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2 years ago

The polynomial x3+8 is equal too (x+2)(x2-2x+4

2 answers:

8 0

For starters: Please practice presenting polynomial expressions properly.

x3+8 is equal too (x+2)(x2-2x+4

should be written as "x^3 + 8 is equal to (not too) (x+2)(x^2 - 2x + 4).

You don't share the instructions. I suspect you are to respond "true" or "false."

It happens that x^3 + 8 equals x^3 + 2^3, which is the sum of two cubes.

There is a formula for the "sum of two cubes:"

It is a^3+b^3 = (a^2 - ab + b^2)(a+b).

Therefore, x^3 + 2^3 = (x+2)(x^2 -2x + 2^2), or (x+2)(x^2 - 2x + 4).

swat322 years ago

3 0

This is the sum of cubes which factors to:

(x+2)(x^2-2x+4)

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12 men can plant the paddy in a rupandehi of field in 10 hours how many men are required to plan the same in 6 hours only

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12 men can plant paddy in 10 hours

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2 years ago

Is this right? and if so. how

Murrr4er [49]

You answer is correct. For example

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2 years ago

Just 16 not the words below

alekssr [168]

Answer:

Table F

Step-by-step explanation:

The equation is C = 0.75t. The variable c is for cost and t is for tickets. When we use substitution to solve the equation, we see that table F correctly represents the situation. In simpler terms, the equation is asking us to mutliply the cost PER ticket by the number of tickets.

0.75 * 1 = 0.75

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Hope this helps!

8 0

2 years ago

A math class is having a discussion on how to determine if the expressions 4 x minus x + 5 and 8 minus 3 x minus 3 are equivalen

Brut [27]

Answer:

Both expressions should be evaluated with two different values. If for each substituted value, the final values of the expressions are the same, then the two expressions must be equivalent.

Step-by-step explanation:

Given expressions

4x - x + 5 = 3x + 5
8 - 3x - 3 = -3x + 5

Compared, we see the expressions are different as 3x and -3x have different coefficient

Answer options

Both expressions should be evaluated with one value. If the final values of the expressions are both positive, then the two expressions must be equivalent.

Incorrect. Positive outcome doesn't mean equivalent

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Both expressions should be evaluated with one value. If the final values of the expressions are the same, then the two expressions must be equivalent.

Incorrect. There are 2 values- variable and constant

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Both expressions should be evaluated with two different values. If for each substituted value, the final values of the expressions are positive, then the two expressions must be equivalent.

Incorrect. Positive outcome doesn't mean equivalent.

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Both expressions should be evaluated with two different values. If for each substituted value, the final values of the expressions are the same, then the two expressions must be equivalent.

Correct.

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2 years ago

Segment AB is completely rotated about the y-axis to form a 3-D figure. Find the volume of the figure. The

Lady bird [3.3K]

Answer:

The volume of the figure is 905 cubic units.

Step-by-step explanation:

Rotation is a method of solid transformation which involve turning a given line, or object about a reference point. In the given question, rotating segment AB completely about the y-axis would form a 3 dimensional figure of a sphere.

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