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sladkih [1.3K]
2 years ago
9

An oil company estimates that only 1 well in 20 will yield commercial quantities of oil. Assume that successful drilled wells re

present independent events. If 5 wells are drilled, find the probability of obtaining a commercially successful well for the following number of times. (Round your answer to six decimal places.) exactly 1
Mathematics
1 answer:
Fudgin [204]2 years ago
5 0
An oil drilling company ventures into various lo- cations, and its success or failure is independent from one location to another. Suppose the probability of a success at any specific location is
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What is the 4 math methods
erastovalidia [21]
The Four basic Mathematical Operations are:
•Addition
•Subtraction
•Multiplication
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5 0
3 years ago
Which line is parallel to the line<br> shown below?
Travka [436]
<h3>Answer:  Choice D</h3>

4x - 3y = 15

====================================================

Explanation:

The two points (-1,-1) and (2,3) are marked on the line

Let's find the slope of the line through those two points.

(x_1,y_1) = (-1,-1) \text{ and } (x_2,y_2)  = (2,3)\\\\m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}\\\\m = \frac{3 - (-1)}{2 - (-1)}\\\\m = \frac{3 + 1}{2 + 1}\\\\m = \frac{4}{3}\\\\

The slope is 4/3 meaning we go up 4 and to the right 3.

-------------

Parallel lines have equal slopes, but different y intercepts. We'll need to see which of the four answer choices have a slope of 4/3.

Solve the equation in choice A for y. The goal is to get it into y = mx+b form so we can determine the slope m.

3x + 4y = -4\\\\4y = -3x-4\\\\y = -\frac{3}{4}x-\frac{4}{4}\\\\y = -\frac{3}{4}x-1

Equation A has a slope of -3/4 and not 4/3 like we want.

Therefore, this answer choice is crossed off the list.

Follow similar steps for choices B through D. I'll show the slopes of each so you can check your work.

  • slope of equation B is 3/4
  • slope of equation C is -4/3
  • slope of equation D is 4/3

We have a match with equation D. Therefore, the equation 4x-3y = 15 is parallel to the given line shown in the graph.

You can use graphing tools like Desmos or GeoGebra to confirm the answer.

4 0
10 months ago
Ken predicts that the average temperature will be −5°C in December. If he predicts the temperature will rise 6°C in January and
ipn [44]

Answer:

The equations [(-5) + (-3)] + 6 = -2 and [6 + (-5)] + (-3) = -2  he can use to find the sum of the temperatures for those months ⇒ 3rd , 5th

Step-by-step explanation:

i took the assignment

7 0
3 years ago
What is the midpoint of LQ? <br> Point M <br> Point N<br> Point P<br> Point Q
Sphinxa [80]

Answer:

N

Step-by-step explanation:

N is the only point that is equally distant from point L and point Q

5 0
2 years ago
Read 2 more answers
Can someone put true or false? Please make sure you answer is correct and label them like this:
uysha [10]
1. true.
2. false.
3. false.
4. true.

these should be correct.
4 0
2 years ago
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