step explanation:

x = {-4, 9}

y = (x + 4)(x - 9)

3 0
3 years ago
Mr. Falk is going to replace the carpet in his basement. The basement is
Rzqust [24]
<h3>Answer:  1728 dollars</h3>

==========================================================

Explanation:

1 yard = 3 feet

We'll divide by 3 to convert from feet to yards

  • 27 feet = 27/3 = 9 yards
  • 18 feet = 18/3 = 6 yards

The basement is 9*6 = 54 square yards in floor area.

At $32 per square yard, the total cost to carpet the floor is 32*54 = 1728 dollars.

7 0
3 years ago
What’s the answer to number 1
Mumz [18]
The answer is D. Best of luck!
3 0
3 years ago
Choose the expression that is equivalent to 12p2-2/5(5p2-10)+3p
Margarita [4]

Answer:

10p^2+3p+4

Step-by-step explanation:

12p^2-\frac{2}{5} (5p^2-10)+3p\\12p^2-0.4 (5p^2-10)+3p\\12p^2-2p^2+4+3p\\10p^2+3p+44

8 0
3 years ago
Other questions:
  • Write the equation of the line passing through the given pair of points. (-9, 7) and (-9, -1)
    15·1 answer
  • The Smiths leave Indiana at 6:00 am to travel to Georgia. They stop for 4 breaks totaling 3 hours and stop to visit some friends
    9·2 answers
  • What are the square numbers of 45
    5·2 answers
  • Find the measure of ABC. Show work.
    11·1 answer
  • Simplify (x − 4)(x2 − 2x − 3).
    14·2 answers
  • HELP PLEASE NEED IT THANKS
    11·1 answer
  • Carl drove to his grandmother’s house. He drove for 6 hours and averaged a speed of 55 miles per hour. At the end of 6 hours he
    7·1 answer
  • How many unit cubes are on each layer of the cube?<br><br> 6<br> 3<br> 12<br> 9
    10·1 answer
  • I’m really stupid. I need help
    6·2 answers
  • I need help please help
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!