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4 years ago

How can sums and differences of cubes be identified for factoring?

Mathematics

1 answer:

yan [13]4 years ago

5 0

Answer:

Step-by-step explanation:

The sum of two perfect cubes breaks down into two factors, the first is the sum of their cube roots, and the second is made up of the square of the first root minus the product of both roots plus the square of the second root.

The difference of two perfect cubes is decomposed into two factors, the first is the difference of their cube roots, and the second is made up of the square of the first root plus the product of both roots plus the square of the second root.

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Which cylinders with base area B and height h have volumes

faust18 [17]

Answer:

1) $B=15in^{2},h=17in$

3) $B=7.2in^{2},h=6.5in$

4) $B=8.5in^{2},h=30in$

Step-by-step explanation:

1. You can calculate the volume of a cylinder with the following formula:

$V=B*h$

Where $B$ is the area of the base and $h$ is the height.

2. Therefore, you only need to multiply the area of the base by the height in each option:

1) $V_1=15in^{2}*17in=255in^{3}$

2) $V_2=7.2in^{2}*6.5in=46.8in^{3}$

3) $V_3=34in^{2}*7.5in=255in^{3}$

4) $V_4=8.5in^{2}*30in=255in^{3}$

3. Therefore, the options 1), 3) and 4) have equal volumes.

6 0

4 years ago

Can the interest rates change on a credit card?

mamaluj [8]

Answer:

Step-by-step explanation:

Take these steps to get a lower credit card interest rate:

Do your homework before you negotiate.

Improve your odds.

Call your credit card company and ask.

Take advantage of other options.

4 0

4 years ago

What is the answer to 5÷7433

Andreyy89

Answer:

0.0006726759 to be exact.

7 0

4 years ago

Read 2 more answers

Using the quadratic formula to solve 5x=6x square-3, what are the values of x

hammer [34]

Step-by-step explanation:

$5x = {6x}^{2} - 3$

$3 = 6x^{2} - 5x$

$0 = {6x}^{2} - 5x - 3$

${6x}^{2} - 5x - 3 = 0$

3 0

3 years ago

A hiker starts hiking at the beginning of a trail at a point which is 200 feet below sea level. He hikes to a location on the tr

Maurinko [17]

780 feet because 200 feet below sea level means -200 and 580 feet above sea level mean +580 so if you add 580 and the 200 you get the distance between the two points.

4 0

4 years ago