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
weeeeeb [17]
3 years ago
12

A direct variation passes through the point (-3,9) given y varies directly as x find the value of y when x is 2

Mathematics
1 answer:
frutty [35]3 years ago
5 0

Answer:

<em>y=-6</em>

Step-by-step explanation:

<u>Proportions</u>

A direct proportion is a relation between variables where their ratio is a constant value. This means that if y and x are proportional, then:

y = kx

Where k is the constant of proportionality.

Substituting x=-3 y=9:

9 = k(-3)

k=\frac{9}{-3}=-3

Now the relationship is:

y = -3x

For x=2

y = -3(2) = -6

You might be interested in
A circle with a radius of 10 inches is placed inside a square with a side length of 20 inches. Find the probability that a dart
melamori03 [73]

Answer:

The correct answer is last option 78.5%

Step-by-step explanation:

Points to remember

Area of circle = πr²

Where r is the radius of circle

Area of square = a²

Where 'a' is the side length of square

<u>To find the area of circle</u>

Here r = 10 cinches

Area =  πr²

 =  3.14 * 10²

 = 3.14 * 100 = 314

<u>To find the area of square</u>

Here a = 20 inches

Area = a²

 = 20²

 = 400

<u>To find the probability percentage</u>

Probability = area of circle/Area of square

 = (314/400)*100

 78.5 %

7 0
3 years ago
Read 2 more answers
Please help me!!!!!!!
telo118 [61]

9514 1404 393

Answer:

  1. R'(-2, 2)
  2. F'(2, 2)
  3. G'(-2, -2)

Step-by-step explanation:

It can be useful to keep a list of the 90° rotation transformations.

  (x, y) ⇒ (-y, x) . . . . . . 90° CCW, 270° CW

  (x, y) ⇒ (-x, -y) . . . . . . 180°

  (x, y) ⇒ (y, -x) . . . . . . . 270° CCW, 90° CW

__

1) (x, y) ⇒ (-x, -y) . . . . 180°

  R(2, -2) ⇒ R'(-2, 2)

__

2) (x, y) ⇒ (-y, x) . . . . 90°

  F(2, -2) ⇒ F'( 2, 2)

__

3) (x, y) ⇒ (y, -x) . . . . 270°

  G(2, -2) ⇒ G'(-2, -2)

7 0
3 years ago
I need help
-Dominant- [34]
<h3>✽ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ✽</h3>

➷ Just divide the values:

360/5 = 72

The change is your account balance would be $72

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

5 0
3 years ago
The price Jimmy paid for a video game is. 85x. What was the discount ?
nalin [4]
(0.85x - x/x)*100= (0.85 - 1)*100= 0.15*(100)= -15
6 0
4 years ago
Read 2 more answers
8 people are equally sharing 12 muffins how many muffins will each person receive
Len [333]
Total number of muffins = 12 muffins
Total number of people sharing muffin = 8

Muffins each person will receive = Total number of muffins
                                                          ---------------------------------
                                                          People sharing muffins
                                                   
                                                    = 12/8
<span>                                                    = </span><span>1 1/2  OR  1.5 muffins
</span>
5 0
3 years ago
Other questions:
  • A football team gained 9 yards on one play and then lost 22 Yards on the next. Write a sum of integers to find the overall chang
    14·1 answer
  • Teresa has a bird feeder in the shape of a triangular pyramid. The base of the pyramid has a length of 5 inches and a height of
    7·2 answers
  • Expand the given power using the Binomial Theorem. (10k – m)5
    8·1 answer
  • What solution is this 2x=3x
    10·1 answer
  • Math question
    9·1 answer
  • Which method could be used to prove they are similar?<br> 1.5<br> 3<br> 4.5<br> Jy
    8·1 answer
  • Which pair of angles is supplementary?
    15·1 answer
  • Which ones are linear and nonlinear?<br><br>NEED ASAP <br>RIGHT ANSWER WILL GET MARKED AS BRAINLIEST
    14·1 answer
  • it takes 4 pints to fill one jug of water. quasim needs to fill 8 jugs. how much water does he need to fill the jugs in quarts?​
    10·1 answer
  • HURRY PLS! fill in the boxes
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!