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
yulyashka [42]
2 years ago
10

Z varies directly as x^3 and inversely as y^3. if z=59 when x=8 and y=8, find Z if x=3 and y=4

Mathematics
1 answer:
marissa [1.9K]2 years ago
8 0

z=\dfrac{kx^3}{y^3}\\\\\\59=\dfrac{k\cdot 8^3}{8^3}\\k=59\\\\\\z=\dfrac{59x^3}{y^3}\\\\\\z=\dfrac{59\cdot 3^3}{4^3}=\dfrac{1593}{64}

You might be interested in
What multiplies to -4 and adds up to 7?
devlian [24]
The two numbers are (7+ sqrt(65))/2 and (7- sqrt(65))/2

(7+ sqrt(65))/2+ (7- sqrt(65))/2= 7
(7+ sqrt(65))/2* (7- sqrt(65))/2)= -4.

Hope this helps~
6 0
3 years ago
Please help me to solve this sum<br>please gI've correct answer​
disa [49]

This question requires creating a few equations and working through them step-by-step. Now, first let's give each of the shapes a variable: let's say that the blue shape is a, the orange shape is b and the green shape is c.

1. We can technically create six formulas for the magic square, with three for sum of the rows and three for the sum of the columns, however the smartest way to approach this is to observe whether there are any obvious answers that we can get.

We can see in row 2 that there are three of the same shape (a) that add to 57. This makes it very simple to calculate the value of the shape.

Since 3a = 57

a = 57/3 = 19

2. Now we need to find a row or column that includes a and one other shape; we could choose either column 2 or 3, so let's go with column 2. Remembering that the blue shape is a and the orange shape is b:

2a + b = 50

Now, given that a = 19:

2(19) + b = 50

38 + b = 50

b = 12

3. We can now take any of the rows or columns that include the third shape (c) since we already know the values of the other two shapes. Let's take column 1:

a + b + c = 38

19 + 12 + c = 38

31 + c = 38

c = 38 - 31

c = 7

Thus, the value of the blue shape is 19, the value of the orange shape is 12 and the value of the green shape is 7.

3 0
3 years ago
3/5x + 3 please help me out
Monica [59]
I’m sorry but there isn’t enough information here to answer anything. What does the equation equal?
5 0
3 years ago
Read 2 more answers
11 = w - 12 solve the equation. What's the solution
Alinara [238K]
11 = w - 12

11 + 12 = w -12 + 12

w = 11 + 12

w = 23
3 0
3 years ago
A sequence is a function whose<br> is the set of natural numbers.<br> Answer here<br> Need help!!!!
Harrizon [31]
Or a subset of the natural numbers.
8 0
3 years ago
Other questions:
  • A circle has an area of 497 square inches. What is the circumference of the circle?
    13·1 answer
  • Alex sells cars at Keith Palmer Ford. He earns $400a week plus $150per car he sells. If he earned $1450last week, how many cars
    10·2 answers
  • The mean beak depth of a particular finch species is 15 millimeters. assuming the trait is heritable what would happen to the me
    8·1 answer
  • Does the series converge or diverge? If it converges, what is the sum? Show your work. ∑ ∞ n = 1 − 4 ( − 1 / 2 ) n − 1
    11·1 answer
  • Simplify the expression:<br> 10x + -8x + -10x+ -10 + 8x + -6x
    9·1 answer
  • David has suppose to have 10 people in his car but he has 5 how many people not in the car.
    5·2 answers
  • Which situation represents a proportional relationship?
    7·2 answers
  • Help I keep failing! Thx in advance! Will give brainliest
    12·1 answer
  • Jackson wants to form a rectangular pen with 420 ft. of fencing. What should the dimensions be to provide the maximum area?
    14·1 answer
  • SQUARE ROOT OF 16<br><br>THANKS​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!