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Drupady [299]
3 years ago
7

Factor completely :x^3-8y^3

Mathematics
1 answer:
mihalych1998 [28]3 years ago
3 0
X^3-(2y)^3

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

final answer ( x-2y)(x^2+2xy+4y^2) 

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An airplane travels 360 miles in 2 hours. At the rate, how far can the airplane travel in 8 hours. Please help me!
S_A_V [24]

Answer:

1440 miles

Step-by-step explanation:

360 miles = 2 hours

360/2=180 miles = 1 hours

8 hours = 180*80=1440 miles

5 0
2 years ago
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Hey y’all pls help me , what’s the answer :))
klio [65]
4th one. its simple math bro
7 0
3 years ago
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The ice cream shop offers 31 flavors. you order a double scoop cone how many different ways can the clerk put the ice cream on t
Lynna [10]

Answer:

465

Step-by-step explanation:

Since we are looking for the the number of combinations to have 2 different flavors in the ice cream, we can use the formula for combination.

_{n}C_{k}=\dfrac{n!}{k!(n-k)!}

Our variables are:

n = 31

k = 2

_{31}C_{2}=\dfrac{31!}{2!(31-2)!}

_{31}C_{2}=\dfrac{31!}{2!29!}

_{31}C_{2}=\dfrac{31!}{2!29!}

_{31}C_{2}=465

The number of possible combinations of having 2 different flavors out of 31 different flavors is 465.

6 0
3 years ago
What is the greater faction than 11/20
Mila [183]

Answer:

Are you looking to calculate whether 2/10 is greater than 11/20? One of the most common calculations you'll make in math is to compare fractions. In this really simple guide, we'll teach you how to compare and determine if 2/10 is bigger than 11/20 and walk you through the step-by-process of how the calculation is made.

As we always do in these tutorials, let's recap and remind ourselves that the number above the fraction line is called the numerator and the number below the fraction line is called the denominator.

Depending on the math problem you want to solve, there are two methods to calculate if 2/10 is larger than 11/20:

Convert the fractions to have the same denominator

Convert the fractions to a decimal number

Let's start with the first method: converting the fractions to the same denominator. First, we'll set up 2/10 and 11/20 side by side so they are easier to see:

Converting Denominator

2

10

&

11

20

Our denominators are 10 and 20. What we need to do is find the lowest common denominator of the two numbers. This is the smallest number that can be divided by both 10 and 20. In this case, the lowest common denominator is 20.

If we multiply the first denominator (10) by 2 we will get 20. If we multiply the second denominator (20) by 1 we will also get 20. We also need to multiply the numerators above the line by the same amounts so that the fraction values are correct:

2 x 2

10 x 2

11 x 1

20 x 1

This is what 2/10 and 11/20 looks like with the same denominator:

4

20

&

11

20

Now that these fractions have been converted to have the same denominator, we can clearly see by looking at the numerators that 4 is NOT greater than 11 which also means that 2/10 is NOT greater than 11/20.

Converting to Decimal

You can also compare these fractions by first converting them to decimal format. This is a lot faster than working out the lowest common denominator. All we do here is divide the numerator by the denominator for each fraction:

2/10 = 0.2

11/20 = 0.55

Now that these fractions have been converted to decimal format, we can compare the numbers to get our answer. 0.2 is NOT greater than 0.55 which also means that 2/10 is NOT greater than 11/20.

Hopefully this tutorial has helped you to understand how to compare fractions and you can use your new found skills to compare whether one fraction is greater than another or not!

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4 0
2 years ago
Plz help meh with dis i need it bad! .~.
fiasKO [112]

Answer:

c

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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