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2 years ago

How would x^3+8 be expressed in factored form

Mathematics

2 answers:

MA_775_DIABLO [31]2 years ago

5 0

(x + 2) • (x^2 -2x + 4)

Ket [755]2 years ago

4 0

$\it x^3+8=x^3+2^3=(x+2)(x^2-2x+4)\\ \\ \\ a^3+b^3=(a+b)(a^2-ab+b^2)$

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Are the two ratios that make up a proportion<br> always, sometimes, or never equivalent

masya89 [10]

Answer:

Always

Step-by-step explanation:

In mathematics, when we say that two ratios form a proportion, we mean that the two ratios are equal.

Ex: Ratios and Proportions - Proportions - In Depth. A proportion is simply a statement that two ratios are equal. It can be written in two ways: as two equal fractions a/b = c/d; or using a colon, a:b = c:d. The following proportion is read as "twenty is to twenty-five as four is to five."

A proportion is two ratios which have been set equal to each other; a proportion is an equation that can be solved. When I say that a proportion is two ratios that are equal to each other, I mean this in the sense of two fractions being equal to each other. For instance, 105 equals 21 .

8 0

2 years ago

What is the temperature increase in degrees Fahrenheit that is equivalent to a temperature increase of 10 degrees Celsius?

bogdanovich [222]

Answer:

18 degrees Fahrenheit

Step-by-step explanation:

7 0

3 years ago

The perimeter of the rectangle is 2,500 cm. Find the unknown side length. the other side is 750

sineoko [7]

Answer:

Step-by-step explanation:

Perimeter of a rectangle = 2l + 2w

where

l is the length

w is the width

From the question we have

$2500 = 2l + 2(750) \\ 2500 = 2l + 1500 \\ 2l = 2500 - 1500 \\ 2l = 1000 \\ \frac{2l}{2} = \frac{1000}{2} \\ l = \frac{1000}{2} \\ l = 500$

We have the final answer as

Hope this helps you

4 0

2 years ago

Write a story or model for 1 3/4 divided by 1/2

mariarad [96]

Answer: 3 1/2

Explanation:

Convert by the mixed numbers into improper fractions.

1 3/4=7/4

7/4÷ 1/2

Multiply by the fraction.

7/4*2/1

Then, you cancel out by the common factor of 2.

7/2

Finally convert by the improper fractions into the mixed numbers.

7/2=3 1/2

<u><em>Answer: 3 1/2</em></u>

Hope this helps!

Thanks!

-Charlie

7 0

3 years ago

My teacher wanted us to try this out, but I don't understand it as much.

statuscvo [17]

solve for the indicated variable means isolate that variable.

Ans(7)

P=IRT (T)

that means solve for T or make T alone on one side of equal.

To do that we just need to move IR on the left side

So we get:

$\frac{P}{IR}=T$

Hence final answer will be $T=\frac{P}{IR}$

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Ans(8)

2x-3y=8 (y)

-3y=8-2x

$y=\frac{8-2x}{-3}$

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Ans(9)

V=LWH (L)

$L=\frac{V}{WH}$

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Ans(10)

A=2(L+W) (w)

A=2L+2W

A-2L=2W

$\frac{A-2L}{2}=W$

$W=\frac{A-2L}{2}$

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Ans(11)

ax+by=c (y)

by=c-ax

$y=\frac{c-ax}{b}$

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Ans(12)

$P=\frac{R-C}{N}$ (R)

PN=R-C

PN+C=R

R=PN+C

4 0

3 years ago