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igor_vitrenko [27]
3 years ago
12

Evaluate ƒ(x ) = x 2 + 1 for ƒ(-1). Can someone explain how you figure this?

Mathematics
1 answer:
Nastasia [14]3 years ago
8 0

if f(-1) substitute that into the equation.

f(-1) = (-1)2 +1

-1 = -1

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Please answer this correctly
elena-s [515]

Answer:

30

Step-by-step explanation:

If these two shapes are similar, then ratios of corresponding sides will stay constant. Therefore:

\dfrac{g}{45}=\dfrac{50}{75}

Multiply both sides by 45:

g=\dfrac{50\cdot 45}{75}=30

Hope this helps!

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Step-by-step explanation:

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Read 2 more answers
The American Academy of Periodontology released a survey, revealing that 27% of US adults admit they lie to their dentist about
Y_Kistochka [10]

Answer:

A: H0: p = 0.27; Ha: p > 0.27

Step-by-step explanation:

The parameter is the population proportion.

According to the survey conducted by the American Academy of Periodontology, the proportion of of US adults who admit they lie to their dentist about how often they floss their teeth is 27%.

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Question 3 Unsaved
bazaltina [42]

Answer:

Step-by-step explanation:

DE given is

y''+8y'+15y=0, y(0)=0, y'(0)=1

Take Laplace on the DE

We get

s^2 Y(s) -sY(0) -y'(0)+8(sY(s)-y(0))+15Y(s) =0\\s^2 Y(s) -s(0) -1+8(sY(s)-0)+15Y(s) =0\\Y(s)(s^2+8s+15)-1=0\\Y(s) = \frac{1}{s^2+8s+15}

Simplify to get

Y(s) = \frac{1}{2}[ {\frac{1}{s+3} -\frac{1}{s+5} }]

Take inverse

y(t) = \frac{e^{-3t} -e^{-5t}}{2}

8 0
3 years ago
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