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VMariaS [17]
3 years ago
5

Cos 2x + 2 sin^2 x = _______

Mathematics
1 answer:
Tems11 [23]3 years ago
3 0

1

Step-by-step explanation:

cos 2x + 2 sin²x

= (1 - 2 sin²x) + 2 sin²x

= 1 - 2 sin²x + 2 sin²x

= 1

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The measurements of a circular object are given in the ratio table.
timama [110]

Answer:

after 42 mm the next one is 63mm and after 198mm it is 946mm

Step-by-step explanation:

5 0
2 years ago
Use structure find the perimeter of equilateral triangle klm given the vertices k(-2, 1) and m(10, 6).
Deffense [45]

Perimeter of the equilateral triangle KLM with vertices K(-2 ,1) and M (10,6) is equal to 39 units.

As given in the question,

Coordinates of vertices K(-2,1) and M(10,6)

KM = \sqrt{ (10-(-2)^{2} +(6-1)^{2} }

      = \sqrt{12^{2}+5^{2}  }

      = 13units

In equilateral triangle  KL = LM = KM = 13 units

Perimeter of equilateral triangle KLM = 13 +13 +13

                                                           = 39 units

Therefore, perimeter of the equilateral triangle KLM with vertices K(-2 ,1) and M (10,6) is equal to 39 units.

Learn more about perimeter here

brainly.com/question/6465134

#SPJ4

4 0
1 year ago
Cate and Elena were playing a card game. The stack of cards in the middle had 26 cards in it to begin with.
baherus [9]

Answer:

"Man seeks peace, yet at the same time yearning for war... Those are the two realms belonging solely to man. Thinking of peace whilst spilling blood is something that only humans could do. They're two sides of the same coin... to protect something... another must be sacrificed."

Step-by-step explanation:

7 0
3 years ago
Beth sold half of her comic books and then bought nine more. She now had 28. With how many did sh begin?
Vladimir79 [104]

Answer:

<h2><em><u>38</u></em></h2>

Step-by-step explanation:

She began with 38 books.

28 - 9 = 19

19(2) = 38

Hope this helps!

3 0
3 years ago
Read 2 more answers
Write and simplify an expression for the perimeter of each figure.
xxTIMURxx [149]
3a- 2b + 8b - 2 + 6a + 3c
3a + 6a -2b +8b + 3c - 2
9a + 6b + 3c - 2
4 0
3 years ago
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