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3 years ago

How do I do all of these questions for this one? Please help :(

Mathematics

1 answer:

morpeh [17]3 years ago

6 0

Critical points: (-4,-1)

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What is the area of the shaded region? Use 3.14 for pi and round to the nearest tenth.

never [62]

Answer:

la respuesta es la B

Step-by-step explanation:

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4 years ago

A little help here lol

inysia [295]

Answer:D

Step-by-step explanation:

It’s asking for it’s opposite

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3 years ago

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A particle, initially at rest, moves along the x-axis such that its acceleration at time t > 0 is given by a(t) = 6cos(t). At

Rom4ik [11]

a. By the fundamental theorem of calculus, the velocity function is

$v(t)=v(0)+\displaystyle\int_0^ta(u)\,\mathrm du$

The particle starts at rest, so $v(0)=0$ , and we have

$v(t)=\displaystyle\int_0^t6\cos u\,\mathrm du=6\sin u\bigg|_0^t=6\sin t$

Then the position function is

$x(t)=\displaystyle x(0)+\int_0^tv(u)\,\mathrm du$

with $x(0)=6$ , so

$x(t)=6+\displaystyle\int_0^t6\sin u\,\mathrm du=6-6\cos u\bigg|_0^t=12-6\cos t$

b. The particle is at rest whenever $v(t)=0$ ; this happens for

$6\sin t=0\implies \sin t=0\implies t=n\pi$

where $n$ is any integer.

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3 years ago

Simplify (-2/3) divided by (-7/4)

Tamiku [17]

The answer would be 8/21

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3 years ago

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What is the absolute value of -15+10

Daniel [21]

Answer: 5

Step-by-step explanation: When there is more than one term inside the absolute value, we first simplify inside the absolute value.

So here, our first step is to add -15 + 10 which is -5.

So we have ║-5║.

Now remember that absolute value means <em>distance from zero</em> on a number line. Since -5 is 5 units from zero, the absolute value of -5 is 5.

So the absolute value of -15 + 10 is 5.

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4 years ago