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nlexa [21]
3 years ago
9

The mean annual salary for environmental compliance specialists is about $66,000.  A random sample of 35 specialists is selected

from this population.  What is the probability that the mean salary of the sample is less than $60,000?  Assume σ=$12,000, and round your answer to 4 decimal places.
Mathematics
1 answer:
AleksandrR [38]3 years ago
6 0
The answer may not be what you think it is
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A triangle is drawn on a coordinate plane. Point A is at (2,6), Point B is at (4,10), and Point C is at (8,5). What is the midpo
Leno4ka [110]
Answer: The midpoint of AB should be (3,8)

Explanation: Try drawing the triangle using the information given and find the midpoint of AB then measure it

The pic is not drawn to scale but just to get an idea

7 0
4 years ago
Solve for n: y=6nx – 10<br><br><br>And how to write the final answer ​
USPshnik [31]

Answer:

y=6nx-10

y+10=6nx

y+10/6x=n

therefore, n=y+10/6x.

Step-by-step explanation:

3 0
3 years ago
Need help with this problem. ​
tigry1 [53]

Answer:

C) -\frac{47}{49}

Step-by-step explanation:

By the cos double angle formula, we know \cos(2\theta)=2\cos^2\theta-1. Substituting \cos \theta into the formula, we get

\cos(2\theta)=2(-\frac{1}{7})^2-1\\~~~~~~~~~~=\frac{2}{49}-1\\~~~~~~~~~~=\boxed{-\frac{47}{49}}.

The answer is C.

5 0
2 years ago
parallelogram ABCD has vertices A(-2,-51/2), B(-4,-51/2), C(-3,-2), and D(-1,-2). find the vertices of parallelogram A'B'C'D' af
Volgvan
On a coordinate plane, any movement up and down is on the y-axis. So if your parallelogram is moving down 2.5 units, then the y-values of each vertice will go down by 2.5:
A(-2, -8), B(-4, -8), C(-3, -4.5), D(-1, -4.5)

7 0
3 years ago
I have one more question before im done so please help and have a good day.
3241004551 [841]

Answer:

  • See below

Step-by-step explanation:

<h3>Part A</h3>

<u>Solve the equation:</u>

  • 6x² + 48x + 120 = 0
  • x² + 8x + 20 = 0
  • x² + 8x + 16 + 4 = 0
  • (x + 4)² + 4 = 0
  • (x + 4)² = - 4

The left side is positive and right side is negative so no solution

<h3>Part B</h3>

There is no intercession with the x-axis, the graph of the function is entirely above the x-axis.

It means the diver won't reach the bottom of the lake

6 0
2 years ago
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