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GenaCL600 [577]
3 years ago
10

Simplify: (3x – 1) (x3 + 2x + 1)

Mathematics
2 answers:
Naddik [55]3 years ago
7 0

Answer:

3x^4-x^3+6x^2+x-1

Step-by-step explanation:

Distribute parentheses:

3xx^3 + 3x * 2x + 3x * 1 + (-1)x^3 + (-1) * 2x + (-1) * 1

Add minus and plus rules:

3x^3x + 3 * 2xx + 3 * 1 * x - 1 * x^3 - 1 * 2x - 1 * 1

Simplify:

3x^4-x^3+6x^2+x-1

pshichka [43]3 years ago
5 0

Answer:

B: 3x4-x3+6x2+x-1

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Answer:

1  1/4

Step-by-step explanation:

3 1/8 - 1 7/8

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Simplify the fraction by dividing by 2 on the top and bottom

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6 0
3 years ago
If x=3, Solve, -3x +4 *
eduard

Answer:

-5

Step-by-step explanation:

3x -3 = -9 + 4 = -5

3 0
3 years ago
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Circle A has an area of 452.16 ft^2 with a radius of 12 ft. If circle B has a radius of 17 ft, what is its area?
Dmitry [639]
To find this answer, you would need to use the equation for area of a circle, or in this case, a=3.14x289, since 3.14 is pi and 289 is your radius squared. giving you a final answer of 907.46 feet squared.
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3 years ago
A 12 foot ladder is leaning up against the side of a house the ladder makes an angle of 62° with the ground. How far up the side
Veseljchak [2.6K]

Answer:

Step-by-step explanation:

The ladder forms a right angle triangle with the house and the ground. The length of the ladder represents the hypotenuse of the right angle triangle. The height, h from the top of the ladder to the base of the house represents the opposite side of the right angle triangle.

The distance from the bottom of the ladder to the base of the house represents the adjacent side of the right angle triangle.

To determine the height, h that the ladder reaches, we would apply

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Sin θ = opposite side/hypotenuse. Therefore,

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4 0
3 years ago
The area of the shaded part of the figure below can be determined in different ways. Use
lesantik [10]

The figure can be decomposed into four rectangles of the figure can be decomposed into four trapezoids with a height of 3 in. and a base of 2 in. and 5 in. The area of the shaded region is 21 square in.

<h3>What is a rectangle?</h3>

It is a polygon that has four sides. The sum of the internal angle is 360 degrees. In a rectangle, opposite sides are parallel and equal and each angle is 90 degrees. And its diagonals are also equal and intersect at the mid-point.

The area of the shaded part of the figure below can be determined in different ways.

Then the figure can be decomposed into four rectangles of the figure can be decomposed into four trapezoids with a height of 3 in. and a base of 2 in. and 5 in.

Then the area of the shaded region will be

\rm Shaded \ area = 5^2 -  2^2\\\\Shaded \ area = 25 - 4\\\\Shaded \ area = 21

More about the rectangle link is given below.

brainly.com/question/10046743

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2 years ago
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