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
MrRa [10]
3 years ago
13

The value of y varies inversely as the square of x, and y = 9, when x = 4.

Mathematics
2 answers:
JulijaS [17]3 years ago
8 0

Answer:

The answer is

<h2>12</h2>

Step-by-step explanation:

The above variation is written as

y =  \frac{k}{ {x}^{2} }

where k is the constant of variation

when y = 9

x = 4

We have

k = yx²

k = 9(4)²

k = 9 × 16

k = 144

So the formula for the variation is

y =  \frac{144}{ {x}^{2} }

when y = 1

1 =  \frac{144}{ {x}^{2} }

Cross multiply

x² = 144

Find the square root of both sides

x = √144

x = 12

Hope this helps you.

zmey [24]3 years ago
5 0

±2

Step-by-step explanation:

You might be interested in
4 6 6<br> x 2 7 <br> _____<br> 12865
spin [16.1K]

Answer:

I believe it is 3262

Step-by-step explanation:

7 0
3 years ago
Please help? <br> What is m V?<br> Round only your final answer to the nearest tenth.
Nikolay [14]
I want to say the third option but dont trust my opinion
5 0
3 years ago
Read 2 more answers
What is two times two and one third
eduard
The answer is 14/3 or 4 and 2 thirds
4 0
4 years ago
Read 2 more answers
1. x2 + 12x + 27 = 0<br> what’s the answer ?
Ostrovityanka [42]

Answer:

x^{2} + 3x +9x +27 = 0

x(x+3)+9(x+3)=0

(x+3)(x+9)=0

x=-3, x=-9

Step-by-step explanation:

a=1 b=12 c=27

sum=12

factor=27x 1

          3x9

also 3+9=12

8 0
4 years ago
I WILL MARK BRAINLIEST!!! !!<br><br><br> (picture included with 1 question ^^^^^)
Serga [27]

Answer:

A.

Step-by-step explanation:

you can buy a negative amount of packages so that rules out B and D

C is wrong because you know you need to buy at least one package, so h cannot be zero, and all real numbers include zero

4 0
3 years ago
Other questions:
  • Suppose an isosceles triangle ABC has A = 45° and b = c = 4. What is the length of a^2?
    9·1 answer
  • 14. Given: 5x + 4y = 24, x + 7y= 11; Prove: y= 1<br> Statements<br> reasons
    12·1 answer
  • Which ratio is equivalent to 21:56
    8·1 answer
  • × + 20 + 2× = 10 - 2× - 15
    7·1 answer
  • What is the estimated sum of an orange that costs $0.69 and a hot pepper that costs $0.15 if their prices are rounded to the nea
    11·1 answer
  • There are two groups of people, three in each, for painting a wall. The numbers in the next two sentences express the time (in h
    8·1 answer
  • Explain how to find the middle quartile of a box-and-whisker plot.
    6·1 answer
  • Item 8
    7·2 answers
  • Please solve!!! Bbkakakaj
    8·1 answer
  • e. 2y(y + 3)this is not a quiz it is an assignment that is due tomorrow and I Wil be grateful for anyhelp
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!