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mihalych1998 [28]
3 years ago
10

Q.4 - Please Help, I will give Brainliest!!!!

Mathematics
1 answer:
ankoles [38]3 years ago
4 0
-x/12 = -(1/12)(x) or D
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A woman has 7 keys. only one of them will open her door. when seh arrives at the door there is no sufficient light for her to fi
Gala2k [10]
Since she has seven key the probability that the first one will open the door is
\frac{1}{7}
if it takes three attempts to open the door,the probability is
\frac{1}{3}
if the three attempts would not work
then the probability that the fourth attempt will open the door is
\frac{1}{4}
hope this helps
7 0
3 years ago
Y = – 3
KonstantinChe [14]

The  best approximation for the solution to this system of equations is (-2.2,-3)

Option C is correct.

Step-by-step explanation:

Solving the system of equations to get the exact value of x:

y = -3\\y = x-0.8

Let

y = -3\,\,eq(1)\\y = x-0.8\,\,eq(2)

Putting value of y from eq(1) into eq(2)

-3=x-0.8

x=-3+0.8

x=-2.2

So, Value of x is -2.2

The  best approximation for the solution to this system of equations is:

x=-2.2 and y = -3

(-2.2,-3)

Option C is correct.

Keywords: System of equations

Learn more about system of equations at:

  • brainly.com/question/9045597
  • brainly.com/question/3739260
  • brainly.com/question/13168205

#learnwithBrainly

6 0
3 years ago
Read 2 more answers
Answer 37, 38, and 39 and make sure to answer with either the letter or with one of the answers shown! SHOW YOUR WORK PLEASE!!
ollegr [7]

Answer:

I didn't even realize until I had written all of the answers down that they are all <u><em>C.</em></u>

37 = C. <u>15%</u>

38 = C. <u>2x^{3}</u>

39 = C. <u>48</u>

Step-by-step explanation:

37: I used process of elimination to figure out which percentage of decrease it was by just multiplying 42 by each percentage until I got 6.3 which is what you need to subtract from 42 to get 35.7, so the answer is C, or 15%.

38: A coefficient is the number that is being multiplied by the variable, which in this case is "x". So whatever answer involves "2x" is the correct answer. Therefore the answer is C, or <u>2x^{3}.</u>

39: You have to add the amount of money Henry paid for painting supplies and how much profit he mad to figure out how much money he really made. 400 + 560 = 960 and he charges $20 for each painting so you need to divide 960/20 to get your answer, which is C, or 48.

8 0
3 years ago
What is the percent change of 6 <br> to 36
Kaylis [27]
There is a 483% Change
4 0
3 years ago
The temperatures (in degrees Fahrenheit) in Long Island recorded by the weather bureau over a week were 42, 49, 53, 55, 50, 47,
sattari [20]

Answer:

55

Step-by-step explanation:

5 0
2 years ago
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