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3 years ago

Can someone plzzzz help ?

Mathematics

1 answer:

Nadusha1986 [10]3 years ago

6 0

Answer:

1. 72

2. 20

3. 23/4

Step-by-step explanation:

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2 years ago

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Write the point slope form of the equation of the line that passes through the point (1,3) and has a slope of 2.

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Step-by-step explanation:

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3 years ago

Solve for x. 4.25x = 21.

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3 years ago

How? (2x^2 - 3x - 4)(x + 7)<br>

lidiya [134]

Answer:

$2 {x}^{3} + 11{x}^{2} - 25x - 28$

Step-by-step explanation:

Using foil method, Multiply the first term

$2 {x}^{2} \times x = 2 {x}^{3}$

Next, Multiply the Outer term in each parenthesis. (2x^2 and 7

$2 {x}^{2} \times 7 = 14 {x}^{2}$

$2 {x}^{2} \times 7 = 14 {x}^{2} \: \: \: 3x \times - x = - 3x$

Then, Multiply the Inner Terms (-3x,-4,7) in each parenthesis

$- 3x \times 7 = - 21x$

$- 4 \times x = - 4x$

Then multiply the last term (-4 and 7).

$- 4 \times 7 = - 28$

Combine it you have

$2 {x}^{3} + 14 {x}^{2} - 3 {x}^{2} - 21x - 4x - 28$

which simplify to

$2 {x}^{3} + 11 {x}^{2} - 25x - 28$

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3 years ago

What are the removable discontinuities of the following function? f (x) = startfraction x squared minus 36 over x cubed minus 36

Lyrx [107]

The removable discontinuity is at negative 6 and 6. Then the correct option is B.

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

The function is an expression, rule, or law that defines the relationship between one variable to another variable. Functions are ubiquitous in mathematics and are essential for formulating physical relationships.

The function is given as

$f\rm (x) =\rm \dfrac{x^2-36}{x^3-36x}$

The expression can be written as

$f\rm (x) =\rm \dfrac{x^2-36}{x(x^2-36)}$

$f\rm (x) = \dfrac{1}{x}$

The non-removable discontinuity is x = 0.

More about the function link is given below.

brainly.com/question/5245372

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3 years ago