2 years ago

In how many ways can you arrange the books A, B, C, and D on a bookshelf if books A and C must remain neighboring?

Mathematics

1 answer:

e-lub [12.9K]2 years ago

5 0

I believe the answer is 4

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Solve and show work (4-9)(-6)-1)

Dmitry_Shevchenko [17]

The answer is 29.
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2 years ago

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What is the value of 2c + d² - 3e + 4f when c = 3, d = 5, e = 6, and f = 1?

Andrej [43]

Answer:

Step-by-step explanation:

2c + d^3 - 3e +4f

=2(3) + (5^2) - 3(6) + 4(1)

=6+25-18+4

=17

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3 years ago

Determine whether each integral is convergent or divergent. If it is convergent evaluate it. (a) integral from 1^(infinity) e^(-

AVprozaik [17]

Answer:

a) So, this integral is convergent.

b) So, this integral is divergent.

c) So, this integral is divergent.

Step-by-step explanation:

We calculate the next integrals:

$\int_1^{\infty} e^{-2x} dx=\left[-\frac{e^{-2x}}{2}\right]_1^{\infty}\\\\\int_1^{\infty} e^{-2x} dx=-\frac{e^{-\infty}}{2}+\frac{e^{-2}}{2}\\\\\int_1^{\infty} e^{-2x} dx=\frac{e^{-2}}{2}\\$

So, this integral is convergent.

$\int_1^{2}\frac{dz}{(z-1)^2}=\left[-\frac{1}{z-1}\right]_1^2\\\\\int_1^{2}\frac{dz}{(z-1)^2}=-\frac{1}{1-1}+\frac{1}{2-1}\\\\\int_1^{2}\frac{dz}{(z-1)^2}=-\infty\\$

So, this integral is divergent.

$\int_1^{\infty} \frac{dx}{\sqrt{x}}=\left[2\sqrt{x}\right]_1^{\infty}\\\\\int_1^{\infty} \frac{dx}{\sqrt{x}}=2\sqrt{\infty}-2\sqrt{1}\\\\\int_1^{\infty} \frac{dx}{\sqrt{x}}=\infty\\$

So, this integral is divergent.

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3 years ago

A line with a slope of 1/2 passes through the point (2, -1) what is the Equation of the line

Sonja [21]

Answer:

y=1/2x-2

Step-by-step explanation:

Hope this helps!

5 0

2 years ago

Will mark brainliest! Answer quickly please.

inn [45]

1400kg.
Force=ma
2100N= m*1.5
2100/1.5= 1400kg.
Please mark me brainliest :)

3 0

2 years ago