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andrey2020 [161]
4 years ago
8

Need help with function

Mathematics
2 answers:
bazaltina [42]4 years ago
8 0
The answer is B, according to the Rules / Laws of Functions.
IRISSAK [1]4 years ago
8 0
B is a function because it is the only one that has 4 different x values, therefore passing the vertical line test.
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Given: f(x) = x + 2 and g(x) = 3x + 5 <br> f (x)/g (x) =
evablogger [386]

For this case we have two functions of the form y = f (x). We must find the quotient of the following functions:

f (x) = x + 2\\g (x) = 3x + 5

So, we have by definition:

\frac {f (x)} {g (x)} = \frac {x + 2} {3x + 5}

Answer:

\frac {f (x)} {g (x)} = \frac {x + 2} {3x + 5}

with 3x + 5 different from zero, so that the function is defined

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4 years ago
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3 years ago
Space shuttle Challengerexploded because of O-ring failure shortly after it was launched. O-ring damage and temperature at time
arlik [135]

Answer:

The mean launch temperature for flights with O-ring damage is significantly lesser than Flights with No O-ring

Step-by-step explanation:

Let

Null hypothesis : H0 : μ1 ≥ μ2

Alternate hypothesis : Ha : μ1 < μ2

next calculate the test statistic

t = -2.312

calculate the P-value

p-value = T.DIST ( t ,df )  (  excel function )

            = 0.0270

Given that P-value ( 0.020 ) < level of significance ( 0.05 ) we will not fail to reject the null hypothesis

Attached below is the detailed solution

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3 years ago
A veterinarian studying causes of enteroliths in horses suspects feeding too much alfalfa may be a culprit. The veterinarian hyp
Hatshy [7]

Answer: 0.022

Step-by-step explanation:

Let p be the population proportion of horses were fed mostly alfalfa.

We are given that :

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Also, we have

Sample size= 62

Sample proportion= \hat{p}=\dfrac{49}{62}\approx0.79

Test statistic for population proportion:-

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

Substitute all values ,

z=\dfrac{0.79-0.67}{\sqrt{\dfrac{0.67(1-0.67)}{62}}}\\\\=\dfrac{0.12}{\sqrt{0.00356612903226}}\\\\=\dfrac{0.12}{0.059717}\\\\=2.00947551836\approx2.01

P-value for right tailed test :

P(z>2.01)=1-P(z<2.01)              [∵P(Z>z=1-P(Z<z))]

=1-0.9777844                     [By using z-value table]

=0.0222156≈0.022

Hence, the P-value for this test is <u>0.022</u> .

5 0
3 years ago
Dividing 5 rolls of ribbon equally among 6 friends representing 5\6. How much ribbon dose each person receive? Enter the answer
slava [35]

Answer:

Each friend will receive \frac{5}{6} rolls of ribbon.

Step-by-step explanation:

We are asked to divide 5 rolls of ribbon equally among 6 friends and determine the amount of ribbon received by each person.

To find the amount of ribbon received by each person, we will divide total amount of ribbon by 6 as:

\text{Rolls of ribbon received by each person}=\frac{5\text{ Rolls}}{\text{ 6 persons}}

\text{Rolls of ribbon received by each person}=\frac{5}{6}\frac{\text{Rolls}}{\text{ persons}}

Therefore, each friend will receive \frac{5}{6} rolls of ribbon.

5 0
3 years ago
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