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Dmitry [639]
3 years ago
6

Help this question why s really hard

Mathematics
1 answer:
Kitty [74]3 years ago
7 0

Answer:

12 2/3

Step-by-step explanation:

I'm too lazy to give an explanation. Hope this helped though.

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How do you factor 2x^3+5y^3
Pavel [41]
All you do is...
\mathrm{Apply\:sum\:of\:cubes\:rule:\:}x^3+y^3=\left(x+y\right)\left(x^2-xy+y^2\right)

2x^3+5y^3=\left(\sqrt[3]{2}x+\sqrt[3]{5}y\right)\left(\left(\sqrt[3]{2}\right)^2x^2-\sqrt[3]{2}\sqrt[3]{5}xy+\left(\sqrt[3]{5}\right)^2y^2\right)
\left(\sqrt[3]{2}x+\sqrt[3]{5}y\right)\left(\left(\sqrt[3]{2}\right)^2x^2-\sqrt[3]{2}\sqrt[3]{5}xy+\left(\sqrt[3]{5}\right)^2y^2\right) \ \textgreater \  Refine

\left(\sqrt[3]{2}x+\sqrt[3]{5}y\right)\left(2^{\frac{2}{3}}x^2-\sqrt[3]{10}xy+5^{\frac{2}{3}}y^2\right)

Hope this helps!
4 0
3 years ago
Sonny has $75 to spend. The purchase hr wants to make requires $93. If he barrows tye extra money that he needs , how much does
jekas [21]
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3 0
3 years ago
(1 point) How many ways can you give 9 (identical) apples to your 5 favourite Mathematics lecturers (without any restrictions)?
cricket20 [7]

Answer:

126

Step-by-step explanation:

Total number of apples = 9

Number of favourite Mathematics lecturers = 5

To find number of ways in which 9 (identical) apples can be given to your 5 favourite Mathematics lecturers, find C(9,5)

Combination refer to selection of items such that order does not matter.

Use C(n,p)=\frac{n!}{p!(n-p)!}

Put n=9,p=5

C(9,5)=\frac{9!}{5!(9-5)!}\\=\frac{9!}{5!4!}\\=\frac{9(8)(7)(6)5!}{5!4!} \\=\frac{9(8)(7)(6)}{4(3)(2)(1)}\\=126

7 0
3 years ago
you are dividing 3972 by 41 explain why the first digit in the quotient should be placed over the tens place of the dividend
ValentinkaMS [17]
<span>41)3972...since 41>39 you won't have the first digit of the quotient in the</span>
5 0
4 years ago
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Write a<br> rule that could be used to simplify the square of any square root of a number.
Vlada [557]
Product rule- the first rule for simplifying square roots, which allows us to separate the square root of a product of two numbers into the product of two separate rational expressions


HOPES THIS HELP :)
5 0
3 years ago
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