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bonufazy [111]
3 years ago
15

Another question: suppose Grant is going to burn a compact disc that will contain 11 songs . And how many ways can Grant arrange

the 11 songs on the CD?
Mathematics
1 answer:
solong [7]3 years ago
7 0
121 different ways. I would just simply multiply 11 songs and 11 different placements so 11 x 11 = 121
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I not to sure how to rewrite this problem sin^2 (y)/1-cos(y). can you please explain how to rewrite.
butalik [34]
Using trigonometric identities, sin^2(y) = 1 - cos^2(y).
If you substitute that in, you get 1- cos^2(y)/(1-cos(y)).
You can factorise 1 - cos^2(y) to be (1-cos(y))(1+cos(y)).
This means that the answer is 1 + cos(y) as the 1 - cos(y) will cancel. 
4 0
3 years ago
The area of two similar octagons are 4 m2 and 25 m2. What is the scale factor of their side lengths
mylen [45]

Answer:

The scale factor of the sides of the Octagon is 2:5

Step-by-step explanation:

Both these octagons can be considered as the combination of 8 similar triangles joined edge to edge.

We know this property of similar triangles, that the ratio of area of similar triangles is proportion to the square of the ratio of sides of the similar triangle.

Side_{1} ^{2} : Side_{2} ^{2} =Area_{1} : Area _{2}

From the above property, we plug in the values

Side_{1} ^{2} : Side_{2} ^{2} =4: 25

Side_{1}  : Side_{2}  =2: 5

Therefore, the ratio of the sides of the Octagon are 2:5.

7 0
3 years ago
Find the product mentally<br> (ab + 3)^2
Diano4ka-milaya [45]
A^2b^2 + 3ab + 3ab + 3^2
= a^2b^2 + 6ab + 9
6 0
3 years ago
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A triangle has a side length of 3/4 inches and a side length of 3 inches. What could be the length of the third side of the tria
Tems11 [23]
We know that

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side. 

therefore
(3+3/4)=3.75 in

the third side must be < 3.75 in

the length could be 3 in
5 0
4 years ago
Read 2 more answers
Which expression is equivalent to -6.50 -5.1 + 2.3c - 1.8?
Irina18 [472]

Answer:

-13.4+2.3c

Step-by-step explanation:

Add the like terms.

-6.5-5.1-1.8=-13.4

-13.4+2.3c

Hope this helps!

If not, I am sorry.

5 0
2 years ago
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