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Aleksandr-060686 [28]
3 years ago
5

!!!!!! HELP REQUIRED The expanded form of (2x-3y)²

Mathematics
2 answers:
Lunna [17]3 years ago
4 0

Answer:4x^2-12xy+9y^2

Step-by-step explanation:

Law Incorporation [45]3 years ago
3 0

Answer:

(2 x x)^2 - (3 x y)^2

Step-by-step explanation:

Hope that helps sorry if it dosen't.

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Assuming that k is positive :)

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3 years ago
If you can guess my favorite sport and answer a quick question I will give you Brainliest
Rudiy27

Answer:

fave sport football?

and whats the ? XD

Step-by-step explanation:

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You want to make a rectangular banner that is 18ft. Long with a trim around the entire border of the banner . You have no more t
lys-0071 [83]

Answer:

6 ft

Step-by-step explanation:

Given that:

Length of rectangular banner = 18 ft

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To find:

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Solution:

Maximum trim available of the banner around the entire border of the banner = 48 ft

i.e. we are given the total perimeter of the rectangular banner.

Formula for perimeter of a rectangle is given as:

Perimeter = 2 \times (Length + Width)

Putting the values of perimeter and length to find the value of width.

48 = 2 \times (18 + Width)\\\Rightarrow 48 =36+2 \times Width\\\Rightarrow 2 \times Width = 48-36\\\Rightarrow 2 \times Width = 12\\\Rightarrow \bold{Width = 6\ ft}

So, width possible is <em>6ft.</em>

3 0
3 years ago
Elias was given a lock for his school locker. The lock contains numbers between
daser333 [38]

Answer:

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Step-by-step explanation:

Because order doesn't matter, but the numbers can't be repeated, we need to find the number of combinations where 3 individual numbers can be chosen out of 60 possible numbers using the binomial coefficient:

\binom{n}{k}=\frac{n!}{k!(n-k)!}\\ \\\binom{60}{3}=\frac{60!}{3!(60-3)!}\\\\\binom{60}{3}=\frac{60!}{3!(57)!}\\\\\binom{60}{3}=\frac{60*59*58}{3*2*1}\\ \\\binom{60}{3}=34220

Thus, Elias can make 34,220 unique 3-number codes given 60 different numbers.

6 0
2 years ago
What is the area of this composite shape
makvit [3.9K]

Answer:

51in

Step-by-step explanation:

you first have to find the area of the square by multiplying 6 and 7 which is 42. Then you have to find area of the triangle and the formula to do that is (length×width)÷2 . to find the length you have to subtract 7 from 13 which is 6 and the length you have to do 6-3 which is 3 then (6×3)÷2=9 and then you add the area of the square and the area of the triangle and get 42+9=51

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3 years ago
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