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
Anni [7]
3 years ago
11

Point R(−3, 9) belongs to the graph of the function y= k/x^2 . Find the value of k.

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
4 0

Answer:

k = 81

Step-by-step explanation:

y = k / x²

Plug in values.

9 = k / (-3)²

9 = k / 9

Solve for k by multiplying both sides by 9.

k = 81

You might be interested in
BRAINLIESSSSTTTT!!!
trapecia [35]
A. (-5,1)
B. (-5,4)
C. (-2,4)

6 0
3 years ago
Let u = &lt;-9, 4&gt;, v = &lt;8, -5&gt;. Find u - v. <br> URGENT
Pie

To subtract vectors, you simply have to subtract correspondent coordinates.

So, if you have

u = \langle u_1,\ u_2,\ldots u_n\rangle ,\quad v = \langle v_1,\ v_2,\ldots v_n\rangle

the subtraction is simply

u-v = \langle u_1-v_1,\ u_2-v_2,\ldots u_n-v_n\rangle

So, in your case, we have

\langle-9,4\rangle-\langle 8,-5\rangle=\langle -9-8, 4+5\rangle=\langle -17,9\rangle

3 0
3 years ago
What is the value of the expression shown below 10+(2x3)^2 divided by 4x (1/2)^3
stira [4]

Answer:

10 + (2 x 3)^2 / 4 x (1/2) ^3

First do the parentheses

2 x 3 = 6

1 / 2 = 0.5

We are left with

10 + 6^2 /4 x 0.5^3

Do exponents

6 x 6 = 36

0.5 x 0.5 x 0.5 = 0.125

10 + 36 / 4 x 0.125

Divide by 4 and multiply by 0.125

36 / 4 = 9

9 x 0.125 = 1.125

We are left with

10 + 1.125 = 11.125

The answer is 11.125

Step-by-step explanation:

7 0
3 years ago
Umm I need a lot pf help here im lost
OleMash [197]

Answer:

51.39 units³

Step-by-step explanation:

The volume (V) of the prism is calculated as

V = area of base × height

Here area of base = 5.71 and height = 9, thus

V = 5.71 × 9 = 51.39 units³

7 0
3 years ago
Read 2 more answers
Slope for the line perpendicular to the line shown in the graph
Flauer [41]
It would be positive 1/3 because if you move to the right one on your bottom point and up 3 it gives you +1/3
8 0
3 years ago
Other questions:
  • Find the slope of the tangent line to the graph of f at the given point. f(x) = x√ at (36,6) 1/3 1/12 3 12
    7·2 answers
  • Which is greater 3/5 or 23%
    6·1 answer
  • Please help thank you so much and show all work
    9·2 answers
  • How much do these pictures repesent in fractions, a and b(and plz click in the photo and look at it sideways)
    12·1 answer
  • Im on a time limit please help i will give brainliest!
    14·1 answer
  • Which angle is complementary to &lt;ADB?
    15·2 answers
  • Please help with this if you don’t know don’t answer
    13·1 answer
  • Please help asap !!!
    9·1 answer
  • A rocket is launched from the top of a 70 foot cliff with an initial velocity of 130 feet per second. The height, h, of the rock
    6·1 answer
  • 16. Solve for "x".<br> a. 6<br> b. 100<br> c. 36
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!