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
Darya [45]
3 years ago
5

If z varies inversely as x^2, and z = 9 when x = 2/3, find z when x = 5/4

Mathematics
1 answer:
zimovet [89]3 years ago
6 0

Answer:

Step-by-step explanation:

z varies inversely

so z=a/x^2

9=a/(2/3)^2

9=a/(4/9)

9=9a/4

a=4

z=4/x^2

z=4/(5/4)^2

z=4/(25/16)

z=64/25

You might be interested in
Which polygons can be mapped onto each other by similarity transformations?
Julli [10]
Polygon A,B,C,D,E and polygon L,M,N.O.K
3 0
3 years ago
Read 2 more answers
ДОПОМОЖІТЬ, БУДЬ ЛАСКА !!!! МАТЕМАТИКА !!!!!!!!
ivann1987 [24]
Plot a point at the Y-Intercept of -1 and Plot another point at the X-intercept of 1 and the DIGITS graphing tool should make a line from there


6 0
3 years ago
Giving brainiest pls help
Rudik [331]

Answer:

Ivan: 4

Caleb: 4, 4, 4, 4, 4, 4, 4

Step-by-step explanation:

For every 4 Ivan sees, Caleb sees 28. (4 times 7)

7 0
2 years ago
gordan is twice as old as tony was when gordan was as old as tony is now. combined age of gordan and tony is 112 years. how old
Neporo4naja [7]
Gordan is 67 and Tony is 45 years old
5 0
3 years ago
Read 2 more answers
The business college computing center wants to determine the proportion of business students who have personal computers (PC's)
Anastasy [175]

Answer:

Option A) reject null hypothesis if z is greater than 1.645

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 250

p = 30% = 0.3

Alpha, α = 0.05

Number of women belonging to union , x = 75

First, we design the null and the alternate hypothesis  

H_{0}: p = 0.3\\H_A: p > 0.3

This is a one-tailed(right) test.

Rejection Region:

z_{critical} \text{ at 0.05 level of significance } = 1.645

So, the rejection region will be

z > 1.64

That is we will reject the null hypothesis if the calculated z-statistic is greater than 1.645

Option A) reject null hypothesis if z is greater than 1.645

6 0
3 years ago
Other questions:
  • Hey guys someone please help me with this please
    10·1 answer
  • If y = 18, when x = 12, find y when x = 36.
    12·1 answer
  • This is the answer to a problem or an equation.<br><br> Example: For 3x+6=27, this is x=7
    7·1 answer
  • Let X be the number of Heads in 10 fair coin tosses. (a) Find the conditional PMF of X, given that the first two tosses both lan
    15·1 answer
  • PLEASE HELP WILL MARK BRAINLIEST
    7·1 answer
  • Please help if you can it's just some homework.​
    9·1 answer
  • Pastillas de leche are milk candies that originated in the Philippines that contain only two ingredients: sugar and milk. In 18
    14·1 answer
  • pls help!! this is due in like 5 mins :/. (i’ll give u brainiest if u don’t provide a link just pls help me!)
    8·1 answer
  • A system of equation is shown x=10. 3x + 5y =20 what is the solution
    15·1 answer
  • What are the missing factors in the factor tree for 45?<br> 45 <br> 5 <br> A B C
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!