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Ulleksa [173]
3 years ago
12

How do you do this, I don’t understand it

Mathematics
2 answers:
Otrada [13]3 years ago
7 0
For the first line start at -1 and from there go up to and to the right three
for the second line on nuber one start at 4 and down 1 and to the left 1
nignag [31]3 years ago
3 0
You hav to find out what the y stand for
You might be interested in
What are the x and y intercepts of 3y=2x-6
sasho [114]
How to find the x intercept of 3y=2x-6: (when y is 0)

3(0) = 2x - 6

     0 = 2x - 6
   +6        + 6
-------------------------
     6 = 2x
  ------ -----
     2     2
      
     x = 3


How to find the y intercept of 3y=2x-6: (when x  is 0)

 3y = 2(0) - 6

 y = 0 - 6

  3y = -6
------  -----
   3      3

   y = -2















8 0
3 years ago
if you roll a fair 6-sided die 9 times, what is the probability that at least 2 of the rolls come up as a 3 or a 4?
Kay [80]

Using the binomial distribution, it is found that there is a 0.857 = 85.7% probability that at least 2 of the rolls come up as a 3 or a 4.

For each die, there are only two possible outcomes, either a 3 or a 4 is rolled, or it is not. The result of a roll is independent of any other roll, hence, the <em>binomial distribution</em> is used to solve this question.

Binomial probability distribution

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

C_{n,x} = \frac{n!}{x!(n-x)!}

The parameters are:

  • x is the number of successes.
  • n is the number of trials.
  • p is the probability of a success on a single trial.

In this problem:

  • There are 9 rolls, hence n = 9.
  • Of the six sides, 2 are 3 or 4, hence p = \frac{2}{6} = 0.3333

The desired probability is:

P(X \geq 2) = 1 - P(X < 2)

In which:

P(X < 2) = P(X = 0) + P(X = 1)

Then

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{9,0}.(0.3333)^{0}.(0.6667)^{9} = 0.026

P(X = 1) = C_{9,1}.(0.3333)^{1}.(0.6667)^{8} = 0.117

Then:

P(X < 2) = P(X = 0) + P(X = 1) = 0.026 + 0.117 = 0.143

P(X \geq 2) = 1 - P(X < 2) = 1 - 0.143 = 0.857

0.857 = 85.7% probability that at least 2 of the rolls come up as a 3 or a 4.

For more on the binomial distribution, you can check brainly.com/question/24863377

7 0
2 years ago
Fatima has a car detailing service. She charges $15.00 for a vacuum, $40.00 for exterior wash and wax, and $60.00 for complete i
bezimeni [28]

Answer:

d 40 times 23=920

Step-by-step explanation:

if you did 60 times 15= 900

the highest is  920

6 0
3 years ago
Question is attached
Arlecino [84]

Answer:

Let v = ml of 100% vinegar

Then 150-v = ml of dressing

v  + .05(150-v) = .24(150)

v + 7.5 - .05v = 36

.95v = 28.5

v = 28.5/.95

v = 30 ml of vinegar

dressing = 150-30 = 120 ml

Step-by-step explanation:

7 0
3 years ago
A health club charges a $130 yearly membership fee and $3 for each day a member uses the health facilities. If the member paid $
Blizzard [7]
This is the answer for your question: y=3x+130
8 0
3 years ago
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