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3 years ago

Find the product. (x2 + 3x - 2)(x + 3) A. x3 + 6x2 + 7x - 6 B. x2 + 4x + 1 C. x3 + 3x2 + 1 D. x3 + 6x2 + 11x + 6

Mathematics

1 answer:

marta [7]3 years ago

8 0

Answer:

Step-by-step explanation:

x^3 + 3x^2 - 2x + 3x^2 + 9x - 6

x^3 + 6x^2 + 7x - 6

the solution is A

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Please help me out ASAP

Nady [450]

Answer:

the answer is b

Step-by-step explanation:

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3 years ago

Point B is the center of the circle shown, and the length of arc AC is 8π. What is the area of the circle?

Gwar [14]

Answer:

$A=324\pi \text{ units}^2\approx1017.88\text{ units}^2$

Step-by-step explanation:

The formula for arc length is:

$\stackrel{\frown}{A}=2\pi r(\frac{\theta}{360}})$

Where Θ is measured in degrees.

We know that the arc length is 8π when the degree is 80. So, substitute 8π for A and 80 for Θ:

$8\pi=2\pi r(\frac{80}{360})$

Divide both sides by 2π:

$4=r\frac{80}{360}$

Simplify the fraction:

$4=\frac{2}{9}r$

Multiply both sides by 9/2:

$r=18$

So, the radius is 18.

Now, we can find the area of the circle. The formula for the area of a circle is:

$A=\pi r^2$

Substitute 18 into r:

$A=\pi (18)^2$

Simplify:

$A=324\pi \text{ units}^2\approx1017.88\text{ units}^2$

And we're done!

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3 years ago

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What is the mode of this data set? 9,14,18,9,12,14,6,6,2,8

Yuri [45]

The mode is the value that appears more often in a dataset. In your dataset, you have two 6's, two 9's and two 14's.

So, there is no value that is repeated more than any other.

In those cases, some say that your dataset has no mode. Others say that your dataset has three modes: 6, 9 and 14.

It's really all about definition, so it depends on which convention your book/course/professor sticks to.

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3 years ago

AMIGOS NECESITO QUE PORFAVOR ME AYUDEN CON ESTOS TRES PUNTOSS

sergiy2304 [10]

Answer:

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Step-by-step explanation:

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3 years ago

Fay travels 56 kilometers in 8 hours.How many kilometers will she travel in a day?

Nookie1986 [14]

There are 24 hours in a day. 8 hours x 3 = 24 hours.

56 kilometres x 3 = 168 kilometres

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If Fay continues to travel at this current speed without stopping, she will end up travelling a distance of 168 kilometres in a day.

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3 years ago

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