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Oxana [17]
3 years ago
14

Solve (2x3-5x2+8)(x+3)

Mathematics
2 answers:
neonofarm [45]3 years ago
8 0

Answer:

(2 {x}^{3}  - 5 {x}^{2}  + 8)(x + 3) \\  = (2 {x}^{4}  - 5 {x}^{3}  + 8x + 6 {x}^{3}  - 15 {x}^{2}  + 24) \\  = 2 {x}^{4}  +  {x}^{3}  - 15 {x}^{2}  + 8x + 24

tangare [24]3 years ago
6 0

Answer:

2x^{4} + x^{3} - 15x^{2} + 8x + 24

Step-by-step explanation:

Mark as Brainllest

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I think the answer is x = -4.
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Marc wants to guess how many marbles are in a box that has a height of 18 inches. He calculates that there are 32 marbles in a h
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So every 5 inches in height, there are 32 marbles. You want to know how many marbles there are per 18 inches in height.

\frac{32}{5} = \frac{x}{18}

To get from 5 to 18, you multiply by 3.6.

Do the same thing to the numerator; 32 × 3.6 = 115.2.

Since 0.2 marbles is no marbles, you round down.

There are 115 marbles in the box.

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3 years ago
Is sin(x) even or odd ? prove with examples ?
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Answer:

\text{sin}(x) is an odd function.

Step-by-step explanation:

We are asked to prove whether \text{sin}(x) is even or odd.

We know that a function f(x) is even if f(x)=f(-x) and a function f(x) is odd, when f(-x)=-f(x).

We also know that an even function is symmetric with respect to y-axis and an odd function is symmetric about the origin.

Upon looking at our attachment, we can see that \text{sin}(x) is symmetric with respect to origin, therefore, \text{sin}(x) is an odd function.

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What is the rate of A, what is the rate of B, which equation has a greater rate?
11Alexandr11 [23.1K]

Answer: Rate of A: 5/6

Rate of B: 3/5

A has a higher rate of change

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Question 12 (1 point)
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<h3>Answer:   5</h3>

=================================================

Explanation:

Let's consider the expression (x-y)^2. It expands out to x^2-2xy+y^2. The terms are:

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Each of those terms either has a single variable with an exponent of 2, or has the exponents add to 2. Think of 2xy as 2x^1y^1.

In short, this means that the degree of each monomial term is 2.

----------

Now consider (x-y)^3. It expands out into x^3-3x^2y+3xy^2+y^3.

We have terms that either have a single variable and the exponent is 3, or the exponents add to 3. The degree of each term is 3.

----------

This pattern continues.

In general, for (x-y)^n, where n is any positive whole number, the degree of each term in the expansion is n. If you picked any term, added the exponents, then the exponents will add to n.

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