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3 years ago

Given f(x)=7x - 6 and g(x)=3x, what is f(3) - g(2)?

Mathematics

1 answer:

tino4ka555 [31]3 years ago

8 0

Answer:

f(3) - g(2) = 9

Step-by-step explanation:

f(x) - g(x)

f(x) = 7x - 6

g(x) = 3x

7x - 6 - 3x

f(3) - g(2)

7(3) - 6 - 3(2)

21 - 6 - 6 = 15 - 6 = 9

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Let f(x) = 3x2 + x − 3 and g(x) = x2 − 5x + 1. Find f(x) − g(x).

scZoUnD [109]

<h3>Answer: 2x^2 + 6x - 4</h3>

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Work Shown:

f(x) - g(x) = [ f(x) ] - [ g(x) ]

f(x) - g(x) = ( 3x^2+x-3) - ( x^2-5x+1 )

f(x) - g(x) = 3x^2+x-3 - x^2+5x-1

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3 years ago

Simplify the expression by combining like terms<br> 2v + 6 + 4v + 8 + v

harkovskaia [24]

7v + 14

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7v + 14

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3 years ago

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insurance company checks police records on 559 accidents selected at random and notes that teenagers were at the wheel in 91 of

ss7ja [257]

Answer: $(13.22\%,\ 19.34\%)$

Step-by-step explanation:

Given : Sample space : n= 559

Sample proportion : $\hat{p}=\dfrac{91}{559}=0.162790697674\approx0.1628$

$=16.28\%$

Significance level : $\alpha= 1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

Confidence level for population proportion:-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.1628\pm (1.96)\sqrt{\dfrac{0.1628(1-0.1628)}{559}}\\\\=0.1628\pm0.030604971367\\\\\approx 0.1628\pm0.0306=(0.1322,\ 0.1934)=(13.22\%,\ 19.34\%)$

Hence, 95% confidence interval for the percentage of all auto accidents that involve teenage drivers.= $(13.22\%,\ 19.34\%)$

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3 years ago

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Lubov Fominskaja [6]

Answer:

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3 years ago

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