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Elena-2011 [213]
3 years ago
13

Please need help it’s due today.

Mathematics
1 answer:
Mariana [72]3 years ago
7 0

9514 1404 393

Answer:

  • A, E, slope of 6
  • B, F, slope of 1/4
  • C, D, slope of 2/5

Step-by-step explanation:

Each triangle represents a triangle that could be used to compute the slope of a line. That slope is the ratio of the vertical measure to the horizontal measure. For each of the triangles shown, the associated slopes are ...

  A: 54/9 = 6

  B: 15/60 = 1/4

  C: 18/45 = 2/5

  D: 16/40 = 2/5

  E: 72/12 = 6

  F: 13/52 = 1/4

Then the boxes on each horizontal line can be filled with ...

  A: (E, 6)

  B: (F, 1/4)

  C: (D, 2/5)

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PLEASE help
astraxan [27]

Answer:

The percentage of people should be seen by the doctor between 13 and

17 minutes is 68% ⇒ 2nd term

Step-by-step explanation:

* Lets explain how to solve the problem

- Wait times at a doctor's office are typically 15 minutes, with a standard

 deviation of 2 minutes

- We want to find the  percentage of people should be seen by the

 doctor between 13 and 17 minutes

* To find the percentage we will find z-score

∵ The rule the z-score is z = (x - μ)/σ , where

# x is the score

# μ is the mean

# σ is the standard deviation

∵ The mean is 15 minutes and standard deviation is 2 minutes

∴ μ = 15 , σ = 2

∵ The people should be seen by the doctor between 13 and

   17 minutes

∵ x = 13 and 17

∴ z = \frac{13-15}{2}=\frac{-2}{2}=-1

∴ z = \frac{17-15}{2}=\frac{2}{2}=1

- Lets use the standard normal distribution table

∵ P(z > -1) = 0.15866

∵ P(z < 1) = 0.84134

∴ P(-1 < z < 1) = 0.84134 - 0.15866 = 0.68268 ≅ 0.68

∵ P(13 < x < 17) = P(-1 < z < 1)

∴ P(13 < x < 17) = 0.68 × 100% = 68%

* The percentage of people should be seen by the doctor between

  13 and 17 minutes is 68%

6 0
3 years ago
There are 3 quarters, 4 dimes and 7 nickels in a change purse. Suppose 3 coins are selected without replacement. What is the pro
qwelly [4]
Prob of just quarter is 3/14 for a dime is 4/14 and for a nickel its 7/14
then all you do is multiply them all together to get 306122449/<span>10000000000 that took me way to long</span>
6 0
3 years ago
Read 2 more answers
I'm lazy but have a lot of points
ohaa [14]

Answer: 37

Step-by-step explanation:

Well DCB is a right angle, and there is already half which is 53 degrees, subtract 90 by 53 and you will get your answer.

4 0
3 years ago
Expanded form of 582, 030
Step2247 [10]

Expanded form of 582, 030

500000 + 80000 + 2000 + 30

6 0
3 years ago
QR is the radius of R and PQ is the tangent to R. Find the value of x.
steposvetlana [31]

Answer:

x = 39

Step-by-step explanation:

We know that PRQ is a right triangle, so we use the pythagorean theorem to solve the problem. The theorem states that a^2 + b^2 = c^2. Let's assume that the length of RP is c, the length of PQ is a and x is b. We plug the lengths into the equation and solve it:

80^2 + x^2 = 89^2

6400 +x^2 = 7921

x^2 = 1521

x = \sqrt{1521}

x = 39

5 0
2 years ago
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