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Sati [7]
2 years ago
5

Divide 2/7 by 1/3 please help me

Mathematics
1 answer:
nlexa [21]2 years ago
7 0

Answer:

6/7

Step-by-step explanation:

i am not sure if your question cut off but i am going to answer what i see on my side of the screen.

2/7 divided by 1/3 is the same as 2/7 times 3/1; since we multiply by the reciprocal when we divide fractions.

Therefore,

2/7 * 3/1 = 6/7

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What is the justification for the first step in proving the formula for factoring the sum of cubes?
Anna11 [10]

Explanation:

The formula isnt correctly written, it should state:

a^3+b^3 = (a+b)(a^2-ab+b^2)

You have to start from (a+b)(a^2-ab+b^2)  and end in a³+b³. On your first step, you need to use the distributive property.

(a+b)(a^2-ab+b^2) = a*(a^2-ab+b^2) + b*(a^2-ab+b^2)

This is equal to

a*a^2-a*(ab) + a*b^2 + b*a^2-b*(ab) + b*b^2 = a^3 - a^2b + ab^2 +ba^2 -b^2a +b^3

Note that the second term, -a²b, is cancelled by the fourth term, ba², and the third term, ab², is cancelled by the fifht term, -b²a. Therefore, the final result is a³+b³, as we wanted to.

5 0
3 years ago
Plz help this is due tomorrow
kkurt [141]
7:8 Purl Stitches I believe ! :)
4 0
3 years ago
Need help with math. I will give brainliest!!!!!!
Mice21 [21]

Answer:

~~

Step-by-step explanation:

Ok so first 2.4 will have to be changed to 24 which means we multiplied it by ten making it 24/10 since it is tan it is opposite side/ adjacent side so your one of your legs will be 24 and one will be 10. Now we just plug that into the Pythagorean Theorem to find the hypotenuse and we get 26. The area is 24b10/2=120 the area is 120.

Leg a= 24

Leg b= 10

Hypotenuse=26

Area=120  

Read more on Brainly.com - brainly.com/question/12450752#readmore

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3 years ago
A triangular bookend has a base of 4 inches and a height of 8 inches. Find the area of the bookend.
nekit [7.7K]
(8*4)/2= 16 sq inches
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3 years ago
Samantha has 8 balloons. Jacob has 1/2 as many balloons as Samantha. How many does Jacob have?
zavuch27 [327]
Jacob has 4 balloons, because 4 is half of 8

Hope this helps ya ;)
6 0
3 years ago
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