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2 years ago

15

When f(x)=5x^2-2x+5, evaluate f(-3)

1 answer:

patriot [66]2 years ago

8 0

Answer:

f(-3)=56

Step-by-step explanation:

When evaluating a specific input for a function, you just plug that input in for x.

So in this case, f(-3)=5(-3)^2-2(-3)+5

f(-3)=5(-3)^2-2(-3)+5

f(-3)=5(9)+6+5

f(-3)=45+6+5

f(-3)=56

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olga_2 [115]

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Final temperature: 12-27=-15°C

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2 years ago

The Perimeter Of A Rectanglular Garden Is 84 Feet . The Length Of The Garden Is Twice The Width . What Is The Width Of The Garde

nalin [4]

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\begin{cases}
L=length\\
W=width\\
--------\\
P=84\\
L=\stackrel{\textit{twice the width}}{2W}
\end{cases}
\\\\\\
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3 years ago

The authors of a paper presented a correlation analysis to investigate the relationship between maximal lactate level x and musc

ArbitrLikvidat [17]

Answer:

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bi) test statistic, t = 4.102

bii) P-value = 0.000736

Step-by-step explanation:

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$r = \frac{S_{xy} }{\sqrt{S_{xx} S_{yy} }} }$

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r = 0.7511

b)

i) formula for the test statistic is given by the formula:

$t = \frac{r\sqrt{n-1} }{\sqrt{1 - r^{2} } }$

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ii) Degree of freedom, df = n -2

df = 14 -2

df = 12

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P-value = (=TDIST(4.1,12,1)

P-value = 0.000736

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2 years ago

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krok68 [10]

Answer:

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2 years ago

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matrenka [14]

Answer:

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4 0

2 years ago