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iragen [17]
3 years ago
14

Can I get some help and a walk through on this

Mathematics
1 answer:
Ronch [10]3 years ago
4 0

Answer:

a) -4/3

b) 8

c) -2/3

d) 2

Step-by-step explanation:

In all four cases replace the value of "x" in the function's expression, and evaluate to find the numerical answer:

a) f(\frac{1}{4}) = \frac{1}{\frac{1}{4}-1 } =\frac{1}{\frac{1}{4}-\frac{4}{4}  }= \frac{1}{-\frac{3}{4} } = -\frac{4}{3}

b) g(\frac{1}{4} ) = \frac{1}{\frac{1}{4} } +4 = 4 + 4 = 8

c) f(-\frac{1}{2}) = \frac{1}{-\frac{1}{2}-1 } =\frac{1}{-\frac{1}{2}-\frac{2}{2}  }= \frac{1}{-\frac{3}{2} } = -\frac{2}{3}

d) g(-\frac{1}{2} ) = \frac{1}{-\frac{1}{2} } +4 = -2 + 4 = 2

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evablogger [386]

Answer:

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Step-by-step explanation:

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7 0
2 years ago
According to records from 50 years, there is a 2/3 chance of June temperatures being above 80 F. Azul needs to find the probabil
Brrunno [24]

Record of june temperature of last 50 years

Probability of June temperature being above 80° F from last 50 years

                      =\frac{2}{3}

It means , out of 30 days ,there are  only 20 days , in which temperature is above 80°F.

⇒Probability that it will be above 80° F for 20 or more days this June

                =\frac{20+x}{30}  

where, x is the number of extra days after 20 days in month of june, when temperature is above 80°F.

Value of this Probability will be in between

                \frac{2}{3}\leq P \leq 1  

Now, what Azul wants

 To find the probability that it will be above 80° F for 20 or more days this June.

The Simulation given is

  ⇒There are 30 days in June. If we use a number cube with the numbers 1-6 and assign 1-4 as a temperature above 80° F and 5-6 as a temperature 80° F or below.

Total number of numbers on number cube ={1,2,3,4,5,6}

Favorable Outcome={1,2,3,4}=Temperature above 80° F

Temperature 80° F or below ={5,6}

⇒Probability of getting number {1,2,3,4} on the number cube when rolled once,that is Temperature above 80° F

        =\frac{4}{6}\\\\=\frac{2}{3}

⇒Probability of getting number {5,6} on the number cube when rolled once, that is Temperature 80° F or below

        =\frac{2}{6}\\\\=\frac{1}{3}

This is Incorrect Simulation, as there are chances that , there can be more than 20 days out of 30 days when Temperature goes above 80° F.But Here we have got Probability of temperature being above 80° F for 20 days only, not more than 20 days, which is =\frac{2}{3}

Not,a number

    \frac{2}{3}< \text{Probability} \leq 1.    

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4 years ago
Write an equation in slope-intercept form with a
lora16 [44]
Your equation would be:
D. y = 10x + 6
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4 years ago
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Answer:

A B and D

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4 0
3 years ago
Read 2 more answers
Help it's due tomorrow!!!!
zepelin [54]
8a^2 + 3a^2

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since both have a^2 you only have to add the coefficients 
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