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harkovskaia [24]

2 years ago

9

Can someone help with these problems thanks

1 answer:

timofeeve [1]2 years ago

7 0

Answer:

a. 5 cm

b. 5.2 cm

c. 3.25 in.

d. 2.5 in.

Step-by-step explanation:

Can I pretty please get Brainliest it would help out alot =)

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0.0000981 in scientific notation

Pachacha [2.7K]

9.81 times 10 to the -5th power

4 0

3 years ago

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A polynomial is to be constructed that will touch the x axis at most 5 times. What is the minimum degree of the polynomial?

bonufazy [111]

Touch the x axis means the zeroes (y=0) of theh equation aka the roots aka the solutions
ok, so remember that the degree of the polynomial will be the maximum number of roots so therefor
minimum degreee is 5th degree

8 0

2 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

Please help! <br>i do not understand my homework!<br>

Verizon [17]

Answer:

I believe the answer is A.

8 0

3 years ago

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Help please!!!! Asap!! math whizzes!!!

Katyanochek1 [597]

Answer:

$5xy^3 \sqrt{3x}$

Step-by-step explanation:

The radical $\sqrt{75x^3y^6}$ can be simplified by breaking it down into factors and removing the perfect squares from inside the radical.

$\sqrt{75x^3y^6} =\sqrt{3*25*x^2*x*y^6} =5xy^3 \sqrt{3x}$

25 is a perfect square and is 5 outside the radical.

$x^2$ is a perfect square and is x outside the radical.

$y^6$ is a perfect square and is $y^3$ outside the radical.

7 0

2 years ago