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3 years ago

What is f(4) if f(x)=3x+2

Mathematics

1 answer:

Mademuasel [1]3 years ago

6 0

Answer:

f(4) = 14

Step-by-step explanation:

To evaluate f(4), substitute x = 4 into f(x), that is

f(4) = 3(4) + 2 = 12 + 2 = 14

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RideAnS [48]

Answer:

m=6

Step-by-step explanation:

-3m+4m=6

m=6

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3 years ago

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In a study of automobile collision insurance costs, a random sample of n = 35 repair costs of front-end damage caused by hitting

laiz [17]

Answer: The maximum error = $105.76.

Step-by-step explanation:

Formula to find the maximum error:

$E= z^*\dfrac{\sigma}{\sqrt{n}}$

, where n= sample size.

$\sigma$ = Population standard deviation

z*= Critical value(two-tailed).

As per given , we have

$\overline{x}=1438$

n= 35

$\sigma=269$

For 98% confidence , the significance level = $1-0.98=0.02$

By z-table , the critical value (two -tailed) = $z^* = z_{\alpha/2}=z_{0.01}=2.326$

Now , the maximum error = $E= (2.326)\dfrac{269}{\sqrt{35}}$

$E= (2.326)\dfrac{269}{5.9160797831}$

$E= (2.326)\times45.4692989044=105.761589252\pprox105.76$

Hence, With 98% confidence level , the maximum error = $105.76.

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3 years ago

A line is reflected. Which of these could be the result? Pls help

Arte-miy333 [17]

Answer:

Step-by-step explanation:

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2 years ago

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Which graph represents vaiable values for y= 5.5 where is x the number of cans of tomato paste and y is the total weigh of the s

kolezko [41]

Answer:

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Step-by-step explanation:

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3 years ago

In the figure above AB = 4x + 6 and BC = 7x + 15. If AC = 120, find the length of segment AB.

Mrac [35]

Answer:

x = 9

Step-by-step explanation:

AB = 4x + 6 and BC = 7x + 15 AC is the sum of AB and BC

so 4x + 6 + 7x + 15 = 120 add like terms

11x + 21 = 120 subtract 21 from both sides

11x = 99 divide both sides by 11

x = 9

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3 years ago