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3 years ago

8

If x=-1 what is f(x)=

1 answer:

pashok25 [27]3 years ago

3 0

F(-1) and you are missing the function itself BTW

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Please help.........

Schach [20]

Answer: what the heck do you have to answer

Step-by-step explanation:

3 0

3 years ago

In 2016 the United States had a population of about 323 million people and was growing at 0.7 %. Use an explicit exponential mod

ElenaW [278]

Answer:

2047

Step-by-step explanation:

We are given that

Growing rate=0.7%

$\frac{dp}{dt}=\frac{0.7}{100}P$

$\int \frac{dP}{P}=0.007\int dt$

$lnP=0.007t+C$

Using the formula

$\int \frac{dx}{x}=ln x+C$

$P=e^{0.007t+C}=e^{0.007t}\cdot e^C=Ae^{0.007t}$

$e^C=A$

Initially when t=0,P=323 million

Substitute the values

$323 million=A$

$P=323e^{0.007t}$

Now, substitute P=400 million

$400=323e^{0.007t}$

$ln\frac{400}{323}=0.007t$

$ln(1.2384)=0.007t$

$t=\frac{ln(1.2384}{0.007}$

$t=30.5\approx 31 Years$

Year=2016+31=2047

Hence,In 2047 the U.S population will reach 400 million people.

5 0

3 years ago

Ill give you brainliest Gabe rents a piano for $49 per month. He earns $15 per hour giving piano lessons to students. How many h

Masteriza [31]

Answer:

25 lessons

Step-by-step explanation:

Graph the equation 15x-49 and zoom in on 326

6 0

3 years ago

Andre builds a form for a new cement step. The Form he builds is 40.5in long, 10in deep, and 8in high. How much cement is needed

pickupchik [31]

New length is 43.75 inches long

5 0

3 years ago

Read 2 more answers

Answer for brainliest<br> 25 X 1 =<br><br> ;)

Alchen [17]

The answer is 25. :))))

3 0

3 years ago