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Ilia_Sergeevich [38]
3 years ago
14

Is 7.7 greater less than or equal to 7.5

Mathematics
2 answers:
crimeas [40]3 years ago
6 0
7.7 is greater than 7.5
Andreyy893 years ago
4 0
Hey there, 7.7 is greater than 7.5
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Find the derivative of f(x) equals -10 divided by X at x= -12
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Explanation:
Find the Derivate -10/x

=10/x^2

Plug in -12 for x

10/(-12)^2


=5/72
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3 years ago
What is<br> the domain of the square root function graphed below?
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Where is the graph show the graph
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3 years ago
An article on polygraph testing of FBI agents indicated that the probability of a false-positive (a trustworthy person who nonet
Alexandra [31]

Answer:

The variable x will follow a geometric distribution, with mean = 3 and standard deviation = 3.46.

The values for P(x) are:

P(0)=0.25\\\\P(1)=0.1875\\\\P(2)=0.1406\\\\P(3)=0.1055\\\\P(4)=0.0791\\\\P(5)=0.0593\\\\P(6)=0.0445\\\\P(7)=0.0334\\\\P(8)=0.025\\\\P(9)=0.0188\\\\P(10)=0.0141\\\\

Step-by-step explanation:

This kind of random variables can be descripted by the geometrical distribution.

This distribution shows the probability of having an amount of "failures" before the first "success" (or the other way).

Let x be the number of trustworthy FBI agents tested until someone fails the test. The probability of failing a test is p=0.25

Then, the probability of x is:

P(x)=q^x\cdot p

The values for the first x are:

P(0)=0.75^0\cdot 0.25=0.25\\\\P(1)=0.75^1\cdot 0.25=0.1875\\\\P(2)=0.75^2\cdot 0.25=0.1406\\\\P(3)=0.75^3\cdot 0.25=0.1055\\\\P(4)=0.75^4\cdot 0.25=0.0791\\\\P(5)=0.75^5\cdot 0.25=0.0593\\\\P(6)=0.75^6\cdot 0.25=0.0445\\\\P(7)=0.75^7\cdot 0.25=0.0334\\\\P(8)=0.75^8\cdot 0.25=0.025\\\\P(9)=0.75^9\cdot 0.25=0.0188\\\\P(10)=0.75^{10}\cdot 0.25=0.0141\\\\

This probability will be descending as the the variable x increases.

The mean is:

\mu=\frac{1-p}{p}= \frac{1-0.25}{0.25}=\frac{0.75}{0.25}=3

The standard deviation is:

\sigma=\sqrt{\frac{1-p}{p^2}} =\sqrt{ \frac{0.75}{0.25^2} }=\sqrt{12}= 3.46

5 0
3 years ago
Evelyn wants to buy a dictionary that costs $9, a dinosaur book that costs $18, and a children's cookbook that costs $12. She ha
melamori03 [73]

Answer:

First, you have to add 9, 18, and 12. When we add this we get 39. She has 30 dollars, do we can see that she needs $9 more to get all three books.

Step-by-step explanation:

6 0
3 years ago
Teresa's restaurant bill comes to $29.99 before tax. If the sales
vivado [14]
The answer is $37.86 !! hope this helps
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3 years ago
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