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nata0808 [166]
3 years ago
12

What is the answer for -1/4 ÷ 7/8

Mathematics
2 answers:
Travka [436]3 years ago
7 0

Answer:

-0.28571428571

Step-by-step explanation:

marshall27 [118]3 years ago
4 0

Answer: -0.2857

Step-by-step explanation:

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PLEASE HELP ASAAAP!!!!!!!q
Studentka2010 [4]

Answer:

A:a , s:soon ,A : as,P: possible

6 0
3 years ago
A company is interested in evaluating its current inspection procedure on large shipments of identical items. The procedure is t
olchik [2.2K]

Answer:

0.91854

Step-by-step explanation:

Given that a  company is interested in evaluating its current inspection procedure on large shipments of identical items.

The procedure is to take a sample of 5 items and pass the shipment if no more than 1 item is found to be defective.

It is known that items are defective at a 10% rate overall.

If X is the number of defectives in the sample of 5, we find that X has two outcomes and each trial is independent of the other

So X is binomial with n =5, and p = 0.10

the probability that the inspection procedure will pass the shipment

= P(X\leq 1)\\ \\= (0.9)^5 + 5 (0.1)(0.9)^4\\= (0.9^4) (0.9+0.5)\\= 0.91854

7 0
3 years ago
In a year-long music course, you are required to attend 12 concerts. Last season, the lengths of the concerts were 92, 101, 98,
lianna [129]
Hello!

The five-number summary is the lowest number, highest number, median, quartile 1 and quartile 3

First you should order the numbers from least to greatest.

65, 78, 80, 90, 92, 92, 98, 101,106, 112, 116, 119

The lowest number is 65

The highest number is 119

Next you can find the median

The median is the number in the middle

The two numbers in the middle are 92 and 98

Since there are two numbers you take the average

92 + 98 = 190

190/2 = 95

The median is 95

Now we know the answer is either A or B

Next you can find the lower quartile

The lower quartile is the median of the numbers under the median

So we list all the numbers under 95

65, 78, 80, 90, 92, 92

The numbers in the middle are 80 and 90

The average between these two is 85

So the lower quartile is 85

From this we know the answer is B

The answer is B

Hope this helps!
3 0
4 years ago
Given 3x^2+x-4/x-1 what are the domain and range
Katarina [22]

Answer:

  • doman: x ≠ 1
  • range: y ≠ 7

Step-by-step explanation:

The domain is the horizontal extent of the graph, the set of x-values for which the function is defined. The range is the vertical extent of the graph, the set of y-values defined by the function.

<h3>Simplified</h3>

The given function is undefined where its denominator is zero, at x=1. Everywhere else, it can be simplified to ...

  \dfrac{3x^2+x-4}{x-1}=\dfrac{(x-1)(3x+4)}{(x-1)}=3x+4\quad x\ne 1

<h3>Domain</h3>

The simplified function (3x+4) is defined for all values of x except x=1. The simplest description is ...

  x ≠ 1

In interval notation, this is ...

  (-∞, 1) ∪ (1, ∞)

<h3>Range</h3>

The simplified function is capable of producing all values of y except the one corresponding to x=1: 3(1)+4 = 7. The simplest description is ...

  y ≠ 7

In interval notation, this is ...

  (-∞, 7) ∪ (7, ∞)

6 0
2 years ago
A golf ball, thrown upwards, rises at a speed of v metres per second.
miss Akunina [59]

Answer:

162 metres

Step-by-step explanation:

Since h is proportional to the square of v, we know that their ratio must be constant, so v_1^2/h_1 = v_2^2/h_2 where v1 and v2 are velocities and h1 and h2 are their respective heights.

Since we are given that v = 10 and h = 8, we can set v1 = 10 and h1 = 8 and since we are trying to find the height for v = 45, we can set v2 = 45. Inputting these values into the equation and solving, we get

10^2/8 = 45^2/h2

h2 = 45^2/(10^2/8) = 162 metres

I hope this helps!

4 0
2 years ago
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