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2 years ago

Find the value of f(-8).

Mathematics

2 answers:

yawa3891 [41]2 years ago

7 0

Answer:

My answer would be -2

Step-by-step explanation:

Please give me brainliest

Norma-Jean [14]2 years ago

6 0

<h3>Answer: -2</h3>

Explanation:

Check out the diagram below. I started at -8 on the x axis number line. This number line is horizontal. Then I went straight down to arrive at the function curve. Afterward, I went directly to the right to get to the y axis. The final destination is y = -2

Therefore, f(-8) = -2

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3 years ago

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4 years ago

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3 years ago

You are interested in purchasing a new car. One of the many points you wish to consider is the resale value of the car after 5 y

gulaghasi [49]

Answer:

The 95% confidence interval for the true mean resale value of a 5-year-old car of this model

(11,688.68 , 12,511.32)

Step-by-step explanation:

Step(i):-

Given sample size 'n' = 17

mean of the sample x⁻ = 12,100

Standard deviation of the sample (S) = 800

The 95% confidence interval for the true mean resale value of a 5-year-old car of this model

$(x^{-} - t_{0.05} \frac{S}{\sqrt{n} } , x^{-} + t_{0.05} \frac{S}{\sqrt{n} } )$

Step(ii):-

Degrees of freedom ν =n-1 = 17-1 =16

$t_{(16 , 0.05)} = 2.1199$

The 95% confidence interval for the true mean resale value of a 5-year-old car of this model

$(x^{-} - t_{0.05} \frac{S}{\sqrt{n} } , x^{-} + t_{0.05} \frac{S}{\sqrt{n} } )$

$(12,100 - 2.1199\frac{800}{\sqrt{17} } , 12,100 + 2.1199 \frac{800}{\sqrt{17} } )$

(12,100 - 411.32 , 12,100 + 411.32)

(11,688.68 , 12,511.32)

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3 years ago