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Arisa [49]
3 years ago
9

PLZ HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
jekas [21]3 years ago
5 0

Answer:

x^3 - 4x^2 - 11x - 6

Step-by-step explanation:

Hope I helped :)!!

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drug sniffing dogs must be 95% accurate in their responses because their handlers don't want them to miss durgs and also don't w
GenaCL600 [577]

Answer:

95% Confidence interval:  (0.8449,0.9951)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 50

Number of times the dog is right, x = 46

\hat{p} = \dfrac{x}{n} = \dfrac{46}{50} = 0.92

95% Confidence interval:

\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

Putting the values, we get:

0.92 \pm 1.96(\sqrt{\dfrac{0.92(1-0.92)}{50}})\\\\ = 0.92\pm 0.0751\\\\=(0.8449,0.9951)

(0.8449,0.9951) is the required 95% confidence interval for the proportion of times the dog will be correct.

7 0
2 years ago
Help its due tmmr and i dont under stand
const2013 [10]

If we want rice per person, that's

\dfrac{25}{3}

1a. Answer: 25/3

That's between 24/3 and 27/3 i.e. between

1b. Answer: 8 and 9


6 0
3 years ago
Read 2 more answers
Christy and Becky went apple picking.Christy picked 1/4 the amount of apples that Becky picked.If Becky picked 124 apples.how ma
Stels [109]

Answer:

31

Step-by-step explanation:

1/4 of 124, ¨of¨¨ represents multiplication

so 1/4*124=124/4

which 124 divided by 4 equals 31

5 0
3 years ago
Find the height of a square pyramid that has a volume of 75 cubic feet and a base length of 5 feet.
Rudiy27

Answer:

9 ft

Step-by-step explanation:

Let's begin with the formula for the volume of a square pyramid.  If s is the base length, then the area of the base is s^2.  The volume of the pyramid is then V = (1/3)(base area)(height).  We know the volume and the base length (s), and want to find the height.  Solving V = (1/3)(base area)(height)

for height, we get:

3V = (base area)(height), or

    3V

---------------- = height

base area

Substituting 75 ft^3 for V and (5 ft)^2 for base area, we get:

               3(75 ft^3)              9 ft

height = ------------------ = ----------------- = 9 ft

                 25 ft^2                   1

3 0
3 years ago
Which fraction is 16/40 in lowest terms
yawa3891 [41]
2/5 I believe. Correct me if I am wrong
6 0
3 years ago
Read 2 more answers
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