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aniked [119]
3 years ago
6

How many solutions does : 3y = -6x + 9 y = -6x + 9

Mathematics
2 answers:
balandron [24]3 years ago
5 0

Answer:

It has three solutions.

Step-by-step explanation:

  1. Elimination method
  2. Substitution method
  3. Graphical method

Here are the ones which i know.

stepladder [879]3 years ago
3 0

Answer:

Exactly 1 solution

Step-by-step explanation:

First we must disrupte3y+27=12y+13

Next we switch one number to the other side27=9y+13

Now we must switch the other number14=9y

Now we must solve by dividing 14 by 9y=1.555

This is one solution, so we now have our answer.

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Each of 11 refrigerators of a certain type has been returned to a distributor because of an audible, high-pitched, oscillating n
Pie

Answer:

The correct answer is 1,51%

Step-by-step explanation:

To get the probability  equally likely of the first 6 examined that have a defective compressor, we use the following formula

P=# of possibilities that meet the condition / #of equally likely possibilities.

As there are multiple events ,  and all must be achieve, we multiply the probabilities.

P1=7 / 11

P2=6 / 10

P3=5 / 9

P4=4 / 8

P5=3 / 7

P6=2 / 6

P(x)=7 / 11*6 / 10*5 / 9*4 / 8*3 / 7*2 / 6=0,01515151515

P(x)=1,51%

3 0
3 years ago
Write 3,200 in scientific notation
spin [16.1K]

Answer:

The answer is 3.2 E 3 or 3.2 x 10^3

You move back 3 spaces which is 3.2, since you moved back 3 spaces, you put 3 as the power/exponet.

To be more satisfied, 3.2 is your base number, it is the big number Below the power/exponent. The power/exponent is 3, you moved 3 spaces and you moved to the left, so it is represented as a positive power/exponent.

Hope this helps.

8 0
3 years ago
De cite ori trebuie micsorat numarul 1000 pentru a obtine numarul cu 10 mai putin decit 50.
amid [387]
The answer is 19.8 to ur problem

5 0
3 years ago
What speed must you toss a ball straight up so that it takes 4 s to return to you? Show your work.
vekshin1
1) Type of  motion: constant acceleration.
 
2) acceleration, a = 9.8 m/s^2

3) time up = time down = 4seconds / 2 = 2 seconds

4) formula = Vf = Vo - a*t^2/2

Vf = 0 => Vo = a*t^2 / 2 = 9.8m/s^2 * (2 s)^2 / 2 = 19.6 m/s

Answer: 19.6 m/s
4 0
3 years ago
I dont know how to do this please help and also please explain, thank you:)​
saveliy_v [14]

Answer:

A

Step-by-step explanation:

it's A lol

.................................

8 0
3 years ago
Read 2 more answers
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